Hi there the ebay person I bought this off on described I need a 48v 11.6ah nominal battery but doesn't answer when I've asked what's the maximum battery pack of a 48v I can use, I'm looking at a 48v 13ah an a 48v 15ah with no response. Anyone that has bought an used this exact one would appreciate all info an advice. Regards Lee
If I understood you correctly, you want a "LARGER" batter, one that will power your bike for longer, am I correct.
Batteries are measure in Amp Hours for the amount of power they store.
Just about any 48 volt battery, that can be physically carried by your bike, and either have, or made to have, the correct connectors, with the correct polarity, will do....
If you have the old battery still, maybe it can be re-celled by a local battery company (assuming the cells are defective), and if you are lucky, the case might be large enough for extra cell(s) for each "tier" of cells, to give more capacity for you.
If I have misunderstood you, please state more clearly what you are looking for.
Andy