NOTE? A. For the first 5 uses, use 1.2V NiMH battery charger to fully charge the battery. BEBAT battery has the best capacity after 5 cycles. B. If the battery is not used for a long time, charge it it fully every 3 months. AA BATTERY RECHARGEABLE 1200 CYCLES? BEBAT NiMH 2A battery can replace regular 1.5V Li-ion batteries or conventional hundreds of disposable double a batteries. STRONG RECHARGEABLE BATTERIES AA SIZE? BEBAT double AA batteries have a wide voltage range, support 1.1-1.45V (ordinary double A batteries only 1.1-1.2V), adapt to high performance equipment. HIGH CAPACITY DOUBLE AA BATTERIES? BEBAT AA rechargeable batteries 2900mAh has 20 more capacity than ordinary rechargeable AA battery. Meet your need for rechargeable Double A battery with large capacity. LONGER LIFE RECHARGEABLE AA BATTERIES? Even 3 years of non-use, BEBAT AA rechargeable batteries maintain a high capacity of 85 . In normal use, BEBAT high-powered aa battery rechargeable life reaches 10 years.