Amazon Basics Rechargeable AA Batteries, 16-Pack, 2400 mAh, NiMH High-Capacity.

* RELIABLE PERFORMANCE: 8-pack of AA rechargeable NiMH batteries (2,400 mAh) * DEVICE COMPATIBLE: Ideal for devices with high power or continuous drain like game controllers, wireless devices, toys, and more * LONG LASTING: Can be recharged up to 400 times with minimal power loss * LOW SELF DISCHARGE: Maintains 50% capacity for 1 year * EASY USE & STORAGE: Shelf-life up to 5 years; great for everyday or emergency use; arrives pre-charged and ready to use * 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.