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Functions:1. CPU control, LCD display
2. Automatic recognition of input voltage
3. Applying with various types of durable batteries
4. Micro processing controller Pulse Modulation Wide-frequency PWM charge
5. Setting the voltage of low voltage cut-off/resuming connection of the DC output of the load port
6. Temperature sensor for charging a battery in compensation
7. Protective circuit of PV from reverse-charging.
8. Overload protection
9. Overcharge protection
10. Short circuit protection
11. The temperature compensate
12. Reverse polarity connection protection
13. Converse discharge protection
14. Thunder protection
15. Low voltage protection
