GP Batteries GP Recyko+ AA Rechargeable Batteries NiMH 2100mAh 4-Pack

Ready to use, pre-charged rechargeable batteries with 500 charge cycle life. Offers reliable performance in temperatures between -20 to +50C. Low self-discharge rate, retains up to 80% charge after 12 months. For use with B631 universal charger (sold separately). Pack equivalent to 3000 single-use batteries (tested vs. GP Super alkaline batteries in photo flash, verified by independent lab). Pre-Charged Recharge up to 500 Times Retains up to 80% Charge in Storage Works Between -20 to +50C - Manufacturers part number: 545RM