Recent content by guido

hello there, I have a bike with 2 motors, one magic pie 3 in the front wheel and a cyclone mid engine( each its own controller) , the power is supplied with a 48volts/32Ah lifepo4 battery, the current set up is equiped with on the left and right hand side a twist throttle for each motor and in...

allright it has been a while but I am back I have read all latest comments and understand some of your annoyance with someone like me, yes I can make anything that I can see (steel wood stone) - no I dont know much/anything about electronics, still thanks for all comments most were usefull and...

ok back in the saddle soon i hope, I bought a 16S lyens bms, it came without explanation on the colors this on has a slightly different setup from my other bmses there are only 3 cables yellow,blue and black, and the leveling wires are all red exept for one black one my thinking is: black...

what actually broke down is not clear to me the first time it was the last mofet (visually overheated and after measuring resistance between all connections it was clear that this one was dead), this one I replaced but the bms didnt work after repairs, so something else broke down as well this...

Split up the battery into 2 separate modules. Connect them with 2 separate BMS'es. Otherwise try BMSbatteries.com. ProDigit, I was told that this was ''not done'' for risk of damage, or do you mean draining one battery and when voltage drops below minimum switching to the other battery?

here is the story ive bought a kit from eclipsebikes, its a cyclone 1200 watts motor, for power i have used 32 lifepo4 16 amp headway cells, 2 parralel and 16 sets serial with the use of one bms (33 amps continuous and 60 max) giving me 48 volts over 32 amps. The main reason for the high amps...

after blowing 2 bmses in only a few hundred kilometers i think its time for something stronger than the ones i had , I need a 48 volt bms for a lifepo4 battery that can take at least 50 amps nominal and something like 100 amps max. can anyone advise me on an online store that sells them...

placed a 56 teeth sprocket on the cranck, et voila, instant improvement. Just not as much as i hoped for, I still overheated, but its hopefull cause I could get a lot further and pedalling is way more comfortable and effective especially in the higher gears. Now a 12 teeth freewheel sprocket on...

problem solved I`ve put in a keyswitch with 3 positions pos 1 controller connected, charger disconected pos 2 all off pos 3 charger connected, controller disconnected also found me an automatic roll-up cord so I`m all set everything works fine, thanks for the input guys

thanks, I will put 2 small switches between the pos and neg between the bms and the charcher as well, I should be save

here some figures of my own Rolling radius 228 cm 14t motor sprocket/18 t rear wheel sprocket = 0,77 (cranck sprockets 48t/48t does not come in equation) Gearbox on motor 1/9,33 Speed 38 kph uphill in first gear first gear hubratio: 0,63 0,63x0,77/9,33 = 0,0525 = downratio from motorsprocket...

ok thanks for the info, my bike has a fixed battery and disconnecting seemed pointless, a small switch in the thin red line is far more convenient to incorporate. so the decision to incorporate the charger into the bike is made, all I need now is an old vacuumcleaner so I can have an automatic...

ok a test further and this is the outcome I left and started climbing at once in the standard setup, 14 motorsprocket 48/48 cranck with nexus in first, climbing speed reached 32 kph without paddeling for lack of superhuman paddeling capabilities ,then on the flat max speed with paddeling in 7...

I will be getting myself that 56 teeth sprocket, thats an instant improvement, and maybe with the smaller sprocket on the crank for the secondary drivetrain, I might be fine

wow lots of feedback cruising at 40 kph on the flat, uphill I choose the lowest gear and manage 20 kph the axle is 20 mm and the 7 teeth sprockets are for 12 mm axles so I dont think I can manage that but yes a reduction before the crank would be optimal. I am thinking on scrapping an old 2500...