Product Description Is it a smart device: Yes Customization: Yes Maximum Current: MPPT 40A 30A Model: Tracer AN Series Application: Charge Controller, Voltage Controller, Lighting Controller, Solar System Controller, Solar Workstation Name: PowMr:: CE Battery Type:: Lead-acid and lithium-ion battery systems Nominal voltage:: 12V 24V Automatic maximum current:: 40A/30A Battery voltage range:: 8~32V Ground:: Common negative pole max. PV Open Circuit Voltage: : 100V Type: : mppt Solar Charge Controller Type 2: : Solar Charge Controller EPEVER Tracer MPPT 40A 30A Solar Charger Controller LCD 12V24V Automatic High Efficiency Regulator Solar 4210AN 3210AN Support Li Specifications: 1) Multiple loads Control mode: manual control, lighting on/off, light on + timer 2) Advanced maximum power point tracking (MPPT) technology, efficiency not less than 99.5% 3) Wide MPPT operating voltage range 4) Accurate identification and tracking of multiple powers Point 5) LCD display design, dynamically display the operating data of the tool 6) Can be monitored through PC and connected to an external monitor to achieve real-time data viewing and parameter setting 7) Charging power and current limiting function 8) PV short circuit/PV reverse polarity/battery Overvoltage 9) Battery over-discharge/battery reverse polarity/load overload protection When the charging current or power of the photovoltaic array exceeds its rated current or power, charging will be performed at the rated current or power. Note: When photovoltaic modules are connected in series, ensure that the open circuit voltage of the photovoltaic array does not exceed the rated current or power. Do not exceed "Max. PV Open Circuit Voltage" rating. Otherwise the controller may be damaged. (VOC should not exceed 92V) Battery type selection: lead-acid (colloid, sealed, liquid-rich) and lithium batteries, the voltage parameters can be set on the controller on the panel (for BCV, FCV, LVD, LVR, when the battery type is "USE" users can modify them on the local controller.) How to program lithium batteries Set the battery type (LiFePO4 (4S/8S) and Li(NiCoMn)O2 (3S/6S/7S)) via LCD via PC (requires RS485 Accessories), through mobile phone APP Steps: Connect the system in the order of 1. Battery --> 2. Load --> 3. Photovoltaic array, and then disconnect the system in the reverse order 3. 2. 1. Without battery /Never connect the solar panel array to the controller before. The battery must be connected first. Do not connect any inverter/wind/alternator or charger to the solar charge controller. If the remote temperature sensor is not connected to the controller, the battery charging or discharging temperature defaults to 25°C without temperature compensation. Wire diameter is for reference only. If there is a long distance between the PV array and the controller or the controller and the battery, larger wires can be used to reduce voltage drop and improve performance. If the photovoltaic array is connected reversely to the controller, the power (watts) from the photovoltaic array that is 1.5 times the controller rating will damage the controller. photo: