Xtar 18650, 20700, 21700 batteries

I received few batteries from Xtar and here you can see some useful informations.
Considering that I am not expert for batteries, I will write here expert's conclusions.






One of the batteries that I received is Xtar 18650 battery. Battery specifications:

- Model: 18650
- Nominal capacity: 2600mah
- Nominal voltage: 3.6V
- End of discharge voltage: 2.5V
- Max pulse discharge current: 35A
- Max continuous discharge current: 25A
- Charging temperature range: 0~60c
- Discharging temperature range: -40~60c
- Cycle life: 500 times
- Positive pole: Flat top

• Using internationally renowned brand NPE/Molicel batteries
• International Safety and Quality Certificates: RoHS, CE, FCC


On their website you can see that after the battery is cycle-used 500 times it's lifespan decreases only 20% or less, compared with other batteries whose lifespan decreases 40% or more.
About testing results, this battery has real 2600mah and max discharge current is 25A (constant).

http://www.xtar.cc/product/INR-18650-2600-High-drain-Li-ion-Battery-118.html








Next battery is 20700 battery, specifications of the battery:

- Model: 20700
- Nominal capacity: 3000mah
- Nominal voltage: 3.6V
- End of discharge voltage: 2.5V
- Max pulse discharge current: 35A
- Max continuous discharge current: 30A
- Charging temperature range: 0~60c
- Discharging temperature range: -40~60c
- Cycle life: 500 times
- Positive pole: Flat top


On their website you can see that after the battery is cycle-used 500 times it's lifespan decreases only 20% or less, compared with other batteries whose lifespan decreases 40% or more.
About testing results, this battery has real 2964mah and max discharge current is 30A (constant).

http://www.xtar.cc/product/INR-20700-3000-High-drain-Li-ion-Battery-119.html







Next battery is 21700 battery, specifications of the battery:

- Model: 21700
- Nominal capacity: 4200mah
- Nominal voltage: 3.6V
- End of discharge voltage: 2.5V
- Max pulse discharge current: 45A
- Max continuous discharge current: 30A
- Charging temperature range: 0~60c
- Discharging temperature range: -40~60c
- Cycle life: 500 times
- Positive pole: Flat top



On their website you can see that after the battery is cycle-used 500 times it's lifespan decreases only 20% or less, compared with other batteries whose lifespan decreases 40% or more.
About testing results, this battery has real 4145mah and max discharge current is 30A (constant).



http://www.xtar.cc/product/INR-21700-4200-High-drain-Li-ion-Battery-120.html





Thanks Xtar