It is usb car charger with metal material 100% Brand new and high quality?

Autumn is car charger coming,it is a good time for driving outdoor outing. Families and friends get together on the weekend for parades, picnics, barbecues and go out to appreciate the beautiful scenery of nature.Well, It's convenient to travel by their own car.here i will introduce a few useful car security tool, at the time of driving, can better protect you and your family friends and personnel safety. Can let our travel more smoothly.

1. 2.5 Inch Color LCD 270 Degree 6 IR LED HD Car DVR Camera Recorder Audio Video Recorder

It is usb car charger with metal material 100% Brand new and high quality,The high quality video & audio can be timely and strong evidence to address accident and distinguish responsibility.It's also a functional assistant of your private security. The DVR can capture clear videos for owners who want to monitor their cars. For professional engaged in the work of police officers, journalists, detectives, lawyers, taxi, etc.

Plug:AU/EU/US different plug available
Housing material:ABS+PC
Protection:Over current,over voltage,short-cuirt protecti
Application:iphone,ipad,powe bank,PSP,MP3 and so on
Certification:CE/ROHS/FCC

2 port usb car charger with metal material

What is battery charger?

Harmonic is a 9.6V 1.2A nicd battery charger in and one that designers of power continuity programmes and manufacturers of UPS (uninterruptible power supplies) cannot ignore. Typical harmonic problems include the distortion of mains power supply voltage, overheating of wiring, neutral conductors, supply transformers and switchgear and nuisance tripping of breakers. Harmonics can also cause disruption to equipment on the same supply and lead to random failures.

Harmonics are caused by voltage or current waveforms with frequencies that are multiples of the fundamental frequency – in Europe, 50Hz (50 cycles per second). The multiples are always ordered in a specific sequence: for example, the 2nd harmonic is 100Hz (2x50Hz), the third 150Hz and the fourth 200Hz and so on.

Harmonics and total power factor – implications for UPS sizing. Harmonics are also closely related to power factor management – and another key aspect of uninterruptible power supply system design and implementation. The displacement power factor is only applicable to the fundamental frequency (50Hz in Europe) and therefore does not take into account the power factor generated by any harmonics induced into the mains power supply by the load itself (referred to as the distortion power factor and produced by the harmonics produced by non-linear loads). The combination of the displacement power factor and the distortion power factor gives what is known to UPS systems experts as the true power factor. When correctly sizing a UPS, an understanding of this is critical.

Mitigation of total harmonics distortion. Harmonics issues need to be addressed at the design stage of any power continuity plan. Not least, because consumers are responsible for the harmonic levels introduced into their three-phase mains power supply.

A UPS can sometimes be fitted with a harmonic filter (post installation) but this can be a costly and inelegant solution as extensive internal wiring changes may be required. For a transformer-based UPS, using a 12-pulse rectifier in place of a 6-pulse set will reduce the levels of THDi (total harmonic distortion). Coupling this with a passive filter will provide further reduction to around 4%.

For a transformerless uninterruptible power supply, THDi levels of less than 4% can be achieved by installing an active harmonic filter. However, levels as low as 3% can now be achieved by some designs whose rectifiers are IGBT (Insulated Gate Bipolar Transistor) based. This can remove the need for an additional active harmonic filter and simplify the UPS design process. Such designs are expected to become the norm: not only do they reduce initial costs, but they allow a smaller UPS system footprint whilst increasing input power factors.

A popular approach to reduce the effect of leading power battery charger  factors on a UPS installation is to use an active harmonic filter with power factor correction on the UPS output. This presents the UPS with a more acceptable load, but results in higher capital and installation costs, lower efficiency and a greater footprint.

Familiar territory for UPS manufacturers. Although many aspects of harmonics must be considered when specifying a UPS system, reassurance can be gained from the fact that this is familiar territory for UPS manufacturers such as Riello UPS. End users and their professional advisers can certainly be confident that this specialised aspect of UPS application will be thoroughly addressed during the modern consultative sales and specification process.

9.6V 1.2A nicd battery charger

The charge cannot be terminated on a voltage capacity reached at 29.4V 14A lithium battery charger?

These remarks apply equally to lithium ion and lithium polymer batteries. The hemistry is basically the same for the two types of batteries, so charging methods for lithium polymer batteries can be used for lithium-ion batteries.
Charging lithium iron phosphate 3.2 volt cells is identical, but the constant voltage phase is limited to 3.65 volts.

