NCR18650B Lithium-Ion 3.7v 3400mAh Battery (PCB)

This is a brand new PANASONIC NCR18650B. The capacity is 3400mAh.

Please note that this particular version features a button top (+) terminal and is equipped with a PCB (protection circuit board) — both of which add a few millimeters in length to the the battery. 

Before purchasing, please make sure this particular style of battery will work with your intended device/application. Almost all flashlights will use a protected button top battery, just like this one. Certain medical devices, especially those with tighter tolerances, may only work with unprotected flat tops.

If you do not know, you can email us at support@taklite.com and we'll try to assist you