# 2010 gem drives short distance and dies

**URL:** <https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751>\
**Category:** GEM Forum\
**Created:** [April 2, 2019, 2:29pm UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751 "2019-04-02T14:29:13Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![Braunicus](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/braunicus/32/3941_2.png) [@Braunicus](https://community.electricforum.com/u/Braunicus)\
**Post date:** [April 2, 2019, 2:29pm UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/1 "2019-04-02T14:29:13Z")

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Trying to figure this cart out. Bought it with no batteries and with no history. After putting new batteries in it and connecting some disconnected wires it ran across the parking lot to about 12 mph. When I turned around it went another 10 feet and died. I went through the service manual and came up to the controller being bad. Had that rebuilt, put it in and get to 12mph and died again. The manual is saying psdm is bad from the j4 pin c to ground test.

What it does is it dies but the main contractor stays engaged just won’t move on it’s own. The batteries are fully charged but the battery gauge on the display shows them down at the first bar and not full. Anyone have any insights into this? Thank you in advance for any help

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**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:** [April 2, 2019, 2:30pm UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/2 "2019-04-02T14:30:59Z")

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Check total battery voltage to be sure they are connected correctly.

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**Author:** ![grantwest](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/grantwest/32/15_2.png) [@grantwest](https://community.electricforum.com/u/grantwest)\
**Post date:** [April 2, 2019, 3:07pm UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/3 "2019-04-02T15:07:21Z")

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I agree. Let us know what the carts voltage is at the controller. I’m Sure if you have enough where with all to figure out the controller is / was bad then you know how to hook a new set of battery’s up correctly but just to be sure let’s stay with the basics.

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**Author:** ![Braunicus](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/braunicus/32/3941_2.png) [@Braunicus](https://community.electricforum.com/u/Braunicus)\
**Post date:** [April 2, 2019, 4:36pm UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/4 "2019-04-02T16:36:59Z")

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Reading 74.3 at the psdm main posts

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**Author:** ![grantwest](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/grantwest/32/15_2.png) [@grantwest](https://community.electricforum.com/u/grantwest)\
**Post date:** [April 2, 2019, 6:41pm UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/5 "2019-04-02T18:41:34Z")

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And that’s at full charge.  
What’s the voltage when the car starts acting uo

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**Author:** ![grantwest](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/grantwest/32/15_2.png) [@grantwest](https://community.electricforum.com/u/grantwest)\
**Post date:** [April 2, 2019, 6:44pm UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/6 "2019-04-02T18:44:42Z")

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A fully chargerd FLA gem car should be at least 76 volts. So when you stab the gas the voltage should drop, I think low voltage cut off is around 60 volts. The weeker your battery’s the quicker they will fall off and give you a -15 code

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**Author:** ![Braunicus](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/braunicus/32/3941_2.png) [@Braunicus](https://community.electricforum.com/u/Braunicus)\
**Post date:** [April 2, 2019, 7:10pm UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/7 "2019-04-02T19:10:32Z")

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I have it on charge again after seeing the 74v. When it acts up, I don’t get a code and the voltage stays high enough to keep the main contractor engaged. Not sure if the number reading but if the voltage dropped off too far wouldn’t the solenoid break contact?

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**Author:** ![Gem\_e2](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/gem_e2/32/1849_2.png) [@Gem\_e2](https://community.electricforum.com/u/Gem_e2)\
**Post date:** [April 2, 2019, 7:50pm UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/8 "2019-04-02T19:50:28Z")

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Hi  
if you have full battery gauge after this charge  
it can be problem with your throttle pedal  
then car stops,will it work little again after some ours ?

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**Author:** ![dougl](https://avatars.discourse-cdn.com/v4/letter/d/b19c9b/32.png) [@dougl](https://community.electricforum.com/u/dougl)\
**Post date:** [April 2, 2019, 8:23pm UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/9 "2019-04-02T20:23:00Z")

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When you say it came with no batteries and you put in “new batteries”, are those brand new from a store or are these new used batteries? Fully charged lead acid batteries should hold 12.6V-12.7V measured an hour after charge is complete and it should hold that voltage for a very long time. The 12.3V you stated is almost empty with 12.2V being as low as you really want to go unless they are REALLY good deep cycle batteries. Oh, and you put in Deep Cycle batteries and not regular car batteries or even hybrid batteries, correct?

