Product Details:[list][*]Long-Lasting Power:Up to 1300 recharges with 1100mAh high capacity≈2000 Disposable Batteries[*]Low Self-Discharge:Stable volatge output,maintains 80% of capacity after 3 years of non-use[*]Enhanced Safety: Advanced safety structure design to prevent damage or explosion.Rechargeable aa batteries have passed 10 professional safety tests[*]Eco-Friendly & Pre-charged: Pre-charged at the factory using solar energy. Mercury, lead and cadmium free