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People often ask, “can I put two packs in parallel to increase capacity and reduce strain on each battery pack?” Yes you can, but you need to make sure that the two packs are of a similar voltage before connecting them. Also, if you disconnect one pack, the socket will still be live from the...

Been overvolting my Bafang SWX02 36V 250W hub motor to 59V at 15A and completed 1000 miles on it. Now I have replaced it with a Bafang G020250 DC, so I can fit a cassette and make full use of my 8 gear shifters again. In the process I had a strip down to see what the insides looked like. I was...

Has anyone tried these chargers? If so, are they any good?

Which do you think is better? I've never had a MXUS motor, but I've got a couple of Bafangs. Recently I've been looking for a new motor, but prices have jumped and there are fewer available. MXUS tend to be a bit cheaper than Bafang and I was wondering if there is a reason why? Which would you...

Some people think it's a good idea for cell longevity to only charge to 4.1V instead of the normal 4.2V. However, when you have a pack of cells, only charging to 41V may cause balance issues as the BMS in many cases does not start balancing until about 41.5V. Anecdotal evidence from some on this...

I've read on the web about the dangers of over heating hub motors as it could cause permanent loss of magnetisation of the magnets and this can start from temperatures as low as 80 Deg C. This worried me a bit, it would be quite easy for a hub motor to get hotter than that. However, seasoned...

Don't want to re-invent the wheel here, but has anyone ever used the Hall sensors as a means of measuring motor temperature? Hall sensors are semiconductors, so hole/electron mobility should change significantly with temp. Can this be monitored and calibrated to temperature?

Got home and put the battery pack on charge, but the light on the charger stayed green. I double checked connections, still green. I looked at the voltage from the charger 85V! Battery voltage seemed normal, so relief there... Then plugged in the spare charger and measured the voltage output...

I know this is somewhat subjective on temperature, how long the cell has rested etc, but does anyone have a reliable table of open circuit voltage at rest with % of remaining capacity for a normal Li-ion nominal 3.6/3.7V cell?

I'm looking to replace the rim that came with my rear hub motor kit, as spokes are beginning to fail and it is a very average rim anyway. So I've bought a decent rim, however, I'm finding it difficult to find a shop prepared to do wheel building with hub motors. The last shop I went into the guy...

With the boom in traffic since the end of lock down, the number of close passes and punishment passes I'm getting is increasing again. This is a big problem on certain parts of my commute where there are painted dashed lines demarcating a "cycle lane" (what the Belgians call "murder strips")...

The other day I was on my bike and there was a terrible smell of burning, then the bike cut out completely. After peddling the last 5 miles home without assist (phew, hard work for me these days!) I found the Yose Power battery pack had died. The main 20 A fuse was ok, so I opened up the pack...

Has anyone tried using an MT60 connector to connect their controller to their motor? https://www.ebay.co.uk/itm/AMASS-MT60-Male-Female-3-Pin-Gold-Plated-RC-Connector-30A/254460656392?hash=item3b3f097b08:m:m7yixIYWiTbDchzINBXLWIg My Bafang has a waterproof Juliet connector, but the cheapo kit...

Does anyone have any experience of replacing motor Hall sensors? I think I might have blown one or two in my motor. Is there any way to test whether a Hall sensor is functioning without having to take the motor apart? Thanks, Wheezy

I've done a couple of conversions using DIY kits and I hope I am ok and following the rules, but the law seems a total mess and is completely confusing. One is a LCD based Bafang 250W 36V hub drive. All labelled kit etc and should be legit, but... According to the rules, the ability to change...

Hi All, Just joined the forum. Been interested in e-bikes for many years, but didn't get around to doing anything meaningful until last year. My legs aren't what they used to be and after several ops, I've found the assistance very helpful. I bought an inexpensive Bafang kit and converted my...