Single Phase 180-260V AC Input Smart Solar LiFePO4 Battery Charger

The charger is an AC to DC charging module. It has the advantages of wide constant power voltage range, high efficiency, high power factor, high power density, minimal electromagnetic radiation and interference, and high reliability to meet the fast charging needs of various batteries. ,Energy saving and environmental protection.

Off-grid solar energy systems is mainly composed of photovoltaic modules, controllers, inverters, batteries and other accessories The working principle of the solar panel system is that the photovoltaic module converts light energy into direct current, and the direct current is converted into alternating current under the action of the inverter, and finally realizes the power consumption function. It can be for Home applications, Commercial applications and Industrial applications. Inverter power: 5kW AC output voltage: AC110V/120V Battery voltage: DC24V or DC48V Battery type: Gel battery or LiFePO4 battery Solar panel type: Mono or poly Compatible with grid and generator Monitor: WIFI or GPRS

The off grid solar inverter can be put outside and work without battery. Both solar panel and grid are connected to the inverter, solar is priority, grid will be backup. It is very suitable for such situation: loads work at daytime, with grid connection. Electricity bill can be saved a lot. The inverter power range can be 5kw to 500kw.

Such hybrid solar system can work as both solar on grid system and solar off grid system. It can utilize electricity price difference, charge battery at low price and discharge at high price to maximize system profit, compensate local transformer limit. It can  provide back-up power supply for unstable grid, during grid failure, seamless switches to off-grid mode within 20ms to realize uninterruptable supply

The on grid solar power system converts the solar energy into electrical energy, without the storage battery, and directly sends the electrical energy to the grid through the grid-connected inverter. Inverter power: 8kW AC output voltage: three phase Solar panel type: mono or poly

Characters Transformerless with three level topology Max efficiency up to 98.6% Dual MPPT inputs accommodating wide voltage range Compact structure design Complete protection function such as anti-islanding, short circuit, overload Easy installation and free maintenance WiFi or GPRS (optional) communication Component brands Specification Model No ST17KTL ST20KTL ST25KTL DC side/Input parameters Max. DC power [W] 18500 22000 25000 Max. DC voltage [Vdc] 1000Vdc. 1000Vdc. 1000Vdc Min. System start/Shut down voltage [Vdc] 250 250 250 MPPT voltage range[Vdc] 250~850 250~850 250~850 Max. input current [A] 25A*2 25A*2 25A*2 Number of MPP trackers 2 2 2 Strings per MPP tracker 2 2 2 AC side/output parameters Nominal output power [W] 17000 20000 25000 Maximum output power [W] 18500 22000 27000 Nominal output voltage/range [V] 400V/ 280-490V（adjustable) AC grid frequency/range [Hz] 50Hz,60Hz(auto-selection) / 44Hz-55Hz; 54Hz-65Hz Maximum output current [A] 25 30 36 AC connection(with PE) 3W/N/PE 3W/N/PE 3W/N/PE Current distortion(THDi) [%] <1.5 <1.5 <1.5 Power factor [%] >99.95 >99.95 >99.95 Efficiency Maximum conversion efficiency[%] 98.5 98.6 98.8 European efficiency[%] 98.1 98.2 98.3 MPPT efficiency[%] 99.9 99.9 99.9 Safety and protection yes DC reverse-polarity protection yes Anti-islanding / Overvoltage protection yes Short circuit protection yes Leakage current protection yes Grid monitoring / Ground fault monitoring yes DC/AC side varistors(thermally protected) yes General Parameters Dimension(L/W/H)[mm] 505*525*245 Weight (kg) 37 Embedded DC Switch Optional Night power consumption[W] <0.2 Isolation type Transformerless Protection degree IP65 according to IEC60529 Operation temperature[ºC] -25 ~ 60 Cooling concept Natural convection Acoustic noise level[dB] <25 Operating altitude[m] <2000 without power derating Display Graphic LCD Communication Interface Standard WIFI; GPRS(optional) Certificates and Approvals CE-(EMC/LVD) : EN(IEC) 61000-1/-2/-3/; EN(IEC) 62109-1/-2;IEC 61727/62116;G83-3/G59-3; EN50438;VDE-0126-1-1;VDE-AR-N4105;AS4777.2;AS4777.3 Projects

Off-grid or hybrid optional 6KW inverter, Max 3pcs in parallel Grade A battery cells, up to 6000+ cycles 5.5KWh battery, Max 12pcs in parallel Easy to install, combined freely BMS & battery capacity auto-sense WiFi/GPRS remote monitoring (optional)

What is off grid system? Off-grid solar energy systems are also called stand-alone solar systems. It does not connect with Grid or called Utility. It is very popular and suitable for remote areas where there is no public power or Public power is instable.It can be for Home applications, Commercial applications and Industrial applications. The off-grid solar energy system can be 1kW/2kW/3kW/5kW/10kW/12kW/16kW/20kW/24kW/30kW/50kW/80kW/100kW/120kW/ 150kW/200kW/Customized off-gid power system Off-grid system is suitable for areas without grid-connected or unstable grid-connected power. Off grid system is usually composed of solar panels, connector, inverter, batteries and mounting system. Description of 15kW solar panel system: Inverter power: 25kW AC output voltage: AC110V/120V Battery voltage: DC24V or DC48V Battery type: Gel battery or LiFePO4 battery Solar panel type: Mono or poly Compatible with grid and generator Monitor: WIFI or GPRS