1.2V. DX2400. 850 mAh. No. 1 trusted brand. Guaranteed to last 10 years (or up to 400 recharges, whichever comes first). Precharged and ready to use. Recharge batteries up to 400 times. Batteries work in any NiMH charger. For best results, recharge with Duracell NiMH chargers. Guarantee: If not completely satisfied with this NiMH battery product, call 1-800-551-2355 (9:00 AM-5:00 PM EST). Duracell guarantees these batteries against defects in materials and workmanship. Should any device be damaged due to a battery defect, we will repair or replace it at our option. www.duracell.com. Made in Japan.