Recent content by AntonyC

Perhaps they're intentionally working behind closed doors, which seems to be a wider problem with this BSI PAS, the OPSS's upcoming standards reviews, the PR&M bill and who knows what else. It isn't easy to find out what's in the pipeline or offer input. This isn't good because almost all the...

Yes EN15194's probably easier. For me, using 1P 20Ah cells, the benefit of 52V is being able to add capacity in 8% steps, rather than having to double weight going from 1P to 2P. That won't apply widely at present but standards should take care not to needlessly exclude technologies...

EN15194 isn't a legal requirement, although meeting it is enough to presume compliance with the law, EAPC regs 1983/2015, which itself doesn't limit voltage. So technically 52V doesn't appear to be illegal. EN15194 is meant to align with the Low Voltage Directive (LVD) which covers systems of...

Let's hope the LBS hasn't been following this :)

I don't know any mech eng so a pinch of salt is called for, but you said all the bolts were tight... what if a mating surface weren't flat but slightly convex, would that snug up tight but rock under load? Like if a caliper mount were badly machined? On your video the rim's moving a lot, so...

Welcome to proprietary bikes: different connector, differing orientation. You took the 625 battery with you and presumably asked for a compatible 750 and they supplied this one. Clearly stating your intended application makes the retailer responsible for fitness for purpose under the Consumer...

With component values K means times 1000, so 198 Ohms and 198K Ohms are different. Just in case overheating is the cause any parts you replace could use a higher power rating, so either one larger resistor or four in series-parallel. It looks as though the shunt itself is overheating too.

New York had a similar problem to London and reportedly a strong delivery culture. Anecdotal but europeans I know say ebike fires haven't reached the news there and that delivery services aren't common in major cities. I hope this OPSS ebike video has been distributed well; oddly the scooter...

That too _could_ read 1K and it's failed open circuit: if it were more than 7K a smaller and cheaper one could have been fitted. The cause of failure still needs finding and fixing.

Stock in circulation represents around 6 to 10 times annual sales figures so that's a good point. We need to be clear that those are a few of many plausible suggestions but not established. Fire service reports have been noting 'on charge at the time' which is a bit like saying 'deceased died...

The one in Caps2.jpg could be 1K 5% 1W. But both boards look darkened around the shunts, suggesting they're overheating enough that problems will recur. You could reduce the controller's maximum current to 80% so that the shunt makes 2/3 of the heat, or try replacing it with a string of...

AFAIK, yes. Bafang mid drives (1) can have a controller built in that is specific to the motor but yours is a hub drive. Your connectors are typical for motor and battery without comms, so as long as the cables at the bottom right are their only cables you'll probably be OK. (1) or...

There's more energy in a cup of petrol than a full battery so the risk is ignition rather than spread of fire, and if it does catch fire you can't contain the hot gasses. If you remove the battery it might be best done outside the shed :) and don't seal the container tight. Yes the risk is...

About time, a headline with the words 'Targeting ASB ... on motorbikes'

You should have no trouble matching your present controller's voltage and current, near enough, and probably find a sine controller. BF & KT wiring schemes differ a bit so check the plugs. If anyone points to the 350W motor marking the 7A or 8A rated current makes it about a 250W rated system...