Battery is one of the most important part in the full solar system. after we learn battery lifetime management and algorithm then it will help us know how to choose the most suitable battery and solar controller MPPT type for our system.
Battery Lifetime: intelligent battery management
Conventional battery management
When a solar charge controller
is not able to recharge the battery to its full capacity within one day, the result is often that the battery will be continually be cycled between a "partially charged" state and the "end of discharge" state. This mode of operation (no regular full recharge）will destroy a lead-acid battery within weeks or months.
Battery Lifetime algorithm
The Battery lifetime algorithm will monitor the state of charge of battery and day by day slightly increase the load disconnect level until absorption voltage is reached. From that point onwards the load disconnect level will be modulated so that absorption voltage is reached about once every week. The Battery life algorithm will substantially increase service life of the battery.