High Capacity: 8-pack of pre-charged AAA size rechargeable NiMH batteries for office or home use. 850 mAh, 1.2 Volts Device Compatible: For TV remotes, alarm-clocks, toys, mouse, thermometers, keyboards, toothbrushes, shavers & more Long Lasting: Can be recharged up to 500 times with minimal power loss. Provide consistent discharge performance Low Self Discharge: Maintain 80% capacity for 1 year due to leak-free design. Ideal to power household appliances Easy Use: AAA batteries ship in easy-to-open packaging For use at home, at the office, outdoors or while travelling Recyclable: These AAA rechargeable batteries can be recycled at end of lifecycle. Note: Appearance of batteries may vary NOTE: To avoid damage or undesired rapid discharge of the batteries, DO NOT MIX: non-rechargeable with rechargeable batteries; fully-charged with mid- to low-charged batteries; new with old batteries; different mAh capacities; different brands Ni-MH Battery Tips: Verify device compatibility with 1.2V Ni-MH batteries. Runtime may be shorter than 1.5V alkaline batteries. Check proper fit as Ni-MH batteries are slightly larger than alkaline batteries to comply with IEC standards. Replace all batteries simultaneously and consult the device manual for specific requirements. Charger Tips: Use only Ni-MH specific chargers with independent charging channels and voltage monitoring to prevent overcharging or undercharging. Avoid timer-only chargers and never use chargers designed for other battery types (like NiZn or Li-ion), as this may cause damage or leakage.