# Charge without Controller?

**URL:** <https://community.electricforum.com/t/charge-without-controller/17217>\
**Category:** GEM Forum\
**Created:** [October 4, 2019, 6:38pm UTC](https://community.electricforum.com/t/charge-without-controller/17217 "2019-10-04T18:38:44Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Gaslol](https://avatars.discourse-cdn.com/v4/letter/g/a587f6/32.png) [@Gaslol](https://community.electricforum.com/u/Gaslol)\
**Post date:** [October 4, 2019, 6:38pm UTC](https://community.electricforum.com/t/charge-without-controller/17217/1 "2019-10-04T18:38:44Z")

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I had my controller sent off to be rebuilt and I did not charge the batteries prior to removing the controller. It may take awhile for the rebuild to happen and I don’t want the batteries to get too low to recharge. Can I charge without the controller?

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**Author:** ![dirtlanes](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/dirtlanes/32/5340_2.png) [@dirtlanes](https://community.electricforum.com/u/dirtlanes)\
**Post date:** [October 4, 2019, 6:52pm UTC](https://community.electricforum.com/t/charge-without-controller/17217/2 "2019-10-04T18:52:23Z")

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You can charge them one by one using a standard automotive charger. All the standard caveats apply.

You want to make sure they stay balanced and have the same individual nominal voltage when unplugged if you do decide to charge them one to one.

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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:** [October 4, 2019, 7:27pm UTC](https://community.electricforum.com/t/charge-without-controller/17217/3 "2019-10-04T19:27:31Z")

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On pre 2016 Gems the charger works stand alone. Charge as normal.

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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:** [October 6, 2019, 7:45am UTC](https://community.electricforum.com/t/charge-without-controller/17217/4 "2019-10-06T07:45:41Z")

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Hi  
you can not charge if controller are removed  
first you need to connect the black negative wire from charger if you have 2005-2016 car