Recent content by dylan

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    Bafang BPM 48V500W Clutch Problem

    BH4SKM thank you for looking
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    Bafang BPM 48V500W Clutch Problem

    Hi d8veh Wow that would be amazing if I could purchase one from you. I'm in Walton-on-Thames in surrey. please let me know how much thank you once again kind regards Dylan
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    Bafang BPM 48V500W Clutch Problem

    thanks for the reply gents Unfortunately green bike kit only do the new style BPM clutch which is different to the old one. I have had a search on ebay & aliexpress with no luck. The old style clutch that I need has 4 keyway cut-outs for the central shaft. The new clutch only has one & will not...
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    Bafang BPM 48V500W Clutch Problem

    hi Guys I have an old Bafang BPM 48V500W Rear Driving - RPM : 328 from BMS Battery the motor runs ok but I believe the clutch is faulty you have to pull away very slowly otherwise the motor makes a loud screeching / clicking noise it fine once its up to speed I opened up the motor with the...
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    48v Li-Ion battery problem

    hi Guys I'm now in the process of charging each cell individually to as near to 4.2 v as I can this will take a while...! if this doesn't work where is a good place to get a replacement 48v 10ah battery pack? last time I got it from BMS battery - low initial cost in $ USD but after shipping &...
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    48v Li-Ion battery problem

    thanks guys I have found a variable voltage charger, Set it to 4.5v (choice was 3, 4.5, 7.5v) & made some charging connections I am charging pins 2 & 3 first (positive on pin 3 as it measured positive) I am monitoring voltage across the pins as it charges & disconnecting charger to measure the...
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    48v Li-Ion battery problem

    hi Guys I really appreciate your help & advice - thank you I have opened the battery (see attached pic) I have measured the voltages as follows: Pack = 50.3v after being on charge all night Charger green light is on & fan on charger goes off when green light goes on negative DVM lead on negative...
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    48v Li-Ion battery problem

    Just checked the voltages Fully charged 50.1v road bike with very gentle power use for approx. 1 mile then it cut out - no power at all voltage is 15.8v just plugged it in to recharge again
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    48v Li-Ion battery problem

    Hi Guys I have a problem with my battery pack, 48v Li-Ion from BMS battery about 18 Months old Previously running perfectly from new, then one night just cut out halfway home Wouldn't even spin the wheel with no load, just dead It now gets me about 1 mile down the road & cuts out dead, no power...
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    controler power mod

    Thanks for all your help guys I have soldered a copper wire along approx 50% of the shunt I haven't changed the capacitors or measured the current, I have just 'winged it' The result - much better acceleration & around 21 mph - that will do nicely...! I have a KU123 controller on order anyway...
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    Melted Connections - Beware...!

    Hi Folks Just thought I would share with you my lucky save the other day I just popped open the battery bag on my BPM 500W Rear conversion bike when I noticed melted connectors The three bullet connecters for the motor power wires had all melted together Goodness knows how they didn't actually...
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    controler power mod

    Thanks d8veh i'll give it a try
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    controler power mod

    hi guys I want a bit more oomph from my 2nd (backup) electric bike Its a Thompson K2 MTB 250W originally 24V I normally run it with my 48V pack from my main electric bike I have pulled the little 6 FET controller apart to look at possible doing a shunt mod to up the amps a little 1st problem is...
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    Thompson K2

    Well guys I finally got round to doing something with this bike. I have spent around £15 & now it's sorted into a stealthy backup electric bike. I purchased from Ebay a seat post rack & a small toiletries bag. I borrowed my 48V 10 Ah battery pack from my everyday electric bike. This battery can...
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    Thompson K2

    Hi Guys I have been given a Thompson K2 electric mountain bike. It's basically new from 2007 & has just been left sitting unused in a garage. The NIMH 24V 8Ah (20 cell) battery pack appears dead & I am hoping to revive it. After plugging in the charger the red charging led on the charger turns...
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