Product parameter Size: 238 *170* 76mm USB output: 5V/2.4A Capacity: 32000 mAh Product output: 12V/24V dual start Product life: >3000 times Input: suitable for 12VDC/2A Limit temperature:-20~ 60°C Charging time: 8 hours 12V starting current: 300A 24V starting current: 500A 12V peak current: 600A 24V peak current: 1000A