Features: 1Delayed Alarm Function: When the battery is in the under voltage state for 5?20s, this module will alarm and disconnect the output to maintain the safety and stability of the instrument. 2High Versatility: This battery protection board through the maximum current of 30A, static power consumption of 12mA, dynamic power consumption of 100mA, can be applied to the battery voltage of 12, 24, 36, 48V, universal. 3More Efficient: This battery protection board more efficient performance provides more practical results, improving the efficiency of workers and making the work process easier. 4Easy Carry: This battery protection board is very portable, you can carry it around with you at any time when you need it, and it can be easily stored when you don't need it, it won't take up too much space. 5Safe and Practical: This battery protection board is made of safe materials, exquisite craftsmanship, harmless to human body, can be used with confidence. Package included: 1 x Battery Protection Board