... . 2. Rechargeable battery Different types of rechargeable batteries, such as lead-acid batteries, nickel cadmium batteries, LiFePO4 batteries are used for Changhong solar PV power ... 80WP, 2 sets3. Ni-cad rechargeable battery or free maintenance lead acid battery, 12V/100Ah, 2 sets4. Output: 12V/8A and ...