The maximum current that the solar panel can use to charge the battery
To select a charge controller, you'll need to calculate the maximum amount of current (in Amps) that the MPPT should be able to output. [PDF Version]
How big a battery should I use for a 90W solar panel
If you need 10 kWh daily, select a battery with a 12 kWh capacity, allowing for 80% depth of discharge. Grid-connected systems often need 1-3 lithium-ion batteries. [PDF Version]
Mozambique solar energy storage solar container lithium battery specifications
This paper presents the performance characteristics of 26 commercially available residential photovoltaic (PV) battery systems derived from laboratory tests. [PDF Version]