The lithium ion battery is easy to charge. Charging safely is a more difficult. The basic algorithm is to charge at constant current (0.2 C to 0.7 C depending on manufacturer) until the battery reaches 4.2 Vpc (volts per cell), and hold the voltage at 4.2 volts until the charge current has dropped to 10% of the initial charge rate. The termination condition is the drop in charge current to 10%. The top charging voltage and the termination current varies slightly with the manufacturer.

However, a charge timer should be included for safety.

The charge cannot be terminated on a voltage. The capacity reached at 4.2 Volts per cell is only 40 to 70% of full capacity unless charged very slowly. For this reason you need to continue to charge until the current drops, and to terminate on the low current.

It is important to note that trickle charging is not acceptable for lithium batteries. The Li-ion chemistry cannot accept an overcharge without causing damage to the cell, possibly plating out lithium metal and becoming hazardous.

Charger indicator: red charging/green finished
Protection:Over current,over voltage,over Temperature,auto -Shut Down when Battery is fully charged
Charging time Control,never damage battery
Application:Power Tool，Electrical Bike，Electrical Toy，Mobile Lamp，Security system and so on
100% Burn-in QC test

 29.4V 14A lithium battery charger

What is Advantages of Battery Chargers?

There are various battery chargers that give immense benefits to its owners. They provide the convenience, saving, and the surroundings, contributing to the new technology, while in use. Battery chargers are an outstanding addition to your office, house or perhaps car.

There are some that can be expensive to purchase, but they provide personal saving in hundreds of dollars. This is a significant difference, and it seems well worth the initial expenditure. Who has not left the lights on your car only an extra shot with a dead battery? People with charger don't need to have the expense of asking for help. It has been seen that auto repair shops often charge much greater than a hundred dollars for the service.

They are a very useful tool. The way to obtain batteries at the office or home may become considered an odd job. Using rechargeable battery charger ensures the limitless supply, wherever and whenever you need them. It is required for the mobile phone, laptop, mp3 player and it seems inevitable for the most. The usefulness of a car battery charger is usually huge. Regardless of whether it is required for charging digital camera batters or charging the battery for your ship, it is a time-saver if you own one of it. The majority people use some form of battery charger daily, weekly or monthly.

Over recent years, the nation began recognizing the importance of involving maintaining and preserving the planet's resources. Rechargeable battery power can therefore be helpful in this substantially. They require less energy for powering most of the things we use on the earth daily. In addition to this, if rechargeable batteries are used with the charger, you use and purchase less batteries. This means fewer emissions and less waste at landfills meets the energy required to manufacture the components themselves. Solar chargers are clearly beneficial for the environment. The use of solar power production is definitely increasing commonplace. This method saves almost twice that energy. The environment condition can be settled with something as common as with the use of a battery charger.

The benefits of the chargers speak for alone. There are people who want to be involved in the technological progress. Many people want to help preserve the earth and its resources. Most people want to save time. Everyone wants to save money.

4.2V 0.8A li-ion battery charger

Choosing and Installing a Motorcycle Battery

Although a motorcycle battery and other types of vehicle batteries are built for longevity, over time batteries will slow down and eventually wear out. This occurs when the sulfate that flows over the plates begins to build up a residue on the plates, slowly diminishing the conductivity. In this article you'll find useful information for choosing, installing, and maintaining your next motorcycle battery.

Choosing the correct size:
In order to choose the right size motorcycle battery, you'll need to know the cold cranking amps (CCA) of your bike. Technically speaking, CCA is the number of amps a lead-acid battery at 0ºF can deliver for 30 seconds and maintain at least 1.2 volts per cell. Once you determine the required CCA, you'll need to measure the length, width, and height of the cavity to ensure a correct fit.

