# 2000 E285 - Lithium / Charger Swap - electrical issues **URL:** \ **Category:** GEM Forum\ **Tags:** gem\ **Created:** [September 9, 2026, 6:12pm UTC](https://community.electricforum.com/t/2000-e285-lithium-charger-swap-electrical-issues/30657 "2026-09-09T18:12:49Z")\ **Posts on this page:** 10\ **Page:** 2
**Author:** ![alex2](https://avatars.discourse-cdn.com/v4/letter/a/45deac/32.png) [@alex2](https://community.electricforum.com/u/alex2)\ **Post date:** [September 15, 2026, 5:35pm UTC](https://community.electricforum.com/t/2000-e285-lithium-charger-swap-electrical-issues/30657/21 "2026-09-15T17:35:41Z")
Battery is on. Still have 78v across controller. Still pulls contactor when controller relay is bypassed. Removed floating green wire. ---
**Author:** ![AssyRequired](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/assyrequired/32/7621_2.png) [@AssyRequired](https://community.electricforum.com/u/AssyRequired)\ **Post date:** [September 15, 2026, 5:38pm UTC](https://community.electricforum.com/t/2000-e285-lithium-charger-swap-electrical-issues/30657/22 "2026-09-15T17:38:47Z")
Scroll back up to my last post. I added a few things you might have missed. ---
**Author:** ![alex2](https://avatars.discourse-cdn.com/v4/letter/a/45deac/32.png) [@alex2](https://community.electricforum.com/u/alex2)\ **Post date:** [September 15, 2026, 5:42pm UTC](https://community.electricforum.com/t/2000-e285-lithium-charger-swap-electrical-issues/30657/23 "2026-09-15T17:42:08Z")
Goes to pin 1 on the 12 pin plug. Edit: This makes me think they mixed up wires when installing 12v converter. Pin 1 should come from B- and that other green should be to charger / interlock? ---
**Author:** ![AssyRequired](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/assyrequired/32/7621_2.png) [@AssyRequired](https://community.electricforum.com/u/AssyRequired)\ **Post date:** [September 15, 2026, 6:38pm UTC](https://community.electricforum.com/t/2000-e285-lithium-charger-swap-electrical-issues/30657/24 "2026-09-15T18:38:32Z")
Yes, That wire going to P12 (black) needs to go to the B- on the controller. Then the green wire from the tiler needs to go to the black wire coming out of the Charger. _ **Before hooking it up-** _ (because I don’t trust the last guy) → Verify that there is now 12v when KeyON ---
**Author:** ![AssyRequired](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/assyrequired/32/7621_2.png) [@AssyRequired](https://community.electricforum.com/u/AssyRequired)\ **Post date:** [September 15, 2026, 6:59pm UTC](https://community.electricforum.com/t/2000-e285-lithium-charger-swap-electrical-issues/30657/27 "2026-09-15T18:59:45Z")
Ah, My bad. I was speed reading. You had 1 and 12 in he same sentence. Crap like that makes the rocket miss the moon!! ---
**Author:** ![alex2](https://avatars.discourse-cdn.com/v4/letter/a/45deac/32.png) [@alex2](https://community.electricforum.com/u/alex2)\ **Post date:** [September 15, 2026, 7:06pm UTC](https://community.electricforum.com/t/2000-e285-lithium-charger-swap-electrical-issues/30657/28 "2026-09-15T19:06:16Z")
No worries. Wired as above - P1 green to B-, charger black to timer relay. Everything appears to be working as intended. ---
**Author:** ![alex2](https://avatars.discourse-cdn.com/v4/letter/a/45deac/32.png) [@alex2](https://community.electricforum.com/u/alex2)\ **Post date:** [September 15, 2026, 7:18pm UTC](https://community.electricforum.com/t/2000-e285-lithium-charger-swap-electrical-issues/30657/29 "2026-09-15T19:18:15Z")
Thank you so much for all your help! I think this is now completely fixed. I will drive / test the cart throughout the week to make sure. ---
**Author:** ![AssyRequired](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/assyrequired/32/7621_2.png) [@AssyRequired](https://community.electricforum.com/u/AssyRequired)\ **Post date:** [September 15, 2026, 7:51pm UTC](https://community.electricforum.com/t/2000-e285-lithium-charger-swap-electrical-issues/30657/30 "2026-09-15T19:51:23Z")
Great. Do some teat laps with dash covers removed. Tidy up the wiring, zip tie bundles together and then fasten to solid points so things dont flail around. in there. Clean things off, blow out the cobwebs. ---
**Author:** ![JarJarJava](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/jarjarjava/32/15158_2.png) [@JarJarJava](https://community.electricforum.com/u/JarJarJava)\ **Post date:** [September 16, 2026, 12:19am UTC](https://community.electricforum.com/t/2000-e285-lithium-charger-swap-electrical-issues/30657/31 "2026-09-16T00:19:38Z")
> [@AssyRequired](#): > > Crap like that makes the rocket miss the moon!! As long as it crashes into the sun, it’s all good. ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [September 16, 2026, 4:28am UTC](https://community.electricforum.com/t/2000-e285-lithium-charger-swap-electrical-issues/30657/32 "2026-09-16T04:28:15Z")
> [@AssyRequired](#): > > Ah, My bad. I deleted it. Please let me know of any mis-posts. I can clean them up, so as not to confuse a future member. I guess that you can delete them as well. I clean up my posts all the time because I’m an ■■■■■. 😂 [Previous page](https://community.electricforum.com/t/2000-e285-lithium-charger-swap-electrical-issues/30657.md?page=1)