Paradad

Yes, I've heard it's very good So more specifically - anyone recommend a site that gives an overview of current e-bike tech? Where is the standard for wiring for example??

Thought I'd also note that the wheel parts have all finally arrived and I have built the Q70 motor into a Sun CR18 rim as suggested by VFR. 120mm spokes fit perfectly using a cross 1 lacing pattern.

Just want ed to pick up on the point of wiring - it's incredibly unsual for even a ompany to stick to standards, very refreshing to know the ebike motors are sticking to a common standard. It has highlighted how little INkow about how themotoros actually work - can anyone recommend a site and can go to read and educate myself?

Good to know, cheers

Thanks both - I'll take a look. That's the problem these days - so much stuff looks okay on the screen but the reality is all too often really poor straight to landfill..!

Yes, fair point. I've only bought them twice - one set was definitley much better quality than the others...

good call, thank you!

Good information, thank you! I think that's part of the problem - a lot of the DIY e'bike connectors are not really heavy duty DC conectors at all. I take it the old DIN connectors weren't up to the job? So anyway, a bit of context , the wider problem I'm trying to solve is I have a very nice bike that is getting wrecked by hanging a large battery from velcro straps on the frame. That will be okay for short occasional use but I use it daily for 50mile round trips including a few miles along rock and loose rock. The battery bouncing around on its straps is trashing the frame finish. I've decided to take the bike out of action while I figure out how to mount the battery and redo the wiring. I plan to build a composite lift on/off lockable case. That's why the connector needs to be up to the mark. So far as the XT connectors are concerned - they're great for what they do and definitely (IMO) the best of what I've seen so far, but still a long way from "job done". Anyway, no offence taken. I may eventually abandon the search and go with the XT connectors, but not until I've had a good look at this from a few angles. There are things out there, at a price (check out mouser.co.uk, molex and rs-online), so I'm not giving up yet! Ideas / thoughts / experience on connectors still welcome please!

Sorry Pete, I'm working back up the stack! Here's a photo....

Hi, if I can unpack that a bit, what you're saying is that all motors from all manufacturers use the same wiring layout? Same number of hall sensors / wiring layouts and colour coding? If the connectors (when they arrive) are also standard then this may be a moot point but I'm genning up before the build. Could you point me to somewhere where the wiring is described ? I've not found anything .

So my Q70 arrived this week. The details provided by BMSBattery have been ever so slightly less than useful! Does anyone have a colour coded wiring diagram? It's even possible the wiring is the same as others "Q" series motors I guess. Any thoughts anyone?

I'm going to try to revive this a little as I think connectors and wiring are one of the hardest things to do well in a DIY eBike. I've started to refine what I'm looking for... Up to 50A DC, Waterproof (Sealed), Female panel mount,and over 500 mating cycles min. The choice of connectors seems remarkably thin on the ground. Plenty of products from China with no standards or electrical specifications provided! The xt60 and xt90 are great in their way but not sufficiently robust to be built into a case. Here's an example from BMS Battery. Typically thin on the specifications but at £9 plus £37 postage I'm still looking ! https://bmsbattery.com/home/880-a-pair-50a-waterproof-connector-2-1-5-pins.html Any thoughts anyone? I'm also interested in hearing about high current switches too...

Hi Kirstin, it's for both, so high current capability needed thanks both for the posts. I haven't seen surface mount before. Do you know of other formats that could work? I've had XT plugs deform and crack in the past so I'm on the lookout for something a bit more durable to fit into the case. Any thoughts? Perhaps metal connectors? I've seena lot but nothing that will handle the power needed!

Hi, I'm looking for advice on waterproof connectors suitable for mounting into a hard battery case. I am planning on building an epoxy composite case to hold the battery and need to mount a connector to the surface of the case for ease of use when moving the battery on/off the bike. I'm looking for a surface mount (i.e. female connector on the case with a dust cap). Can anyone recommend a suitable fitting? All I've found is Andersons and XT60 / XT90 connectors which aren't really suitable for surface mounting. Has anyone out there been there done that and can point me in the right direction?

I do like the look of that softpack [mention=12956]wheeliepete[/mention] !