Esmart 4 Series MPPT Charge Controller 100A 12V/24V/36V/48V Auto Working Max. PV 250V Intelligent Regulator with LCD Display for Lead-Acid and Lithium-ion Batteries

• Esmart 4 Series solar charge controller is small and exquisite in appearance, based on MPPT controller algorithm design, can quickly track the maximum power point of photovoltaic array in any environment
• support various lead-acid batteries, lithium batteries or other types of batteries, built-in various
• The protection function can be widely used in various fields such as RVs, communication base stations, household systems and field monitoring systems.
• Built-in lithium battery activated wake-up function.
• A variety of battery (including lithium battery) charging can be customized.
• Support host computer and APP remote monitoring.
• RS485 bus, unified integrated management and secondary development.
• Ultra-quiet air-cooled design, more stable operation.
• A variety of protection functions, small body is very useful.

• Install MPPT indoors. Prevent touch with components and do not allow water to enter the controller.
• controller connection sequence is Battery--Load--Solar Panel, and discounect the system in the reverse order Solar Panel--Load--Battery
• The MPPT positive power terminal is connected (common positive)
• A means of disconnecting all power electrodes must be provided. These disconnections must be included in the fixed wiring. Disconnect all power supplies before removing the controller wiring cover or repairing the wiring
• Notice：

1. Unplug the RTS, the temperature of battery will be set to a fixed value 25 ºC.
2. Please connect the inverter to the battery rather than to the controller, if the inverter is necessary.
3. The RS-485 port and RTS port is not SELV circuit, it must have isolation between the port and the place where the end user can access directly.

• The controller has a backlit LED display and function buttons. You can set the battery type with preset parameters.
• Simple button operation is more comfortable to use.

The selection of a solar controller follows two inequalities:

1. The maximum allowable open-circuit voltage of the controller > Open-circuit voltage of the solar panel > Battery voltage

2. Rated current of the controller > Power of the solar panel ÷ (Battery voltage + X) (X: Usually 1/12 of the battery voltage)

Esmart 4 Series solar charge controller：

Product Features:

wiring

How to Choose a Solar Controller with Appropriate Parameters？