# 2005 GEM battery display on dash always shows single red line
**URL:** https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421
**Category:** GEM Forum
**Created:** [March 10, 2018, 6:58pm UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421 "2018-03-10T18:58:52Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@diymatt](https://community.electricforum.com/u/diymatt)
#### Post date: [March 10, 2018, 6:58pm UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/1 "2018-03-10T18:58:52Z")
When I bought my GEM it was dead, dead, dead so even if I got the smallest of charge to enable the dash to light up it still showed a single red solid bar.
Once I started getting the lithiums in there and doing some testing I figured I’d see the dashboard battery meter go up but it still shows one single, sad, red line even with fully charged batteries.
Where should I be looking to fix this one? A controller issue? Potentially a disconnected wire someplace for thi function?
I’ve checked individual cells and they are all exactly at 4.1 with no dead or low cells so I don’t think it’s that. What do the pros say?
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### Author:  [@Inwo](https://community.electricforum.com/u/Inwo)
#### Post date: [March 10, 2018, 9:33pm UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/2 "2018-03-10T21:33:45Z")
> [@Battery display always indicates empty (one bar)](https://community.electricforum.com/t/battery-display-always-indicates-empty-one-bar/12799):
>
> Hi everyone, I have a 2009 GEM el xd and the battery display is now always indicating it’s empty showing only 1 red bar out of 10. The charger is still working and I’ve verified that the batteries are fully charged using a voltmeter and I was able to drive it around for hours without it dying. What could be causing this issue where the dash display is failing to read the charge on the batteries? Is there a connection that needs to be cleaned? Thanks in advance for any help!
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### Author:  [@diymatt](https://community.electricforum.com/u/diymatt)
#### Post date: [March 11, 2018, 11:47am UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/3 "2018-03-11T11:47:57Z")
I did some searching but must have missed the right keywords, good call.
Tried it, did it, fixed it. Done.
You, sir, are a gentleman and a scholar.
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### Author:  [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)
#### Post date: [March 12, 2018, 1:34am UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/4 "2018-03-12T01:34:28Z")
Try resetting the SOC setting.
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### Author:  [@diymatt](https://community.electricforum.com/u/diymatt)
#### Post date: [March 12, 2018, 10:29am UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/5 "2018-03-12T10:29:30Z")
YEp. @Inwo linked to that. Worked perfect. Thank you both.
> [@Battery display always indicates empty (one bar)](https://community.electricforum.com/t/battery-display-always-indicates-empty-one-bar/12799/2):
>
> Turn the key on.
> Push and release the TRIP/ODOMETER switch until it’s showing the
> odometer.
> While holding the switch down, turn the RIGHT signal on, then the LEFT
> signal, then return the blinker to the center.
> Release the TRIP/ODOMETER switch. You should be seeing data (P0105) on
> the display now.
> Turn the RIGHT signal on, then off repeatedly until the display reads:
> SOC (State Of Charge).
> Push and release the TRIP/ODOMETER switch. Now it’s remaining capacity in
> percent.
> You can now raise (or lower, for that matter) the SOC with the blinker
> switch.
> When you’re happy, Push and release the TRIP/ODOMETER switch. The display
> reads: DONE.
> Turn the key off.
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### Author:  [@Ben971](https://community.electricforum.com/u/Ben971)
#### Post date: [April 18, 2018, 5:47pm UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/6 "2018-04-18T17:47:40Z")
hey diymatt,
i been doing what you said about reseting the SOC,.
but when i put it back in charge after loosing couple Green Bar its stay where i left but the charger shows the green light …
i must redo the action dayly !!
why is it doing that, my batterie are brand new and original GEM Deka gel maintenance free
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### Author:  [@diymatt](https://community.electricforum.com/u/diymatt)
#### Post date: [April 18, 2018, 6:03pm UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/7 "2018-04-18T18:03:17Z")
Just taking a stab in the dark here, but the batteries are in fact getting charged right? You’ve put a meter on them?
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### Author:  [@Ben971](https://community.electricforum.com/u/Ben971)
#### Post date: [April 18, 2018, 6:22pm UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/8 "2018-04-18T18:22:38Z")
yes they are getting charge and i do the daily 20 to 25 miles like i always did the display stop showing the statue of charge one day for no reason i do it manually like you said every day to keep a track and put the trip to 0 but its getting annoying i’m pretty sure its something in the setting ??
do you have any other option in the odometer i could change …
like batt or a other one than the SOC.
