Battery Chemisty

Battery Chemisty

Cloud Solar supports lead acid (AGM) batteries by default.

The Cloud Solar charge controller does support alternative battery chemistries but the settings must be changed either by a technician or can be done remotely by one of the Inclusive Energy team.

If you would like the settings to be changed, please give the battery chemistry, number of cells (or nominal voltage) and the battery capacity in Ah.

The following battery types are supported:

DescriptionTypical No. of cells for 12V application
Flooded lead-acid battery6
GEL battery6
AGM battery6
Lithium batteries (3.2V nominal)4
NMC/Graphite Li-ion batteries (3.7V nominal)3
NMC/Graphite High Voltage Li-ion batteries (3.7V nominal, 4.35 max)3

Changing the settings to different battery chemistries changes the battery charging set points. Here is a summary of those set points:

DescriptionTypical No. of cellsAbsorption / Full (V)Bulk (V)Float (V)Low Voltage Disconnect (V)Low Voltage Reconnect (V)
Flooded lead-acid battery614.413.214.111.112.3
GEL battery614.413.213.811.112.3
AGM battery614.413.213.811.112.3
Lithium batteries (3.2V nominal)414.213.4N/A1212.6
NMC/Graphite Li-ion batteries (3.7V nominal)312.611.7N/A9.910.8
NMC/Graphite High Voltage Li-ion batteries (3.7V nominal, 4.35 max)313.0511.7N/A9.910.8

    • Related Articles

    • Can the meters work for systems without batteries?

      Unfortunately not. The Cloud Solar charge controllers use the power from the battery terminals to power on and therefore will not be operational without a battery. In the future we may adjust the hardware to allow for this operation, however allowing ...
    • Charge Controller Specifications

      PWM 12/24V 20A   Battery voltage 12/24V Auto Select Rated battery current 20A Nominal PV power, 12V <300W Nominal PV power, 24V <600W Maximum PV open circuit voltage 55V Maximum PV nominal  current 20A Operating temperature -10 °C to +50 °C Operating ...
    • What solar panels can I use?

      PWM charge controller With a PWM charge controller, it is important that you try to match the nominal voltage of a solar panel with the battery voltage of the system. Please use the reference table below: # cells in series Nominal Voltage  Open ...
    • System Configurations

        Input Voltage for the charge controller  The maximum open-circuit voltage of the solar array is 55 V with a maximum short circuit current of 20A. The charge controller supports a 12v/ 24v battery system, and we recommend the following ...
    • What’s the difference between PWM and MPPT?

      Both PWM and MPPT controllers are essentially switched mode, DC-to-DC power converters, that step down a high voltage from the solar panel side to match the charging requirements of a lower voltage battery pack. Both employ a pair of transistors that ...