# No power 2009 Gem e4

**URL:** <https://community.electricforum.com/t/no-power-2009-gem-e4/26123>\
**Category:** GEM Forum\
**Created:** [March 31, 2023, 11:07pm UTC](https://community.electricforum.com/t/no-power-2009-gem-e4/26123 "2023-03-31T23:07:19Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Graymond](https://avatars.discourse-cdn.com/v4/letter/g/7993a0/32.png) [@Graymond](https://community.electricforum.com/u/Graymond)\
**Post date:** [March 31, 2023, 11:07pm UTC](https://community.electricforum.com/t/no-power-2009-gem-e4/26123/1 "2023-03-31T23:07:19Z")

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I installed new batteries from big battery,the 72 falcons … I have no speed or power… a friend of of mine said the accelerator pedal may need to be changed… any ideas? It has been sitting for several years … it has a new motor from ride for fun . I would hate to just park it again

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**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:** [April 1, 2023, 12:08am UTC](https://community.electricforum.com/t/no-power-2009-gem-e4/26123/2 "2023-04-01T00:08:31Z")

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It’s possible that it’s the accelerator, but more likely the problem lies with the batteries. They just aren’t the right fit for a GEM. I’m not even sure if the GEM charger can charge them properly / fully.

Those 72V Falcons are 28Ah batteries with a max discharge rate of 80A. You need around 175-200A to launch a GEM from a dead stop. Maybe 150A if you roll on the throttle really slow. I’ve seen just shy of 300A on my BMS display on a hard launch in my 2010 eL w/ custom 2p22s chevy volt lithium pack.

Honestly, if you can return them, I would, For around the same $2500 or so that you paid, you can get an Samsung SDI pack with over 3x the power of the BB Falcon 72s. It will be like shoving a rocket up the arse end of your GEM.

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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 1, 2023, 12:26am UTC](https://community.electricforum.com/t/no-power-2009-gem-e4/26123/3 "2023-04-01T00:26:24Z")

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I can test throttles and replace pot box if needed for $300.  
Rodney tests and cleans them for less, I believe. @Old_Houseboater  
Also Byron. @AssyRequired maybe fore less $$$

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**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:** [April 1, 2023, 1:07am UTC](https://community.electricforum.com/t/no-power-2009-gem-e4/26123/4 "2023-04-01T01:07:11Z")

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First, you need to tell us more about your car.

How long have you had it?  
Who installed the batteries?  
I see that it has been sitting for several years. Is this new R4F motor a recent install?  
 → or was it in the car as it was sitting?  
Does anything light up on this car?  
Ie- Dash? Headlights? Wipers?  
When Main power Switch is ON, KeyOFF, and Brake dropped(released), Does the car produce a steady Beeeeep?

Do you have a meter? and able to test a few locations?  
Don’t let your friend near the car.

Depending on how you answer these first questions, It will direct where to look next.

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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 1, 2023, 5:18am UTC](https://community.electricforum.com/t/no-power-2009-gem-e4/26123/5 "2023-04-01T05:18:35Z")

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Spoiler alert.  
Controller p7 tells the story.