Recent content by rounds

Also, this is the motor from the QR code on it, "RM G060.D 6.5 1F6V5291242."

So, I suspect that I have identified the problem. If anyone is interested, TurboAnt asked for a video showing the problem. It's here, but in a nutshell, my display shows error 26 and I pull the battery and measure the voltage with my DMM...

Thanks! That all makes a lot of sense. Sign, perhaps I'll open the battery and see if I can modify the BMS... but probably not. Based on what you are saying I already ran the battery below "safe" levels so hopefully I can avoid that again.

If you have a second, could you please pop into my thread here: https://electricbikereview.com/forums/threads/48v-battery-voltages-help-please.48746/ I'm having some issues with my battery unrelated to your charger hack and I would highly appreciate your insight. Thanks! craigr

Neat idea, but alas I think not. The battery charger that shipped with the bike outputs 54.5v. Fully charged if I let it go to 100% the battery will read 54.5v. I did fully charge the battery the other day because I have read that some less advance BMC's don't maintain balance well and...

Tom I've read a lot of your posts and would appreciate your opinion of my situation. You seem to know a lot about batteries. Thank you! craigr

Thanks for your reply Rich. I am not using the battery gage on the display to make my determinations. I have a degree in mechanical engineering and am owner of an engineering firm that does all electronic related engineering. As I said in my first post I am checking the battery with a FLUKE...

OK so the controller has low voltage protect at 40v. The battery is rated 672Wh so I guess ~14Ah. It's OEM and has a sticker "LG Cells Inside" for what that's worth. Its a hub 750W Bafang motor. Turboant N1. The controller is rated for 22 amps but was set to 20 amps on delivery. I raised...

Thanks for your help. Like I said, I'm still learning. My question really is this, is my BMS cutting the battery too soon? 43.5 volts seems too soon to cut off the battery based on the first chart. Like, I don't want to have 30% capacity left when my BMS decides it's time to shut off the...

I know this has been covered, but I still am seeing so much conflicting information and could use some help. I'm still new to ebikes, just got my first one, and am learning. It's a 48v. I have seen multiple graphs that supposedly correlate battery voltage to percent of usable battery left...

That’s the beauty and fun of hacking. Hack on!

Actually, you don't need to connect the grounds. I checked before wiring and they are indeed always connected and not switched. Only the POSITIVE is switched. craigr

Just wanted to pop back in and say that this is working nicely. Good call man on the switch to get the process charging with the Vin and Vout reversed. I actually wound up using a two gang outlet box and a regular single pole light switch. I actually like the light switch better than a...

Ah I finally get your meaning. Yeah, that probably would work than actually. The "dN" setting wouldn't have any function than, nor would "dOP" so hitting the correct voltage would be a bit more crude. But I think that what you propose would work, just without some of the fancier features of...

Once the charging current is stopped by the CD60, the battery's charging port goes to zero volts. The CD60 shuts off. I tried it hoping there would be enough juice on the charging port and it didn't work :(