Another difficulty in the structural design of AGV is the design of its power source device. The power of the power source directly affects the function of the AGV and the volume of the power sources will directly affect the volume and appearance of the vehicles. The storage batteries are selected as AGV power sources. Lead-acid batteries, nickel-zinc batteries, nickel-hydride batteries, and lithium-ion batteries are available. In addition to power, ampere-hours, power-to-weight ratio, volume, etc., the most critical factors are the length of charging time and ease of maintenance. Fast charging is high-current charging and professional charging equipment, so it must have a charging limit device and a safety protection device.

GTCAP supercapacitor battery is a new type of energy storage device. It has the characteristics of short charging time, wide operating temperature range, long service life, energy saving, and environmental protection. It is a new type of power energy storage element that has emerged with breakthroughs in material science in the past ten years. GTCAP supercapacitor battery is not only large in capacity but also light in weight. More importantly, it can be charged quickly to any potential within its rated voltage range and can be completely discharged. It has great advantages as a power supply for AGV.