Amazon Basics 4-Pack Rechargeable AA NiMH High-Capacity Batteries, 2400 mAh, 1.2V, Recharge up to 400x Times, Pre-Charged

Additional Details from the Manufacturer

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More features

• RELIABLE PERFORMANCE: 4-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 70% capacity for 6 months and 50% capacity for 12 months
• EASY USE & STORAGE: Has a shelf-life up to 5 years 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.