Nice work, I have the same scooter and I also Li-ion swapped mine, but I opted for a 36V 10AH pack and my total build cost was $150 (mine was pulled from a dumpster with equally dead lead acid packs). Best I've managed was 22.5MPH, and my range is 20 Miles. I snagged a new JETECH OEM battery meant for a TurboAnt e-Bike for $100 off eBay, then I modified a MotoTec Chaos XLR charge port to accommodate Li-ion charging by re-soldering the negative lead from the bottom pin to the open side pin, and made my own charger by getting a 42V Li-ion charger with a barrel style jack, cutting the barrel off, then soldering my own XLR jack. The 800W speed controller also needed some modification for fitment: I cut the housing in half, then made a new cover plate from an old license plate and some tin snips, ground down the rough edges, screwed the new cover plate on, then ran a bead of hot glue around the enclosure to improve weatherproofing. I also used a bit of foam utility mat to cushion the underside of the battery; that battery is a snug but perfect fit. I'm frankly surprised you got that motor to run 48V without burning up... then again, I know it handles 36V just fine, even after long runs I can rest my hand on the motor and not get burned. Toasty, not quite blistering. It's fun seeing someone else' approach to the same problem, and you've done well. Thanks for posting!
Thanks for the feedback, it sounds like you had as much fun as I did bringing new life to these old scooters. At full charge, I am at 54V. I still need to do a range test to see how far I can get on a single charge. But I am concerned about running it continuously from 100% and how hot it might get. We'll see what happens.
Nice work, I have the same scooter and I also Li-ion swapped mine, but I opted for a 36V 10AH pack and my total build cost was $150 (mine was pulled from a dumpster with equally dead lead acid packs).
Best I've managed was 22.5MPH, and my range is 20 Miles. I snagged a new JETECH OEM battery meant for a TurboAnt e-Bike for $100 off eBay, then I modified a MotoTec Chaos XLR charge port to accommodate Li-ion charging by re-soldering the negative lead from the bottom pin to the open side pin, and made my own charger by getting a 42V Li-ion charger with a barrel style jack, cutting the barrel off, then soldering my own XLR jack.
The 800W speed controller also needed some modification for fitment: I cut the housing in half, then made a new cover plate from an old license plate and some tin snips, ground down the rough edges, screwed the new cover plate on, then ran a bead of hot glue around the enclosure to improve weatherproofing.
I also used a bit of foam utility mat to cushion the underside of the battery; that battery is a snug but perfect fit. I'm frankly surprised you got that motor to run 48V without burning up... then again, I know it handles 36V just fine, even after long runs I can rest my hand on the motor and not get burned. Toasty, not quite blistering.
It's fun seeing someone else' approach to the same problem, and you've done well. Thanks for posting!
Thanks for the feedback, it sounds like you had as much fun as I did bringing new life to these old scooters. At full charge, I am at 54V. I still need to do a range test to see how far I can get on a single charge. But I am concerned about running it continuously from 100% and how hot it might get. We'll see what happens.