ALLPOWERS Dual USB 20A Solar Charge Controller 12V/24V Auto Paremeter Adjustable PWM LCD Solar Controller Regulator with Load Timer Setting ON/Off Hours;

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Change the default setting of solar controller, requires:
1. Disconnect the solar panel
2. ensure the remain voltage of battery no less than 12V

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>Indoor use only: 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. <5>When the battery voltage is too low, the controller will stop output(≦ 8V, controller turn off itself, LCD is blank,≦ 10.7V, 12Voutput ports are not available); after the solar panels charging, the battery will return to 12.6 V. It is a natural to output.

Warm Tips:
Only voltage reading in the screen of the solar controller, no amps or amp hours.

Specification:
*Voltage: DC 12V/24V
*Self-consuming: 10mA
*Rated Charge Current: 20A
*Rated Load Current: 20A
*Over Charge Protection: 14.4V/28.8V
*Over Charge Floating Charge: 13.7V/27.4V
*Charge Recover Voltage: 12.6V/25.2V
*Over Discharge Protection: 10.7V/21.4V
*Over Discharge Recover: 12.6V/25.2V
*USB Output: 5V/3A
*Operating Temperature: -35℃-60℃
*Size:150 * 78 * 35mm / 5.9 * 3 * 1.4in

Warm Tips: Wire Range 26-10 AWG(4.0mm²)