Ev Cylindrical Li Ion Battery Cell 4000mah 21700 Lifepo4 Battery For E Bike
Brand Name:KVOU
Certification:CE,UL
Model Number:18650 -2000mAh
Minimum Order Quantity:Negotiable
Delivery Time:7-15working days
Payment Terms:T/T, D/P, D/A
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Yichun Jiangxi China
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No. 122 Yishang Avenue, Economic and Technological Development Zone, Yichun City, Jiangxi Province, China, 2# Zhihui Technology Group, Youth Cloud Digital Economy Industrial Park
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21700 4000mah Cylindrical Li-Ion Battery Cell For For E-Bike Ev
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.
Dear friends:
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).
| Type | 21700-4000mAh | |
| 40EB | ||
| Rated capacity(mAh) | 4000 @0.2C | |
| Minimum capacity(mAh) | 4000 @0.2C | |
| Rated voltage(V) | 3.6 | |
| Rated current(mA) | Charge | 2000 |
| Discharge | 4000 | |
| Max. current (mA) | Charge | 4000 |
| Discharge | 120000 | |
| AC internal resistance (mΩ) | ≤25 | |
| Weight (g) | ≤71 | |
| Applications | Electric cars/electric bicycles | |
| Cycling performance | 90%@800 or80%@15000.5C/1C,4.2-2.75V | |
FQA:
1. What cells are bigger than 18650?
21700 batteries are slightly larger than 18650 batteries. Both come
in flat top and button top forms. However, one is smaller than the
other. Being that the 21700 battery is slightly larger, it will
also provide more energy/power and runtime.
2. Does parallel increase voltage?
Connecting a battery in parallel is when you connect two or more
batteries together to increase the amp-hour capacity. With a
parallel battery connection the capacity will increase, however the
battery voltage will remain the same.
3. Are 21700 battery rechargeable?
The 21700 battery is a rechargeable lithium-ion cylindrical cell
defined by its 21mm x 70mm dimensions. The 21700 is a fast-growing
battery size as modern flashlights and other high-drain devices
require increased battery capacities for extended runtimes.
4. What is the real capacity of 21700?
21700 – were designed to be a larger and higher capacity
replacement for 18650 batteries. Like the 18650, the 21700 has a
nominal voltage of 3.6/3.7V. The 21700 was designed to replace the
18650 in EV battery packs. The capacity of these batteries ranges
from about 4,000 to 5,000 mAh.
Ev Cylindrical Li Ion Battery Cell 4000mah 21700 Lifepo4 Battery For E Bike
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