Flipsky VESC 4.12 £35
9 XT90 connectors
1 Xt90S with loopkey part presoldered
Spare Bestech hcx d345b £60 (10s 60a eswitch)
Spare used 260 by 15mm belts (postage price)
Tricky part because all parts too cheap to individually sell
I’m going to bundle the essentials all builders should have into a package for a good price
1.7 rolls of electrical tape 50mm wide
1.7 rolls of 50mm fiberglass tape (expensive stuff)
1 roll 20m kapton tape
Neoprene 4mm thick
60mm heatshrink (200 length)
180mm heatshrink in thick clear, thin clear and blue 300 length
8mm tube heatshrink 600mm
4mm tube 600mm
20 guage charging wire 2m black
10 guage red wire 400mm
100 positive fishpaper insulators
2.5 noon fishpaper sheets(100wide 300 long)
Battery trays and holder
All lengths estimated
£20
I used Kevin darks format adding fibreglass reinforcement to parralel groups and fishpaper series insulation and balance tab insulation. Flexible connections with kapton over the ends to ensure balance cables aren’t rubbed. Neoprene padding under the BMS (safe to 260C) and some thick heatshrink which is so sturdy you could almost make a compression pack with it. Not yet compressed. Oh and electrical tape across the middle for structure. I used a sunko spot welder
I’m selling up because I was hoping to replace a bus pass with these parts. Half new half used and almost made a £300 20 mile folder commuter. But with the charger breaking ruining my chances of my own compact battery I’m giving up the ghost
No I need a 4.2V charger to give the BMS a little push start. I didn’t ride it on the penny haha thought that would just look funny plus it’s easier to store. The vesc’s and battery are new but tested
why do you need a 4.2V charger? The BMS takes 42V and takes care of the difference between packs by itself. You could even hook it up to 42V without the BMS if you wanted to to - BMSs are nice to have but not crucial. you’re using quality cells so don’t worry.
And while we’re at it: 0.1V is not much - just ignore it and charge the pack to full voltage.
I am trying to prevent you from a stupid mistake that you’ll regret later on. You are so close!
When the cells close to a 0.05V gap it gets warm meaning in balance. And it’s dangerous to run a battery like that as it can’t be left to charge overnight etc. I guess the BMS would stop charging because it can detect overcharge so I would still get 99% capacity, but it is not my time yet. This isn’t my final attempt, I will be back with an 11s2p 8ah 20700 pack and 6355 jet spud or similar. But it is not my time. I appreciate all the help guys but for now this is a money thing. I’ll still be on the forums though
Swansea bro where you at? I don’t have the confidence to rock an eskate in lectures so was looking for something that folds into a bag like a linksy haha
0.05V is nothing and the balancing only starts at the end of the charge. So once you are at the balancing stage and have only 0.05V diffeence between packs that would mean your pack is full. Just ride it then!
