Translations:Charge controller/19/en

A PWM charge controller measures the voltage of the battery bank and the temperature (ambient or at the battery bank) to estimate the state of charge of the battery and regulate charging. This type of charge controller can only limit the amount of current that is supply to the battery bank and not the voltage of the battery bank or PV source. The PV source may be capable of operating at a higher voltage and supplying more power, but this type of charge controller does not offer this functionality.