Vapcell K40 21700 4000mAh Battery

Featuring a flat top and a 30amp discharge rating, this battery is ideal for use with most regulated devices.
Supplied in a protective case.

Specification

• Nominal Voltage : 3.7V
• Capacity : 4000mAh
• Lowest Discharge Voltage : 2.50V
• Max. continuous discharge rate : 30A
• Operating Discharge Temperature : -20 - 60 Degree Celsius
• Dimensions: 21mm x 70mm

Attention: These cells have much lower internal resistance than regular LiIon 3.7V cells and they may end up with a higher ending voltage when charged in some chargers. Please check the voltage of them using a volt meter right out of the charger to see if they are above 4.20V when fully charged with your charger. Overcharging above 4.25V may shorten life/cycles. Above 4.50V may even pop them or making them vent. DO NOT use the charger if it seems to overcharge IMR/INR cells. They should never be discharged below 2.5 volts or cycle life/performance will be reduced.

Packaging may vary from batch to batch.

Please read Lithium battery safety information before charging/using lithium batteries.

This product is only offered for sale within the UK due to shipping restrictions.