LONG CYCLES: Rechargeable AA batteries can be charge-discharge up to 1000 times. We add mix-protection additive to the cathode of batteries, protect the material from degradation in the progress of charge and discharge. ENVIRONMENTAL PROTECTION: Doesn't contain Hg/Cd/Pb, makes no pollution to the environment, makes no pollution to the environment. The AA 800mAh cells using special steel shell which can protect the battery against explosion due to over pressure. MUTIPLE USES: Can be widely used for battery outdoor christmas solar lanterns, solar powered christmas led jack-o lights, christmas hot air balloon solar lantern, solar christmas gift, solar string lights, landscape path lights, light up jack o lantern pumpkins, decorative fences, solar fence lights, solar lantern, solar ground lights, toys, TV remotes, flashlights, wireless mouses, portable audio players, game controllers, smart home devices, digital cameras, and other everyday electronics NOTICE: Batteries are precharged and ready for use, but only charge 30-50% for safety delivery, Not a quality problem if you get batteries with no power. So please fully charge first before use. INCLUDING: 1.2 volt 800mAh AA solar batteries rechargeable,Package included: 4 x AA solar battery 1.2v ni-mh aa 800mAh. LONG CYCLES: Rechargeable AA batteries can be charge-discharge up to 1000 times. We add mix-protection additive to the cathode of batteries, protect the material from degradation in the progress of charge and discharge.