Hi everyone I'm John from Lincoln and got into electric bikes a couple of months ago and got the bug lol. I commute to work daily at 4am all the way on a nice empty cycle track and then across a field I have 60v at 18ah on my back wheel and 48v at 20ah on my front wheel with a nice big 48v light for an off road car so I can see really well. Acceleration is amazing with all wheel drive but yet again I've bought another 60v 15ah battery as im sad and obsessed or just mad as a hatter so my question is do I just add it to my rear 60v battery for more ampage or swap it to my front for that little bit of extra speed as I'm slightly concerned of adding different ampages together as I think it could slowly destroy the lower ampage battery but unsure on that so any help would be appreciated