Docooler 20A 12V/24V Solar Charge Controller is a PWM charge controller that prolongs battery life by automatically preventing the battery of a small solar system from:
- over discharging
- reverse discharging during the nights or when there is a lack of sunshine
This Docooler 20A 12V/24V Solar Charge Controller keeps battery always fully charged and in optimal shape.
It has built in short-circuit protection and reverse polarity protection.
The controller is very easy to connect and use.
It can be used with solar power system with 12V or 24V nominal voltage.
1 * Solar Charge Controller
1 * User’s Manual (English)
How many solar panels can you connect to this solar charge controller?
As per standard’s recommendations the rated charge controller current should be equal to or greater than 1.56 times solar panel/solar array short circuited current:
Ichargecontroller [A] ≥ 1.56*Isc
Therefore, this solar charge controller is suitable for a solar panel or solar array with rated short circuit current no more than 12.8A.
However, you can make a compromise and use this charge controller for solar panels based on this formula:
Ichargecontroller [A] ≥ 1.25*Isc, i.e for a solar panel/ array with 16A short circuit current. Nevertheless, we don’t recommend this usage because it violates the recommendation of the standard.