Yosepower battery cut out

[James Torr]

Hey folks, I've a issue with my Yosepower rear hub conversion. It's a fairly senior kit, but I'll try to keep it going as long as possible.

Over the past few months, the power seems to intermittently cut out. I can't turn it on directly, but if I lift the battery off and remount, it will switch back on fine. I might get a few minutes ride, or longer, then it just switches off. I've cleaned the contacts on the controller, tried to tighten those on the battery as well. I assume it's contact related, if the supply is interrupted, it just switches off.

Anybody had (and fixed) a similar experience to this?

Thanks in advance for your responses.

 

[saneagle]

Hey folks, I've a issue with my Yosepower rear hub conversion. It's a fairly senior kit, but I'll try to keep it going as long as possible.

Over the past few months, the power seems to intermittently cut out. I can't turn it on directly, but if I lift the battery off and remount, it will switch back on fine. I might get a few minutes ride, or longer, then it just switches off. I've cleaned the contacts on the controller, tried to tighten those on the battery as well. I assume it's contact related, if the supply is interrupted, it just switches off.

Anybody had (and fixed) a similar experience to this?

Thanks in advance for your responses.

If the LCD switches off, the power to it has been cut either by a connection fault or the battery's BMS shutting off. If it happens when the battery is fully charged and your LCD shows maximum bars at the time of shut-off, it probably a connection fault. If it only happens when the battery is run down a bit and you see the bars going down immediately prior to shut-off, it's probably the BMS. Once you've established which of the two situations apply, the cause will be easier to find.

 

[James Torr]

I'll check, but I'm pretty sure it's happening regardless of the charge status, I've never seen the bars going down prior to shut off. Just happens quite randomly.

 

[saneagle]

I'll check, but I'm pretty sure it's happening regardless of the charge status, I've never seen the bars going down prior to shut off. Just happens quite randomly.

You need to look. You don't see if you don't look.

 

[James Torr]

Well, road safety and all that mate, you can't constantly watch the display while riding

 

[James Torr]

I've got a mate with the same kit, I'll check to see if his battery does the same thing, that should tell me if it's the BMS or not.

 

[saneagle]

I've got a mate with the same kit, I'll check to see if his battery does the same thing, that should tell me if it's the BMS or not.

OK, do your own thing then. I'm only trying to help you get to a quick solution.

 

[James Torr]

I appreciate you trying to help of course, and I'll look out for the BMS diagnosis pointer you mentioned, which was of course, a given after you suggested the first time round.

 

[Nealh]

How senior is the kit ?
Likey a shagged out battery possibly.
One reason why the BMS cut's out , the cells maybe hitting LVC to easily.