... hand operation and test mode and load open all time.3.And have temperature compensation function.4. The storage battery is ... status.8. Over charging protection, over discharging protection, over load, short circuit protection, reverse polarity protection and TVS lightning ... ×2/24V; charge return voltage 13.2v;×2/24V;Temperature compensation-5mv/°C/cell (Boost charge, Direct charge, Float charge, ...