Removal and installation basics:
When the time comes to replace your motorcycle battery, never remove the battery while the engine is running. If for reason it does not have a charge, always remove the negative cable before the positive. When installing the new battery, reverse the order and connect the positive cable first before connecting the negative. Take extra caution to identify the positive and negative terminals before attaching the cables. Accidentally reversing the polarity can cause the battery to explode or inflict a great deal of damage to your bike's electrical system.
Recharging:
If the battery won't start or seems dull, you may only need to recharge it. Always check the voltage of your motorcycle battery before recharging and never charge your battery at an amperage more than 1/6 the rated capacity of your battery. For example, it you have a 7 amp-hour battery, you should not charge it at an amperage of more than 1 amps. If you have an 18 amp-hour battery, you can charge it at a maximum of 3 amps. Therefore, most battery tenders offer charging amperage of from 1/2 amp up to 2 amps. NOTE: NEVER USE AN AUTOMOBILE BATTERY CHARGER ON YOUR POWERSPORT SEALED BATTERY. Although recharging seems like a simple process, as a general rule of thumb always wear protective eye wear and refrain from smoking as you are working with explosive gasses.

You'll also want to ensure that there is no electrolyte covering the plates before adding water or recharging. Once you add the water, make sure that the vent caps are reinstalled before charging. Never recharge a motorcycle battery or any type of vehicle battery with the vent caps open. When you've finished charging, turn off the charger before removing the charger cables from the motorcycle battery.

Activating your new battery:
If you recently purchased a conventional battery, you may need to activate your motorcycle battery. Activating a non-sealed battery is the process of adding acid and charging the battery to the point of optimum functionality. To do this, remove the sealing tube and filling plugs, fill the battery with electrolyte, let the battery stand for about 30 minutes, then charge the battery for 3 to 5 hours at approximately 1/6 of the rated capacity. Sealed motorcycle batteries require much less maintenance and never require additional electrolyte.

If you find yourself needing to recharge your battery on a consistent basis, it's probably time to replace it to avoid getting stuck when you're ready to ride. To ensure that your new battery has a long life, it's imperative to find the right size for your bike and not to overcharge. Using a battery that is too large for your bike or overcharging the battery are the two most common causes reducing a battery's lifespan. Spending a little time choosing the right battery charger now means enjoying years of enjoyable, stress-free motorcycle rides in the future..

56V 3.5A lithium battery charger

Authentic And Reliable Laptop Chargers At Laptop charger Factory

We all buy our gadgets after long market researches and spending our savings. This is why our gadgets become precious for us and our important data stored in it makes it more valuable for us. So it become very necessary to carefully choose the right accessory for our laptops. Using Imitated accessories like laptop charger and battery with our laptop can permanently damage our laptops.

While selecting a charger for the laptop we do not put much attention towards the product certification and its manufacturing details like voltage, power, etc. Sometimes we have to pay a lot due to such negligence. Here, we have come up with online selling of laptop chargers for every brand and all of its models. All you need to do is to visit and buy your required charger with few clicks that too with complete product warranty.

We assure our customers about the quality and reliability of the product. Adapters we provide are extensively tested to protect your gadget from overheating and damage.  provides highly comparable charger price online in US. The power supply and input/ output voltage details are available to ease our customers for verifying the specifications of the charger before placing the final order. In case, you still do not find your required charger series or model available in our store then we are easily reachable through our live chat. Your queries and concerns will be addressed at the earliest and our customer care will assist you in the best possible way.We strive to provide best products, which are worth the prices we offer along with the quality services.

We assure that the charger provided to you meet all safety standards. Our chargers are specially designed to protect the laptop from voltage fluctuations and this has been one of the major factors for our customers to choose laptop charger factory.

The prices offered are reasonable to suit every laptop owner's pocket. You can find some other offers as well like discounts on adding a car charger to your order, extending the charger's cord length, etc. We are high ranked for selling reliable, quality and certified product. Every charger is tested well tested by our highly technical experts before shipping it to you.The laptop chargers are designed to protect the circuits from humidity and moisture.

14.4V 5A li-ion battery charger

Know Why batteries charger Die Unexpectedly In Advance

An batteries most important part is its battery. Therefore, the batteries performance relies largely on its battery. Daily maintenance and care of batteries charger keep it in good structure for a long time span.

So many reasons are there which reveal about the failure of batteries charger unexpectedly in advance. Find the reasons below:

1. Excessive utility:

A battery's life period is largely reliant on the amount of its usage. When utilized too much, batteries wear out faster. The energy stored in batteries is utilized by batteries and then the batteries charger supplies this current to the electronic and electrical gadgets keeping them running amid power outages. The more load or gadgets you use amid power failure, more power will be drained out of batteries and they will die quicker.

