I have an older electric bike, it's a 2011 Trek FX+ series with a small Bionx brand battery on the back, and I'm looking to potentially solder in a larger battery on it that I got from a broken electric skateboard, I just I don't want to fry anything from overpowering it. Here are the specs of the batteries;
Electric Skateboard Battery
Lithium Iron Phosphate
I really am uncertain of what the main concerns are with a project like this...Is it the voltage difference or the amperage difference that matters most? Obviously what I want to avoid is overloading the battery or components and making it burst into flames... As cool as that may look going full speed down a hill...