# Gem Batteries Discharge while sitting

**URL:** <https://community.electricforum.com/t/gem-batteries-discharge-while-sitting/3959>\
**Category:** EV Small Talk\
**Created:** [December 26, 2013, 4:56pm UTC](https://community.electricforum.com/t/gem-batteries-discharge-while-sitting/3959 "2013-12-26T16:56:18Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mparseghian](https://avatars.discourse-cdn.com/v4/letter/m/439d5e/32.png) [@mparseghian](https://community.electricforum.com/u/mparseghian)\
**Post date:** [December 26, 2013, 4:56pm UTC](https://community.electricforum.com/t/gem-batteries-discharge-while-sitting/3959/1 "2013-12-26T16:56:18Z")

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Hi,

I have a 2002 GEM E875 with new trojan batteries. I’ve also had the Zivan charger replaced along with a new DC board. The batteries seem to charge fine. The issue I am having is if I fully charge the Gem overnight (will hit 100%), in the morning, the batteries are then discharged. Somewhere between 80-90% and the Gem has low power. There is definitely a draw somewhere that is stealing the power but I’m not sure how to find it. Has anyone had this problem or know of a common ‘draw’ problem? Thanks so much.

Mike  
Redondo Beach, CA

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**Author:** ![somfas](https://avatars.discourse-cdn.com/v4/letter/s/6a8cbe/32.png) [@somfas](https://community.electricforum.com/u/somfas)\
**Post date:** [September 13, 2014, 4:04am UTC](https://community.electricforum.com/t/gem-batteries-discharge-while-sitting/3959/2 "2014-09-13T04:04:12Z")

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I am having the same problem. It has been recommended that I check the batteries with a hydrometer, but I don’t have one. Also, what I will try, is to turn off the main disconnect switch after a full charge and see if the batteries still run down. Good luck.

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**Author:** ![AV8](https://avatars.discourse-cdn.com/v4/letter/a/848f3c/32.png) [@AV8](https://community.electricforum.com/u/AV8)\
**Post date:** [September 14, 2014, 3:35am UTC](https://community.electricforum.com/t/gem-batteries-discharge-while-sitting/3959/3 "2014-09-14T03:35:20Z")

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Mine does the same thing. Trojans. 2001 with Stereo.

Why doesnt the charger maintain the 100%.