
Vapcell K40 4000mAh 21700 Battery
Featuring a flat top and a 30 Amp discharge rating, this battery is ideal for use with most regulated devices, particularly when a higher drain rate is required.
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: 21.3mm x 70.6mm +/- 0.2mm
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.
*The capacity and continuous drain rate in the specification above have been verified by Mooch, the most well-known independent battery tester. Since 2015, he has spent countless hours putting batteries through a series of tests to verify (and often debunk) manufacturer's claims about the true capabilities of the batteries we rely on to power our devices safely.