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But no harder than the axle itself! (can't recall where I saw this)

Interesting... Do you anticipate that prices remaining depressed will in the long term help sales pick up and snowball at last?

Overcharging ought not to be an issue, a full function BMS protects against it whether due to over-voltage, over-current or over-temperature. Sadly your advice is still good advice because of the under- and un-protected batteries both in circulation and still available. But it's worth...

> You can get 60aH 72v LifePO4 batteries for about £350 Would love to know which buttons you're pressing, on that link I'm seeing £718 delivered, presumably novice pricing!

Sadly no pic of that bollard but some are out to get you especially when it's busy:

Will an etrike do? https://www.startupselfie.net/wp-content/uploads/2022/07/Streek-Multi-Level-Cargo-e-trike.jpg

> "We have seen large scale operations to tackle the likes of fake clothing and we are pushing for the same dedicated operation to be rolled out to tackle problematic electrical goods which pose a risk to life." < The recent WMG report lists a lot of regulations and 6 years have gone by since...

"E-bikes are about the best and safest form of simple, non polluting cheap transports." Amen to that.... and all of it will be swept away if the Li-Ion Battery Safety Bill gets into law. A modern BMS protects against over-current and over-voltage: over-charging occurs when the BMS isn't up to...

It's still a big concern that the most digestible outcome doesn't point out the most pressing problem even if it's outside their remit. Their recommendations have to cope with the legacy situation so it's on the table. I'm glad audible alarms are in but directed venting doesn't seem to be. As...

I've only skimmed the executive summary but its concluding remarks include: "WMG believes that the unacceptably high level of PLEV fires can be reduced over time. There is, however, no quick fix, due to the large number of products already in the hands of consumers", and the section on...

A max speed of 15.5mph --> The power stops when you reach 15.5mph ? We don't want to sow confusion like leaving out 'rated' has. @Ghost1951: Careful, don't make seizing your bike any more attractive ;)

I'm sorry for your loss of someone so kind. On the forum on rare occasions questions like that do get asked, with good intentions.

Slower charging is safer. It's a 2018 bike so the battery could be well used, if it has 70% capacity the charge rate is effectively 40% higher than before. Hopefully you asked some pretty searching questions about why there wasn't a charger with it.

£140 vs around £30? That's one reason to oppose the proposed Li-Ion Battery Safety Bill. It makes proprietary charging interfaces compulsory which does almost nothing for safety and as phrased in the Bill could make batteries less safe than at present. No doubt some retailers' eyes will light...

Many batteries convey temperature to the charger and as that's for safety it can block charging if that connection is missing. So a Bosch socket almost certainly won't help unless it's on a Bosch charger. If it helps think of the £50 as investing in a levy on people who would nick Bosch bikes.

Nice looking bike. I'd do as you suggested using a rigid plastic plate, zip tie the cells+BMS pack to the plate inside the bag and then.... rub the inside of the bag with a damp sponge and squirt building foam all round the pack. That way you get thorough waterproofing without a shower cap, a...

"dual battery adapter" finds them from £27 including postage. @Cisco-man At 7A it would shed 3.5W so could need a heatsink depending on your setup. If the bolt touches the diode case the nut carries battery +ve which shouldn't be a problem but I'd cover it. Very neat!

Like you I'd guess the transistors will be compatible voltage-wise but could have different pinout, a component tester should sort that out, or a meter will ID the base and you've 3 spares. Fully charged 36V is 42 actual volts, 48V LVC could be 40V or 41V. Controller might turn off if it...

Sounds OK to me. Near to full the charging slows down so take a good estimate - your 3 hours - then add an hour or two to finish off, and if still red give it all day on this occasion to balance up. If you haven't noticed range fading a lot it's pretty certain all's well whatever the final...

Above with mixed cell types more current comes from one than the other and the ratio of their contributions changes and reverses during discharge. This also happens below using identical cells with differing resistances, in this case interconnect resistances. Below with mixed cell types when...