Can you have multiple battery banks connected
asked
Hi I have a IP22 30amp 3 outlet charger and was wondering what the maximum ah you can connect in one battery bank 400ah 600ah 800ah?? Can someone please help as I cannot find anything in the manual
Each outlet serves a separate bank. The lower limit on bank size depends on the type of battery. For example, AGM & Gel are usually 0.2C maximum recommended charge current, but LFP is often 0.5C (or 2C at the expense of possibly reduced cycle life). A 30A charger needs at least 150Ah at 0.2C, or 60Ah at 0.5C. With configurable chargers, you can obviously limit the current to charge smaller batteries (if necessary).
The upper limit is not so strict. In practical terms, it's usual to aim for at least 0.1C (i.e. 300Ah on a 30A charger), so that you can charge in a reasonable period of time. If only shallow discharge & float service is needed, you could possibly go much larger.
