21700 5000mAh Rechargeable Lithium Battery Cell For Electric Vehicles

21700 batteryProduct parameters:18650 li-ion rechargeable battery voltage, 3.6V capacity:8800MAH *No memory effect, recharge up to 1000 cycles *Quality guarantee a year brand new Package included:8x21700 li-ion rechargeable battery Suitable for Used in all kinds of electric tools.

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Thank you for purchasing our products.
It’s probably essential to consider when selecting a High Rate 21700 Li-ion Battery. You need to know how much current the device you are trying to power requires before choosing your high Rate 21700 Li-ion Battery. If you select a 21700 Li-ion Battery with a current rating more minor than what you need, you will notice the High Rate 21700 Li-ion Battery overheating as it is working beyond its ability to keep up. You should also know two terms that are discussed in the high Rate 21700 Li-ion Batterycurrent ratings. Those terms are continuous discharge rating (CDR) and pulse discharge rating (Pulse).

*** 21700 Battery Care Tips ***
- Never fully discharge a Li-Ion battery (less than 2.5V load).
- Fully charge to 4.2V before first use.
- Never forcefully install (insert) the Li-ion battery.
- Do not use old and new batteries at the same time.
- Use only a top-notch battery charger.
- Do not expose to warm environment. Try not to short (connect) the positive (top) and negative (bottom) battery terminals (contacts).

FQA:

1. How does a rechargeable battery cell work?
To accept and release energy, a battery is coupled to an external circuit. Electrons move through the circuit, while simultaneously ions (atoms or molecules with an electric charge) move through the electrolyte. In a rechargeable battery, electrons and ions can move either direction through the circuit and electrolyte.

2. Is rechargeable battery AC or DC?
A rechargeable battery is an energy storage device that can be charged again after being discharged by applying DC current to its terminals.

3. Why can a rechargeable cell be charged?
Rechargeable batteries (also known as secondary cells) are batteries that potentially consist of reversible cell reactions that allow them to recharge, or regain their cell potential, through the work done by passing currents of electricity.

4. Are rechargeable cells worth it?
Rechargeable batteries almost always last longer, cost less in the long term and reduce waste compared with single-use batteries and when used in high-demand devices. That's because many of them continue to work until being charged up to 500 times (2 to 5 years), offering hundreds of hours more use than disposables.