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### Author:  [@diymatt](https://community.electricforum.com/u/diymatt)
#### Post date: [April 18, 2018, 6:42pm UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/9 "2018-04-18T18:42:04Z")
You could add periods here and there. That might help.
Not sure Ben. Maybe one of the more seasoned veterans around here has a tip.
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### Author:  [@Inwo](https://community.electricforum.com/u/Inwo)
#### Post date: [April 18, 2018, 7:52pm UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/10 "2018-04-18T19:52:05Z")
The Gem needs the interlock open to register charging. (green wire)
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### Author:  [@Ben971](https://community.electricforum.com/u/Ben971)
#### Post date: [April 20, 2018, 12:34pm UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/11 "2018-04-20T12:34:55Z")
ahah sorry for the periods and comma missing, thanks for your help hopefully somebody has a tip.
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### Author:  [@Ben971](https://community.electricforum.com/u/Ben971)
#### Post date: [April 20, 2018, 12:39pm UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/12 "2018-04-20T12:39:22Z")
Hey Inwo,
how do i leave the interlock open?
Do you mean by unplugging the green wire ??
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### Author:  [@Inwo](https://community.electricforum.com/u/Inwo)
#### Post date: [April 20, 2018, 1:01pm UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/13 "2018-04-20T13:01:41Z")
Yes, the charger should do this. Is the interlock working?
Car wont run when plugged in.
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### Author:  [@ca6772738758](https://community.electricforum.com/u/ca6772738758)
#### Post date: [April 26, 2018, 2:51pm UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/14 "2018-04-26T14:51:36Z")
good morning I am having a similar problem had to replace charger because let friend use my 2005 el and when he went to charge plug into same place as the freeze in his garage opps there went the charger smoked anyhow i replaced it with quick charger works great but i show yellow cord on dash and wont go no were wont drive
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### Author:  [@Ben971](https://community.electricforum.com/u/Ben971)
#### Post date: [April 30, 2018, 3:10pm UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/15 "2018-04-30T15:10:41Z")
hey inwo,
yes the interlock does work i can not drive the car once its plug in !!!
but the display screen is not showing the charging statue just the wire plug drawing in low contrast .
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### Author:  [@Teritary](https://community.electricforum.com/u/Teritary)
#### Post date: [September 25, 2024, 3:06pm UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/16 "2024-09-25T15:06:48Z")
hello Ben971,
I have the same problem on my 2011 gem elxd, the charger indicator lamp is on but in low contrast et nothing else on the screen
Did you find a solution ?
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### Author:  [@Teritary](https://community.electricforum.com/u/Teritary)
#### Post date: [September 25, 2024, 3:18pm UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/17 "2024-09-25T15:18:09Z")
And the charger was dead so I replace it by a DeltaQ 912-7200-01 but when i plug the green wire to the psdm there’s nothing at all showing up
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### Author:  [@Ben971](https://community.electricforum.com/u/Ben971)
#### Post date: [September 25, 2024, 3:31pm UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/18 "2024-09-25T15:31:47Z")
Hey
did you check the handbrake ?
Envoyé de mon iPad
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### Author:  [@AssyRequired](https://community.electricforum.com/u/AssyRequired)
#### Post date: [September 25, 2024, 3:39pm UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/19 "2024-09-25T15:39:21Z")
Hi @Teritary
You misunderstand the purpose of the Green wire.
With that wire disconnected it should display the little charge icon. When that wire is connected to the charger then it will show a dark screen.
Exactly opposite from what you would expect.
\*_ **Disclaimer- This is in a normally operational car.** _
If your car is not operating, then other causes need to be explored.
More info is needed on your situation.
Rather than tacking onto a 6 year old topic, it is better to start your own NEW topic by tapping the “c” key on your keyboard. This will open the editor window that allows you to select where you want this post to show, change the subject line to something unique to your problem, and add keywords to make your post more searchable.
Enter as much info as you can. Otherwise everyone is just guessing.
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### Author:  [@Teritary](https://community.electricforum.com/u/Teritary)
#### Post date: [September 26, 2024, 1:45pm UTC](https://community.electricforum.com/t/2005-gem-battery-display-on-dash-always-shows-single-red-line/13421/20 "2024-09-26T13:45:20Z")
how do i do that ? And what do you mean by check the handbrake ?
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