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**Author:** ![Braunicus](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/braunicus/32/3941_2.png) [@Braunicus](https://community.electricforum.com/u/Braunicus)\
**Post date:** [April 2, 2019, 8:35pm UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/10 "2019-04-02T20:35:06Z")

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Brand new off a fresh pallet t1275 Trojan’s. The battery gauge never reads above the 1 red bar on the gauge. Just took it off charge and checked with another meter to see that my meter is off by a full volt. The cart will move again a few feet if you let it sit 30 minutes or so

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**Author:** ![Hbbill](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/hbbill/32/3993_2.png) [@Hbbill](https://community.electricforum.com/u/Hbbill)\
**Post date:** [April 2, 2019, 11:49pm UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/11 "2019-04-02T23:49:17Z")

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Seems like classic accelerator pedal issue. Search that here, symptoms match perfectly. Check inwo for his affordable fix. Your voltage is very suspect for new batteries at full charge though.

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**Author:** ![Braunicus](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/braunicus/32/3941_2.png) [@Braunicus](https://community.electricforum.com/u/Braunicus)\
**Post date:** [April 9, 2019, 8:21pm UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/12 "2019-04-09T20:21:16Z")

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Thanks everyone for your help. The throttle is hosed.

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**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:** [April 9, 2019, 10:34pm UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/13 "2019-04-09T22:34:41Z")

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Do you need help fixing it?

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<div class="post-metadata">

**Author:** ![Braunicus](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/braunicus/32/3941_2.png) [@Braunicus](https://community.electricforum.com/u/Braunicus)\
**Post date:** [April 10, 2019, 12:55am UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/14 "2019-04-10T00:55:06Z")

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I would if you wouldn’t mind. It’s a slow go with my lack of free time. The one trace was burned but got it all cleaned up. Resistance reads 3m not 3k. I saw the one thread you had the repair in but when I looked again I couldn’t find it

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<div class="post-metadata">

**Author:** ![Braunicus](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/braunicus/32/3941_2.png) [@Braunicus](https://community.electricforum.com/u/Braunicus)\
**Post date:** [April 10, 2019, 9:16am UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/17 "2019-04-10T09:16:23Z")

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It’s the pot. What year/model do you use?

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<div class="post-metadata">

**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:** [April 15, 2019, 12:21am UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/19 "2019-04-15T00:21:39Z")

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Would you prefer a Bolt in solution?  
I have some extra new throttles for testing.

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<div class="post-metadata">

**Author:** ![Braunicus](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/braunicus/32/3941_2.png) [@Braunicus](https://community.electricforum.com/u/Braunicus)\
**Post date:** [April 23, 2019, 11:14am UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/20 "2019-04-23T11:14:04Z")

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Sorry, work has been nuts lately. From the parts you’ve made about it the Saturn box looks like the way to go. The project is on standby right now with everything else going on (work, personal vehicle repairs, and all) but I’ll let you know in the next few days. Thanks for all of the work you’re doing on this

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**Author:** ![Derrick](https://avatars.discourse-cdn.com/v4/letter/d/d9b06d/32.png) [@Derrick](https://community.electricforum.com/u/Derrick)\
**Post date:** [April 26, 2019, 9:38pm UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/21 "2019-04-26T21:38:18Z")

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What pedal do you use?

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**Author:** ![LithiumGods](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/lithiumgods/32/672_2.png) [@LithiumGods](https://community.electricforum.com/u/LithiumGods)\
**Post date:** [April 28, 2019, 2:58am UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/26 "2019-04-28T02:58:45Z")

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your gem probably came from the factory set for gel batteries . you have to change the deltaq setting to flooded or you will kill those batteries in short order .

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<div class="post-metadata">

**Author:** ![Braunicus](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/braunicus/32/3941_2.png) [@Braunicus](https://community.electricforum.com/u/Braunicus)\
**Post date:** [April 28, 2019, 3:34am UTC](https://community.electricforum.com/t/2010-gem-drives-short-distance-and-dies/15751/27 "2019-04-28T03:34:47Z")

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It didn’t come with a charger so that’s new. Set the charger for flooded when I installed it

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