My pack went a year or two ago. My previous battery was an 11ah custom trangular LiFePo4 pack. I loved the weight distribution but I wished it was larger. My 12ah pack barely got me 13 miles (hilly around here). It was a 52 volt pack and slowed to 17mph up hills. My sister borrowed the bike, dumped it, and left it "on" in the cold for 3 months. I was unable to repair it due to its welded nature.
I'm buying a chunk of land about 15 miles from work and near some trails so i've decided it's time to fix my ebike! I want my next battery to be larger, easier to repair, and if possible not heavier. I plan on taking the new bike trail riding so it must be durable. I want/need to have ~30 miles range. I'd like to upgrade to 72+ volts for safety. So 30+ ah @~77v without load.
My nine continent motor used to get fairly warm on hills - unbearable after 5 seconds of contact. I'm thinking about upgrading it or buying a second motor and putting this on the front wheel (attached to aluminum forks). Am I crazy for wanting more than 72v? Should I consider a geared setup?
I'm leaning towards getting whatever i can for my charger and buying an ebikes.ca adjustable charger (cycle analyst was a godsend). Does anyone know if i can modify my charger for 72v? I'm debating between screw in place round screw cell LiFePo4, prismatic cell Li Ion (gets expensive), or an array of Hobby king Li Ion batteries. I work about the screws coming loose with cells. The size/weight and cost is also off-putting. The HK batteries look appealing - plus their cheap. Does anyone have BMS recommendations? I may be able to have a friend 3d print a mount for the cells/packs. Also considering upgrading to something full suspension with disc brakes for this new build.
On another note, does anyone know of a good way to limit power with the flip of a switch to meet legal regulations - is this just something i need to create and can't buy? :/
I'm envisioning a bike i can plug in for a fast charge then ride to work or on a trail with a 40 mile range.
I'm buying a chunk of land about 15 miles from work and near some trails so i've decided it's time to fix my ebike! I want my next battery to be larger, easier to repair, and if possible not heavier. I plan on taking the new bike trail riding so it must be durable. I want/need to have ~30 miles range. I'd like to upgrade to 72+ volts for safety. So 30+ ah @~77v without load.
My nine continent motor used to get fairly warm on hills - unbearable after 5 seconds of contact. I'm thinking about upgrading it or buying a second motor and putting this on the front wheel (attached to aluminum forks). Am I crazy for wanting more than 72v? Should I consider a geared setup?
I'm leaning towards getting whatever i can for my charger and buying an ebikes.ca adjustable charger (cycle analyst was a godsend). Does anyone know if i can modify my charger for 72v? I'm debating between screw in place round screw cell LiFePo4, prismatic cell Li Ion (gets expensive), or an array of Hobby king Li Ion batteries. I work about the screws coming loose with cells. The size/weight and cost is also off-putting. The HK batteries look appealing - plus their cheap. Does anyone have BMS recommendations? I may be able to have a friend 3d print a mount for the cells/packs. Also considering upgrading to something full suspension with disc brakes for this new build.
On another note, does anyone know of a good way to limit power with the flip of a switch to meet legal regulations - is this just something i need to create and can't buy? :/
I'm envisioning a bike i can plug in for a fast charge then ride to work or on a trail with a 40 mile range.