2. Low quality battery charger:

An batteries unit has 3 parts: a battery, a charger, and an batteries charger. The charger is associated with the supply of power and it charges the battery when the power is originating from the utility. A low quality charger can damage the battery speedier than whatever else. Utilize great quality chargers to extend lifespan of battery.
3. Battery overcharging:


Overcharging prompts erosion of battery plates which inevitably brings about untimely battery disappointment. On the off chance that your battery is getting excessively hot, it means that it is getting cheated. Overcharging a rechargeable battery prompts its ahead of schedule than anticipated disappointment.

4. Discharging battery deeply:

Deep releasing is bad for the strength of any rechargeable battery. For instance profound cycle batteries like lead-corrosive batteries are intended to be frequently profoundly released utilizing the vast majority of its ability. A battery loses its effectiveness and limit when it is subjected to profound release.

5. Deficiency of daily maintenance:

Low maintenance is a noteworthy purpose for battery harm. Rust, consumption and dryness are greatest foes of your batteries charger. Rusting in terminals decreases the present stream to and from the battery. This limited stream of current results in moderate battery charging which at last diminishes battery life. Batteries likewise require customary garnish up with refined water and cleaning. In the event that top-up is not done than battery plates get dried. Dry batteries can't be spared from disappointment.

6. Leakage of Electrolyte:

It is vital to examine batteries charger frequently for any harm and blame. Here and there the electrolyte spills through splits created in battery. Because of absence of electrolyte the batteries come up short.

29.4V 14A li-ion battery charger

How to properly use the charger

Charger are currently mainly divided into mobile phone charger and travel charger, dock charger, car charger available on the market,the differences in performance indicators depends on where and how to use. Docking charger. such chargers are generally designed to be dual-slot, which can charge two batteries, in addition to allowing users to charge the battery on the phone being used, but charge another. However, the charging time of a docking charger mostly with slow charge mode is longer, about 4 to 5 hours.

Travel Charger. The standard configuration of most mobile phone is travel charger. Travel charger and seat charger for charging a battery effect is the same,which is easy to carry and more appropriate for those who frequently travel abroad , it is generally fast charge mode, charging time is 2 to 3 hours. Travel charger dose not make any adverse effects on the mobile phone, but the user must confirm that it is the original charger when purchasing.
Car Charger. Such charger can easily charge the phone in the car. One end of the car charger is plug into the cigarette lighter, and the other end is connected to the phone, the phone should not be charged in the car for a long time because of the car closed with a high temperature, otherwise it will cause damage to the phone.

The original travel charger and seat charger adopt protect circuits or switch road design for the protective effect for rechargeable battery, while fake and shoddy charger without protected circuit is easy to burned or even burn the phone, choose the original travel charger and away from knock-off. "Auto resolution lithium or NiMH batteries"is a apparent key to identity a charger,which can automatically distinguish two different battery charger in case of "the discharge of lithium malfunction".If you accidentally press the "release pushbutton" on dock charger when charging lithium batteries, a good charger can identify lithium battery, it will not make a discharge operation; poor cradle will result in the impairment of lithium battery life. A good charger with protection settings and charging voltage standard does not overshoot or be unsaturated.
We shall keep safe using home appliances no matter what kind of we have bought, not to mention the phone,we must abandon some of habits without the security use of mobile phone especially when the phone is charged.

How to properly use the cell phone charger is the key to safe use of the mobile phones,if we do not pay attention to, we would not only get an electric shock, but may occur an explosion.

1. Do not expose the phone charger at a high temperature, during the summer with hot and humid climate and electricity peak, the phone charger is poor at heat dissipation,plus the unstable current, increasing the likelihood of conduct problems, especially for the phone with the metal body. Those with sweating palms and others with damp hair after taking a bath will likely be subjected to electric shocks. Moreover, do not cover the cell phone with blanket or pillow to avoid the battery temperature is relatively high, and thus the occurrence of breakdown, combustion, explosions and other tragedies while charging the phone.

2.Do not use the phone while charging. We are increasingly dependent on the smartphone, and like using a cell phone while charging, the phone is charging, it is not wise to pick up the smartphone when charging. The charger transformer parts is likely to be breakdown if the charger with poor quality. Furthermore, the phone with low battery will produce more radiation harmful to human health.

