18650 Stick Battery Pack High Capacity 11.1V Lithium Ion Rechargeable 1S3P 2200mAh 3000mAh 4400mAh 6000mAh 6600mAh

Description

 

18650 protected batteries (with BMS) have an electronic circuit. The circuit is built inside the battery pack that prevents the battery from overcharging, overheating, overdischarging, overcurrent and short circuiting. Battery with BMS is much safer than an 18650 unprotected battery (battery cell) with less chance of overheating, fire or even bursting.
18650 battery cell is cheaper but we do not suggest. It should only be used where load and charging are monitored and controlled externally. It is usually called the button on the top but please check the specifications.
If a battery pack is damaged or looks corroded or appears to be leaking, get rid of it and send it to a recycling center.

How often do i charge the battery:

The method you charge your battery affects the battery life. If you can measure it, try discharging from 3.7v down to about 3v before recharging. If you are not sure, use a device until it claims that the battery pack needs to be replaced. For example, a flashlight, run it until the light is dim or off. A professional adapter/charger will tell you the voltage so you can finally be aware of the lifespan in different devices. If you charge too often, you can use up to the lifespan.

Some people do not let the voltage drop below 3.3v (or even higher). Different 18650 models have different maximum cycles. So this is really a process of matching the device and application to the battery life. Be aware that an 18650 battery pack that drops below 2.5v may “lock” the device, making it unable to use. The “lock” occurs in devices such as e-cigarettes.

How do I know if the battery is dead?

The battery loses charge much faster than normal. generally after a few days or even worse the same day
The battery gets hot when charging or discharging, hotter than normal.
The battery should be used over 3 years.
Battery has less than 80% original capacity.
Charging time is unusually long.
There is ANY crack or deformation in the battery.
These are the 7 signs that indicate that your battery pack is dead and it is time to get a new one. If you ignore the warnings, you risk fire or even explosion during use.

18650 chemistry
There are different chemical combinations for 18650 battery. We recommend focusing on protected condition, chemistry can change and is not always reported. Here are the main types at the moment. Depending on the requirements of your device, you should choose the most suitable type.

LiMn2O4:

Lithium manganese alloy
also known as IMR or LMO or Li manganese

LiNiMnCoO2:

Lithium manganese nickel
also known as INR or NMC

LiNiCoO2:

Lithium nickel cobalt alloy
also known as NCO

LiCoO2:

Lithium cobalt alloy
also known as ICR or LCO or Li-cobalt

LiFePO4:

Lithium iron phosphate
also known as IFR or LFP or Li-phosphate

LiNiCoAlO2:

Lithium nickel cobalt aluminum alloy
also known as NCA or Li aluminum