Battery reached the end of its cycle life? Need that high setting but a single battery can't last long enough? Solve problems like these with the STEELMAN PRO 60660 Rechargeable 18650 Li-Ion 3.7V 2200mAh Replacement / Backup Battery. This lightweight power cell can replace either a dying battery whose charge cycles are used up or can be easily carried in a pocket or work bag and swapped out when the current battery's charge runs low so you can keep going longer. Designed with Li-Ion technology, this battery provides high energy density along with fast and efficient charging and a low self-discharge rate so they will always be ready for use. Compatible with the STEELMAN PRO 60720 Slim-Profile Motion-Activated Headlamp.
- REPLACEMENT OR BACKUP - Use to replace a failing, tired battery that has exceeded its charge cycle life or as a spare
- HIGH ENERGY DENSITY - Lithium ion design provides high energy density and fast, efficient charging
- LONG SHELF LIFE - Much lower self-discharge means the battery stays charged longer to be ready when needed
- LIGHTWEIGHT - Lighter weight that lead-acid batteries means carrying a spare won't weigh you down
- RECHARGEABLE - Button top, rechargeable design holds 2200mAh at 3.7V of power to keep you going
- COMPATIBLE LIGHT - Works with the STEELMAN PRO headlamp part number 60720