4inch Touch Screen 
Advantages - Stack design , wheels can be removed, easy to install.
- Integrated dangerous goods standard packaging, safe and conveni
- Using lithium iron phosphate new A grade original battery pack, the cycle life is up to 12000 times, and the life span is more than 30 years.
- Dust-proof structure design, DC output, safe and reliable. The BMS compartment is easy to replace.
- Integrated dangerous goods standard packaging, safe and convent transportation.
