Author Topic: LTWOO eGR  (Read 103586 times)

Phaxe

Re: LTWOO eGR
« Reply #375 on: May 13, 2025, 09:53:11 PM »
I would appreciate it, if for no other reason than to show the picture to 80s Designer Store next time I try to order one so I can receive BOTH pieces. I received only the "long" side of the cage, which is not terribly useful on its own. I guess it's better than no replacement cage pieces.

Sorry this took so long, here they are:


amacal1

Re: LTWOO eGR
« Reply #376 on: May 14, 2025, 10:00:29 AM »
Sorry this took so long, here they are:

Wow, thanks for coming through! I'm going to have to download this and save it for when I order another cage. I'll just share this picture and tell them I need "these parts" and maybe ask for the newer ones (hopefully that won't get lost in translation).

I tried doing this by taking a picture of my RD and circling the cage to ask for the parts, but for some reason they misunderstood and only sent me 1 side of the cage. Oh well, I guess it was better than no support at all.

Phaxe

Re: LTWOO eGR
« Reply #377 on: May 14, 2025, 06:08:25 PM »
Wow, thanks for coming through! I'm going to have to download this and save it for when I order another cage. I'll just share this picture and tell them I need "these parts" and maybe ask for the newer ones (hopefully that won't get lost in translation).

I tried doing this by taking a picture of my RD and circling the cage to ask for the parts, but for some reason they misunderstood and only sent me 1 side of the cage. Oh well, I guess it was better than no support at all.

I'd see if you can get the bigger cage - changing this is a real pain in the arse, just like everything L-Twoo

kilka

Re: LTWOO eGR
« Reply #378 on: May 15, 2025, 11:44:16 AM »
Can anyone help with eGR activation? Mine came without charging cable, the seller resent the cable, but I'll have to wait for a month until I'll get it. I fully charged my accums, connected them to rear derailleur and got no reaction from the derailleur, no green blinks, nothing. In YT video they say I need the charging cable to activate for the first time. Can anyone measure voltage and polarization of original charger output, so I could try to emulate charging with mine universal tunable charger?

jonathanf2

Re: LTWOO eGR
« Reply #379 on: May 15, 2025, 11:49:50 AM »
Can anyone help with eGR activation? Mine came without charging cable, the seller resent the cable, but I'll have to wait for a month until I'll get it. I fully charged my accums, connected them to rear derailleur and got no reaction from the derailleur, no green blinks, nothing. In YT video they say I need the charging cable to activate for the first time. Can anyone measure voltage and polarization of original charger output, so I could try to emulate charging with mine universal tunable charger?

I don't have a voltage tool to check output. Can you try activating by unplugging and plugging the battery cable? In the meantime you can charge batteries in a universal battery charger.

kilka

Re: LTWOO eGR
« Reply #380 on: May 15, 2025, 12:18:22 PM »
I don't have a voltage tool to check output. Can you try activating by unplugging and plugging the battery cable? In the meantime you can charge batteries in a universal battery charger.
Already did this 10000 times. How was your activation process? Did you used charging cable as it's described on Ltwoo official YT channel?

trcycling

Re: LTWOO eGR
« Reply #381 on: May 15, 2025, 01:09:02 PM »
Warnings first: Do with this under your own judgment only. No warranties given or implied.

That said, I just pulled my cable out, plugged it in to USB port and measure 9V with the pin positive.

That is, of course, unloaded and without any potential negotiations which makes it a little surprising to me. I thought 'dumb' USB power was supposed to be 5V until negotiated otherwise. The green light at the USB A end was illuminated and perhaps that circuitry is doing the negotiation with the brick and just delivering dumb 9V down the wire.

Good luck

PS: I think you already suggested you've done this, but just in case: You can, of course, charge the battery cells externally instead of through the RD cable. But that won't necessarily help a startup sequence (which I didn't recall being there)

kilka

Re: LTWOO eGR
« Reply #382 on: May 15, 2025, 01:28:56 PM »
That said, I just pulled my cable out, plugged it in to USB port and measure 9V with the pin positive.
That is, of course, unloaded and without any potential negotiations which makes it a little surprising to me. I thought 'dumb' USB power was supposed to be 5V until negotiated otherwise. The green light at the USB A end was illuminated and perhaps that circuitry is doing the negotiation with the brick and just delivering dumb 9V down the wire.
PS: I think you already suggested you've done this, but just in case: You can, of course, charge the battery cells externally instead of through the RD cable. But that won't necessarily help a startup sequence (which I didn't recall being there)
Thank you will give a try. I did charged the batteries to 100% ofc, but it doesn't help. There is no positive contact from the battery to the cable and there is some kind of controller in the battery which I cannot identify.

kilka

Re: LTWOO eGR
« Reply #383 on: May 15, 2025, 01:43:33 PM »
So with universal charger for my car's accumulator which is capable to set output voltage as low as 7V and output current as low as 1A I touched contacts on my rear derailleur for 1 second and then...