3. Promptly unplug the charger when is fully charged. Many are accustomed to connecting the phone to the charger all day long for convenience. However, such an approach would lead to some security risks, the coil of the charger plugged may cause fever, insulating paint loss and damage, and even cause a fire due to heat. Therefore, unplug the charger to timely prevent fire at the rear end of charge or out of the room for a long time.

4. Mobile phone charger battery has a certain service lifespan, replace the phone charging immediately when damaged.

12.6V 2A li-ion battery charger

How to discern a charger

How to discern a charger depends on how its work performance, safety requirements and electromagnetic compatibility is.

Different types of batteries have different charging requirements, the parameters of a charger are mainly charging method, charge current, charge voltage.

(1) Charging method: how to charge is based on the constant voltage or constant current. Given the current lithium-ion battery, charger charging current with limiting constant voltage mode shall be adopted, that is, charging at constant voltage automatically converted when the charging at limited current to the limited voltage.

(2) Charging current: specifies the maximum output current of the charger. The size of the charging current shall be applied to the size of the battery capacity, generally should not exceed 1C5A.

(3) charging voltage: specifies the maximum output voltage of charger. The charging voltage is depends on limit voltage of battery charged; when charging the lithium-ion battery with nominal voltage of 3.6V, the maximum output voltage of charger required is typically 4.2V (in fact, the phone is equipped with a lithium-ion battery with protection device, so the charger output voltage can also be slightly higher than 4.2V, but the voltage is not more than 4.5V in order to ensure safety).

Electromagnetic compatibility For chargers products, the electromagnetic compatibility requirements mainly reflects in electromagnetic harassment. Electromagnetic disturbance is divided into conduction harassment and radiation harassment. the many advantages of switching power supply contribute to the switching power supply circuit for universal charger. But the switching power supply of high-frequency switching devices produces high-frequency harmonic signals. These high frequency signals propagate through the power terminal via the grid or via space radiation result in the electromagnetic pollution to the environment, troubling the work around electronic devices,even may cause serious adverse effects on human health and the safe operation of the grid. Therefore, in order to reduce the electromagnetic pollution to the environment, the power terminal (or interface terminal) disturbance voltage for the electronic products working and radiation disturbance field strengths shall be less than a certain limit.

4.2V 0.8A li-ion battery charger

Advantages of Battery Chargers

There are various battery chargers that give immense benefits to its owners. They provide the convenience, saving, and the surroundings, contributing to the new technology, while in use. Battery chargers are an outstanding addition to your office, house or perhaps car.

They are a very useful tool. The way to obtain batteries at the office or home may become considered an odd job. Using rechargeable battery charger ensures the limitless supply, wherever and whenever you need them. It is required for the mobile phone, laptop, mp3 player and it seems inevitable for the most. The usefulness of a car battery charger is usually huge. Regardless of whether it is required for charging digital camera batters or charging the battery for your ship, it is a time-saver if you own one of it. The majority people use some form of battery charger daily, weekly or monthly.


The benefits of the chargers speak for alone. There are people who want to be involved in the technological progress. Many people want to help preserve the earth and its resources. Most people want to save time. Everyone wants to save money.

4.2V 0.8A li-ion battery charger

How to Test a Laptop Charger

Laptop computers are one of the many items that we use that depends on a rechargeable laptop battery to keep it up and running. When your laptop fails to stay charged or to charge at all, it is time to troubleshoot the issue on your own before paying a professional. First test the charger to make sure that it is working properly.

You can test your laptop battery charger follow the below steps

Be sure that the charger is plugged into a working outlet and getting power.

Try charging your laptop with the laptop powered off. Sometimes the charger will charge the laptop when it is powered completely off, but not when it is on. If it only charges the Toshiba laptop battery when the laptop is off, then you have a faulty charger.

Check the battery for corrosion and/or leakage. If there is a sign of either corrosion or leakage you will need to stop attempting to use the battery pack and replace it immediately.

Try to run the laptop from the laptop charger only; if it will not run off the charger alone then the charger is faulty or no longer any good to power the battery. In some cases your laptop will run off the charger, but the charger will not be strong enough to charge the laptop. In this case you have a faulty charger.

4.2V 0.8A li-ion battery charger

Charging Lithium ion batteries at slow rates

When the charge rate during the constant current phase is low, the charger process will spend less time during the constant voltage tail. If you charge below about 0.18 C, the cell is virtually full when the 4.2 volts is reached. This can be used as an alternative charge algorithm. Just charge below 0.18C constant current and terminate the charge when the voltage reaches 4.2 volts per cell.

