Hope not a repost - Electrical e-bike guru question?

Maka

New Member
Region
USA
I have found the e-bike for me. Question, I sort of know electrical stuff, but just enough to be dangerous! If the bike I want to buy has a 48V 16 Ah battery..... If I want to add a second battery to increase range. From "what I know". If I buy the exact same battery and hook it in parallel all "should be fine". What are the probable consequences of buying a secondary battery that is not an "exact match"? will one battery hurt the other? Will it fry the controller in not exactly the same Amperage / voltage? Your advice would be greatly appreciated!!
Thanks, Maka
 
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