# Lithium upgraded gem won’t charge due to low voltage

**URL:** <https://community.electricforum.com/t/lithium-upgraded-gem-won-t-charge-due-to-low-voltage/28986>\
**Category:** GEM Forum\
**Created:** [March 16, 2025, 12:38pm UTC](https://community.electricforum.com/t/lithium-upgraded-gem-won-t-charge-due-to-low-voltage/28986 "2025-03-16T12:38:40Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![bleexblox](https://avatars.discourse-cdn.com/v4/letter/b/90ced4/32.png) [@bleexblox](https://community.electricforum.com/u/bleexblox)\
**Post date:** [March 16, 2025, 12:38pm UTC](https://community.electricforum.com/t/lithium-upgraded-gem-won-t-charge-due-to-low-voltage/28986/1 "2025-03-16T12:38:40Z")

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Hi all, I purchased a lithium upgrade from @Inwo a while back and was working great until my stored gem stopped charging due to low voltage (2 flashes at Delta charger). I had a timer periodically charging my gem over the winter but my plan didn’t work clearly. Here is a screenshot of my BMS. Is there a way to get the charger to charge my battery under this condition? Thanks!

 ![IMG_0098](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/3X/c/3/c38944459c0ad394161480ad0750ff9c7d51aac3.png)  
 ![IMG_0099](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/3X/a/1/a11dcf1a1dca7b2172e03d2069849498e47f81af.png)

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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:** [March 16, 2025, 2:39pm UTC](https://community.electricforum.com/t/lithium-upgraded-gem-won-t-charge-due-to-low-voltage/28986/2 "2025-03-16T14:39:33Z")

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Turn on Emergency mode in control screen.

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**Author:** ![bleexblox](https://avatars.discourse-cdn.com/v4/letter/b/90ced4/32.png) [@bleexblox](https://community.electricforum.com/u/bleexblox)\
**Post date:** [March 16, 2025, 2:51pm UTC](https://community.electricforum.com/t/lithium-upgraded-gem-won-t-charge-due-to-low-voltage/28986/3 "2025-03-16T14:51:31Z")

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Thank you I’ll give it a try when I get back there in a bit.

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**Author:** ![bleexblox](https://avatars.discourse-cdn.com/v4/letter/b/90ced4/32.png) [@bleexblox](https://community.electricforum.com/u/bleexblox)\
**Post date:** [March 16, 2025, 3:30pm UTC](https://community.electricforum.com/t/lithium-upgraded-gem-won-t-charge-due-to-low-voltage/28986/4 "2025-03-16T15:30:15Z")

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So I turned on emergency mode and tried unplugging and plugging in the powered cable but no luck. Still stuck with the delta two flashing lights. Any other suggestions?

 ![IMG_0102](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/3X/0/d/0d9e736ff5bd5043a7df163ca02f1bfb5f6a50c4.jpeg)

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**Author:** ![bleexblox](https://avatars.discourse-cdn.com/v4/letter/b/90ced4/32.png) [@bleexblox](https://community.electricforum.com/u/bleexblox)\
**Post date:** [March 16, 2025, 3:39pm UTC](https://community.electricforum.com/t/lithium-upgraded-gem-won-t-charge-due-to-low-voltage/28986/5 "2025-03-16T15:39:57Z")

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Good news, after toggling the setting a couple times and plugging the cable in /out it started charging again. Thanks for your help Inwo!

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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:** [March 16, 2025, 3:56pm UTC](https://community.electricforum.com/t/lithium-upgraded-gem-won-t-charge-due-to-low-voltage/28986/6 "2025-03-16T15:56:56Z")

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The preferred method for short term (1 to 4 weeks) storage is to shut down the battery switch (leaving the BMS active). So you can check in on it from time to time.  
Long term (2 to 12 mos) → Shut down BMS.

The old “set a timer” plan is not necessary and has too much potential for failure (as you noted).

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**Author:** ![bleexblox](https://avatars.discourse-cdn.com/v4/letter/b/90ced4/32.png) [@bleexblox](https://community.electricforum.com/u/bleexblox)\
**Post date:** [March 16, 2025, 8:51pm UTC](https://community.electricforum.com/t/lithium-upgraded-gem-won-t-charge-due-to-low-voltage/28986/7 "2025-03-16T20:51:38Z")

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Okay good advice, I’ll follow that approach next time. Thanks
