Xingyue X1/SeeyesDMB09A moped LiFePo4 pack build

General Discussion about large electric scooters and motorcycles and other things with no pedals.

Xingyue X1/SeeyesDMB09A moped LiFePo4 pack build

Postby evo1087 » Sat Aug 12, 2017 5:18 am

IMG_6647 LR.jpg
IMG_6647 LR.jpg (165.33 KiB) Viewed 104 times

Recently I made a pack with These LiFePo4 cells. Check out my pictures here.
I made modules in 6s. each stack is 16s and I have 4 stacks for a 60V 22ah pack. I am using the SLA "on board charger" ( I just keep it in the storage box) and a SDT SC620 with PSU to balance. No BMS because the project was just a test to see if I could make something and the results were good. I Improved range to 40 miles it was like 20 before that. The handling was what surprised me the most, it is so much better with 1/3 the battery weight I had before.
The cons are the voltage drop is pretty bad and they are hard to access for balancing because they are deep in the bottom tray. My modules and wiring are sketchy to say the least...borderline dangerous.
My new goal it to try to find LEAF modules for < $55 (its possible just saw a battey pack sell for $2500). I need 8. My weight will be the same as with SLAs again, but the range will be 60-70 city miles on a charge and much less voltage drop. Hitting the voltage cutoff is so annoying. I should be able run full throttle with the leaf modules for an hour, 2/3 longer than present. This guy put some in his moped. They take up the whole storage space they come out easy by the looks of it. I have a rear storage bin so that helps and surf rack haha. Soooo got any leaf cells? or need advice on making a quick and easy but potentially dangerous pack?
9c Module 6S.jpg
9c Module 6S.jpg (124.28 KiB) Viewed 46 times

IMG_6683 LR.jpg
IMG_6683 LR.jpg (128.28 KiB) Viewed 104 times
Last edited by evo1087 on Tue Aug 15, 2017 4:46 pm, edited 4 times in total. View post history.
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Re: Xingyue X1/SeeyesDMB09A moped LiFePo4 pack build

Postby spinningmagnets » Sat Aug 12, 2017 7:31 am

I would recommend keeping an eye out for Chevy Volt cells. Zero cells are awesome, too, but rare.

"Salvaged EV cells index, Leaf, Volt, Tesla, etc"
https://endless-sphere.com/forums/viewtopic.php?f=14&t=89680
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Re: Xingyue X1/SeeyesDMB09A moped LiFePo4 pack build

Postby evo1087 » Wed Aug 16, 2017 11:48 pm

Saw a zero this morning. Looked pretty quick. Im still pretty set in the leaf modules. Pretty good bang for the buck.
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