21700 RPE Cell Battery

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Original Price $10.00
Current Price $8.99

21700 4000mAh High Discharge Flat Top

4000mAh High Discharge Flat Top 

Nominal Capacity: 4000 mAh (.2C)
Nominal Voltage: 3.65V
Discharge End Voltage: 2.75V
Max Continuous Discharging Current: 8A (Not for Cycle Life)
Weight (max): 67.4g

Cycle life

Under the test environment of 25± 2°C, chargei the battery according to 7.1.2, sleep for 15 minutes, discharge the battery according to 7.2.3, sleep 15 minutes, charge and discharge once for one cycle, test the discharge capacity after 1000 cycles. Discharge capacity ≥80% of initial capacity after 1000 cycles

The nominal capacity is the capacity measured from 0.2C discharge to 2.75V when the battery is fully charged in the standard mode at 25 °C.

Maximum charging current

0℃ ≤ T ≤ 5℃ 0.1C (400mA)
5℃ < T ≤ 15℃ 0.2C (800mA)
15℃ < T ≤ 45℃ 0.5C (2000mA)

Maximum discharge current

-20℃ ≤ T ≤ 5℃ 1.0C (4000mA)
5℃ < T ≤ 45℃ 3.0C (12000mA)
45℃ < T ≤ 60℃ 1.5C (6000mA)

70.5mm (L) x 21 mm (D) 

-Do not over discharge/overcharge 
-Recharge drained batteries ASAP 
-Do not short circuit 
-Do not dispose of in fire 
-Do not expose to extreme heat or water 
-Please be familiar with handling lithium-ion batteries before purchase.

Model INR21700
Size 21.0*70.0mm
Nominal voltage 3.6V
End-of-charge voltage 4.20V
End-of-discharge Voltage 2.50v
Typical Capacity 4000mAh (0.2C discharge)
Min capacity 4000mAh (0.2C discharge)
Weight Max:68g
Internal resistance Max:8mΩ
Standard Charge 2000mA,CCCV 100mA cut-off
Charging Time 3hours(standard charge)
Quick Charge Current 4000mA
Max Continuous Discharge Current 3500mA
Operating Temperature Charging, 0°C ~ 45°C
Discharging, -20°C~75°C
Storage    Temperature -5°C~35°C
Storage  Humidity ≤75%RH
Appearance Without scratch,distorion,contamination,
and leakage
Standard environmental condition Temperature:  23±5°C
Humidity   :45-75%RH
Atmospheric Pressure :86-106KPA

Please note: Due to the nature of this consumable product, no returns are allowed unless the product is defective upon shipping receipt.