This is a generic, equivalent one, 100% compatible. This 3.7V 3400mAh Replacement Li-Ion battery is designed to compatible with Panasonic NCR-18650B NCR18650B. This battery is great for DIY use, or for repairing or upgrading an old worn out battery pack such as one from a laptop computer or other electronic device.

Specifications:
* Product Type: generic/equivalent
* Battery Voltage: 3.7V
* Battery Capacity: 3400mAh
* Chemistry: Li-Ion
* Size: 65.1mm x 18.3mm
* Max Current: 6.8A
* Max Charge Current: 1C (3.4A)
* Condition: new, 1 Year Warranty!

Please note that these are laptop grade cells designed for lower current use generally in the 0.1A-3A range, with a max recommended current of 2C or 6.8A discharge.

These are not to be confused with other 18650 High current cells designed for power tools.

These are highest capacity that is readily available for a 18650 cell.

Package Included:
1 x 3.7V 3400mAh Replacement Rechargeable Battery for Panasonic NCR-18650B NCR18650B