20A Solar Charge Controller Intelligent Battery Regulator for Lead Acid & Lithium Battery with 3A USB Port

The amiciSmart Solar Charge Controller is an intelligent battery regulator designed to efficiently manage solar charging for both lead-acid and lithium batteries. This upgraded model features a heat sink for improved thermal performance and a 3A USB port for convenient device charging.

Engineered for smart solar systems, it automatically regulates battery charging and displays the charging status clearly on its LCD screen. With multiple protection features—including overload, short circuit, open-circuit, and reverse polarity protection—it ensures safe operation and extends your battery’s lifespan.

Compatible with all major battery types, users can select the correct mode for their setup: B1 for lead-acid, B2 for Li-ion, and B3 for LiFePO₄. For reliable performance, always connect the battery first, followed by the solar panel, as incorrect connection order may prevent operation.

Easy to operate and installation:

Wiring STEPS: Screw the adjustment screw counter-clockwise until the plates move down. Insert the wire into the new opening between the plate and the "top" of the Terminal hole, not under it. Screw the adjuster clockwise and the plate will move upwards thereby squishing the wire in the Terminal hole.

Installation STEPS: Connect the system in the order of Battery > Load >PV Array in accordance with Figure, and disconnect the system in the reverse order.

Note:
1. Please keep it in cool and well ventilated place to maintain good heat dissipation.
2. The regulator is only suitable for lead acid batteries: OPEN, AGM, GEL, not for nickel hydride, lithium, ions, or other batteries. 
3. Make sure your battery has enough voltage for the controller to recognize the battery before first installation.
4. The working temperature of this controller is -35°C to 60°C, during hot sunny days, the temperature outside might go up to 60-75°C. Please do keep the controller stay in cool and well-ventilated place to maintain good heat dissipation.

Specification:

*Watt voltage: DC 12V/24V Auto
*Over discharge Protection: 10.7V/21.4V
*Charge recover voltage: 12.6V/25.2V
*Overcharge Floating charge: 13.7V/27.4V
*Over discharge Protection: 10.7V/21.4V
*Equalization: B01: sealed 14.4V / B02: Gel 14.2V / B03: flood 14.6V