21V Lithium Battery With Electric Quantity Display, 4.0 Ah Battery With Charger Adapter

★【Compatible with More 】Our batteries are compatible with some major brands,please feel free to contact us for more model information.
★【21 Volt Lithium Battery 】Battery voltage: 21v, capacity: 4000ah, type: lithium ion, made of 10 pcs quality lithium ion battery,4 LED fuel gauge power display,battery light won't light up unless you will press the battery button, in order to reduce battery.
★【Charger】Support 100-240v universal standard ac input voltage. 1a power adapter,us plug,led indicator to easily see the charging situation.
★【Multi-Protect Safety System】This battery is equipped with overload protection, overheat protection & over-discharge protection.
★【Note on Battery】In order to protect the battery, please do not charge more than 6 hours.Note: Please Fully charge the battery before its first use. Please do not charge the battery for overnight since it will badly damage the battery life.
★【WE’VE GOT YOU COVERED】 Any Non-human Damage Or Any Reason You Are Not Completely Satisfied With Our Product, We Will Immediately Provide You A Full Refund ( Or Replace Your Item).
★【Great Gift】For Dad, Mom, Husband, Friends And Family.
 
Our 21v lithium battery with parameters display are compatible with some major brands, please feel free to contact us for more model information.
 
Specifications:
Type: Battery
Rated Voltage: 21V
Parameters Display:4 led electric quantity display
Power Input: 400W
Charger Input:110V, 50Hz-60Hz
Number of Batteries:1
Cells Per Batter: 10
Battery Weight : 20 OZ
 
Specification:
 Type: Battery power adapter
 Material: ABS
 Plug type: US
 Input voltage: 100-240V 50HZ/60HZ
 Interface: about 5.5*2.5mm/0.2*0.1in
 Output current: 1A
 Weight: 2 OZ
 
Note：
1. Do not try to open the battery.
2. Protect the battery against continuous intense sunlight, fire, water, and moisture.
3. Do not damage the battery with sharp objects.
4. Do not discard this product at will.
5. Overcharging the device will reduce the life of the battery, unplug it from the charger in time to avoid overcharging.
6. If the battery does not last 10 minutes, it may be caused by overheating. Please wait for 5 minutes for the battery to cool down.
Battery Maintenance:
 Please read the following notes on battery maintenance carefully
After receiving the product, please fully charge the battery before using it.
In order to protect the battery, please do not charge the battery for a long time. The best time to charge is not more than 6 hours.
Please do not charge the battery all night, it will seriously damage the battery life.
Always remove battery pack from your tool when you are assembling parts,making adjustments,cleaning,or when not being used for an extended time.
Do not leave the battery dormant for long periods of time. We recommend using the battery at least once every two to three weeks.
How to install battery
Step 1: Hold the machine firmly with one hand. Push down the battery unlock button located on the rear side of the battery with the other hand.
Step 2: Keep pushing the unlock button down and slide the battery backward out of the machine.
Step 3: You made it.