Vapcell K40 21700 4000mah 30A/45A Flat Top Rechargeable Battery Vapcell Sale! from 1249 1249 /per Qty. Add to Cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Vapcell K40 21700 4000mah 30A/45A Flat Top Brand: Vapcell Series: 21700 Model: K40 CDR: 30A Color: Brown Weight: 68g Chemistry: INR Type: Flat Top *** PRICE PER BATTERY *** Specifications: Model: K40 Size: 21.1*70.6mm Typical Capacity: 4000mAh (0.2C discharge) Min capacity: 3900mAh (0.2C discharge) Nominal voltage: 3.60V Max Continuous Discharge Current:30A Max Discharge Current: 45A with 80℃ cut End-of-charge voltage: 4.20V End-of-discharge Voltage: 2.5V Weight: 68g ( Appr) Internal resistance: 10mΩ ( Appr) (AC 1kHz) Standard Charge: 2000mA,CCCV 100mA cut-off Quick Charge Current: 6000mA Performance similar to Samsung 40T Tweet