Safety

Every lithium ion battery pack should have a method of keeping the cell balanced and preventing them from being over-discharged. This is usually done with a safety board which monitors the charge and discharge of the pack, and prevents dangerous things from happening. The specifications of these safety boards are dictated by the cell manufacture, and may include the following:
Reverse polarity protection
Charge temperature--must not be charged when temperature is lower than 0° C or above 45° C.
Charge current must not be too high, typically below 0.7 C.
Discharge current protection to prevent damage due to short circuits.
Charge voltage--a permanent fuse opens if too much voltage is applied to the battery terminals
Overcharge protection--stops charge when voltage per cell rises above 4.30 volts.
Overdischarge protection--stops discharge when battery voltage falls below 2.3 volts per cell (varies with manufacturer).
A fuse opens if the battery is ever exposed to temperatures above 100° C.

4.2V 0.8A li-ion battery charger

List of Mobile phone accessories

The list of accessories includes, but is not limited to antennas, hands-free car kits, face plates, battery chargers, batteries, power connectors, cases, boosters, etc. Some of these mobile phone accessories are designed for security, some for safety.

Hands-free car kit

Safety comes first into any user mind when mobile phone accessories. Whether a person bought a Motorola cell phone, a Nokia cell phone, or any other brand of mobile phones, that person could surely find a hands-free car kit that will work with his/her cell phone sold in many places. Mobile phone accessory should be the first one on the list to buy as it provides additional safety and security for anyone using a mobile phone while driving. Also, when buying a mobile phone hands-free car kit, take into consideration the comfort, design, and sound quality.


Rapid travel charger

Rapid travel chargers are quick charging solution for your mobile phone. If someone would ever find himself/herself in a situation when the cell phone battery is empty, the rapid travel charger mobile phone accessory could save the day.

8.4V 1.2A li-ion battery charger

How to Test a Laptop Charger

Laptop computers are one of the many items that we use that depends on a rechargeable laptop battery to keep it up and running. When your laptop fails to stay charged or to charge at all, it is time to troubleshoot the issue on your own before paying a professional. First test the charger to make sure that it is working properly.

You can test your laptop battery charger follow the below steps

Be sure that the charger is plugged into a working outlet and getting power.

Try charging your laptop with the laptop powered off. Sometimes the charger will charge the laptop when it is powered completely off, but not when it is on. If it only charges the Toshiba laptop battery when the laptop is off, then you have a faulty charger.

Check the battery for corrosion and/or leakage. If there is a sign of either corrosion or leakage you will need to stop attempting to use the battery pack and replace it immediately.

Try to run the laptop from the laptop charger only; if it will not run off the charger alone then the charger is faulty or no longer any good to power the battery. In some cases your laptop will run off the charger, but the charger will not be strong enough to charge the laptop. In this case you have a faulty charger.

Test your charger with a voltmeter. If it is an AC charger of battery, set a voltmeter to 25 VAC. Make the contacts and probes touch, and look for a reading. If there is not a reading on the meter, the charger is not any good. For DC chargers, set a voltmeter to 25 VDC and make the contacts and probes touch. The meter should read at least 1V more than the chargers rating. If it does not, the probes need to be switched.

4.2V 0.8A li-ion battery charger

Advantages of Battery Chargers

There are various battery chargers that give immense benefits to its owners. They provide the convenience, saving, and the surroundings, contributing to the new technology, while in use. Battery chargers are an outstanding addition to your office, house or perhaps car.

They are a very useful tool. The way to obtain batteries at the office or home may become considered an odd job. Using rechargeable battery charger ensures the limitless supply, wherever and whenever you need them. It is required for the mobile phone, laptop, mp3 player and it seems inevitable for the most. The usefulness of a car battery charger is usually huge. Regardless of whether it is required for charging digital camera batters or charging the battery for your ship, it is a time-saver if you own one of it. The majority people use some form of battery charger daily, weekly or monthly.


The benefits of the chargers speak for alone. There are people who want to be involved in the technological progress. Many people want to help preserve the earth and its resources. Most people want to save time. Everyone wants to save money.

4.2V 0.8A li-ion battery charger