With the continuous improvement of the functional requirements of electric tricycles, traditional single-power tricycle batteries can no longer meet users' diversified power supply needs in daily travel and work. Drivers often need to charge mobile phones, Bluetooth headsets, driving recorders, small fans, and other mobile devices during driving, while there is no dedicated power supply interface on ordinary tricycles, resulting in inconvenient device charging. Tricycle batteries with USB output break the single power supply mode of traditional batteries, integrating stable 5V USB output function on the basis of ensuring normal power supply for tricycle driving, realizing one battery for multiple uses, which greatly improves the practicality and convenience of electric tricycles, and is widely favored by delivery drivers, rural commuters, and long-distance travel users.

The built-in USB output module has stable performance and strong compatibility. This tricycle battery is equipped with a professional intelligent step-down USB power supply module, which converts the high-voltage power of the tricycle battery (60V/72V) into stable 5V low-voltage direct current, fully adapting to the charging voltage and current standards of most mobile electronic devices on the market. The USB interface supports fast charging and stable constant-current and constant-voltage output, which can charge mobile phones, tablets, smart watches, driving recorders, and small portable electrical equipment normally. Different from the external USB conversion connector which is easy to heat and unstable, the built-in module has over-voltage protection, over-current protection, over-heat protection, and short-circuit protection, with low heat generation during operation and more stable output, which will not cause damage to electronic devices due to voltage and current fluctuation.

Independent power supply design does not affect the normal driving of the tricycle. Many users worry that the additional USB output function will consume vehicle power and affect the cruising range and power performance of the tricycle. This multifunctional battery adopts an independent power supply loop design for the USB output part, which is separated from the driving power supply loop. When using the USB interface to charge external devices, it will not occupy the driving power output, will not cause power attenuation and power weakness of the tricycle, and has no impact on the normal driving, climbing, and load performance of the vehicle. At the same time, the USB module has an intelligent power-saving function, which automatically enters the standby power-saving state when no external device is connected, with almost no standby power consumption, effectively avoiding invalid power loss and ensuring the endurance performance of the tricycle is consistent with that of ordinary batteries of the same specification.

Humanized interface design and wide application scenarios improve user experience. The battery is equipped with a hidden waterproof USB interface, which is equipped with a waterproof rubber plug to prevent dust and rainwater from entering in daily use, adapting to outdoor complex environments such as rainy days and dusty rural roads. The interface supports plug-and-play operation, simple and fast, no additional wiring and modification required. It is very practical for takeout and express delivery drivers who need to keep their mobile phones powered on for a long time, rural users who travel long distances, and tricycle drivers who work outdoors for a long time. It solves the problem of dead mobile phones during outdoor work and travel, improves travel safety and work efficiency, and realizes the integration of vehicle power supply and daily mobile device power supply.