Cat 750mAh Variable Voltage 510 Thread Battery, Purple

Details

Voltage Variety: Five smart settings (2.4V–4.0V) make it adaptable for a wide range of carts
Proven Compatibility: Standard 510 thread plays nice with nearly every cart on the market.
All Day Energy: 750mAh battery delivers on the promise, quick to charge, built to last, priced to move.