VMAX USA specializes in the manufacturing of high quality AGM Deep Cycle batteries. These batteries offer superior performance and 8-10 years life span in float mode. Please visit FAQ tab at the vmaxtanks website for service, charging and storage instructions. A battery calculator is also available to calculate number of batteries needed for your specific AC or DC power requirements. VMAX batteries come with VMAX labels and a VMAX hot stamp on top of battery. Warranty: 12 Months if purchased through bargainshore- VMAX Authorized Amazon Seller. VOLTS 12V AMP HOURS 125AH WEIGHT 75LB SIZE : L=12.9" W=6.8" H=8.7" MAX. CHARGING CURRENT: 30A MAX. CHARGING VOLTAGE: 14.7V RECOMMENDED: 12A, 14.5V CHARGER: SMART/MICROPROCESSOR CONTROLLED CHARGER BCI Group Code: 31