HIGH ENERGY STORAGE - Tenergy 250mAh NiMH 9 volt rechargeable battery has 4 premium rechargeable batteries. An ideal replacement for any standard 9V size batteries or disposable everyday 9V alkaline batteries for smoke detectors/fire alarms, microphones, cameras, TENS unit, medical equipment, guitar pedal/pickup, electronic toys, walkie-talkies, and other electronic devices. Dimensions of our 9V rectangular battery is 48x26x16mm (H x L x W).

RELIABLE PERFORMANCE - Power your outdoor devices all year long in any season. Tenergy 9V NiMH batteries deliver optimal performance in the winter when temperatures are as low as 14°F (-10°C) or in the summer when it's as high as 122°F (50°C). Recharge the premium 9 volt batteries with an incredible cycle life up to 1000 times.

LASTING CAPACITY WITHOUT MEMORY EFFECT - With no memory effect on our Tenergy Premium rechargeable batteries 9 volt, recharge your 9V household batteries anytime. Even if they are only partially drained, the batteries will still recharge to the full capacity for every use.

ECO-FRIENDLY & MONEY SAVING - Being one of the most cost-effective batteries, Tenergy 9V cells recharges up to 500 times and will eventually pay for themselves after 10 cycles. By reusing batteries, you are reducing your carbon footprint and the waste caused by one time use 9V batteries. Switch over. Save. Reuse. Recharge with Tenergy.

TENERGY PROTECTED - Our premium 9V everyday battery holds European RoHS (Restriction of Hazardous Substances) compliant certifications. Backed with a 12-month extended warranty and lifetime support from our friendly and knowledgeable customer service.