... improve its reliability. 2. Rechargeable battery Different types of rechargeable batteries, such as lead-acid batteries, nickel cadmium batteries, LiFePO4 ... 3 Capacity of rechargeable battery 12V/15Ah; 4 Load type: 5W or 15W LED light CHB2480 household solar PV power ... solar panel 80WP, 2 sets3. Ni-cad rechargeable battery or free maintenance lead acid battery, 12V/100Ah, 2 sets4. Output: 12V/8A ...