# 2016 GEM Lead Acid to BMW Lithium Battery Conversion **URL:** \ **Category:** GEM Forum\ **Created:** [July 21, 2020, 1:58pm UTC](https://community.electricforum.com/t/2016-gem-lead-acid-to-bmw-lithium-battery-conversion/19441 "2020-07-21T13:58:34Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Bullochman](https://avatars.discourse-cdn.com/v4/letter/b/6bbea6/32.png) [@Bullochman](https://community.electricforum.com/u/Bullochman)\ **Post date:** [July 21, 2020, 1:58pm UTC](https://community.electricforum.com/t/2016-gem-lead-acid-to-bmw-lithium-battery-conversion/19441/1 "2020-07-21T13:58:34Z")
Don’t know if anyone has ever been to [www.batteryhookup.com](http://www.batteryhookup.com), but I wanted to ask if anyone has any feedback they could give on using this battery from old BMW Stock, 14S 8kwh battery. [https://batteryhookup.com/products/bmw-oem-48v-8kwh-powerwall-14s-28s-easy](https://batteryhookup.com/products/bmw-oem-48v-8kwh-powerwall-14s-28s-easy) This is the least expensive option for me for a conversion to Lithium right now. Anyway, [![](https://img.youtube.com/vi/GqyZ1dBaGQw/maxresdefault.jpg "Huge BMW Lithium Battery, EV, Less Than $100/kwh") ](https://www.youtube.com/watch?v=GqyZ1dBaGQw) I need more than my Deep Cycle batteries can provide. ---
**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:** [July 21, 2020, 2:31pm UTC](https://community.electricforum.com/t/2016-gem-lead-acid-to-bmw-lithium-battery-conversion/19441/3 "2020-07-21T14:31:56Z")
This doesn’t look promising: **"2012 BMW . Only around 15% degradation on these"** Should work ok, if the balance leads are easily accessible. Good price. I wonder what @LithiumGods gets for a new 14s 180ah Chevy. ---
**Author:** ![MikeKC](https://avatars.discourse-cdn.com/v4/letter/m/90ced4/32.png) [@MikeKC](https://community.electricforum.com/u/MikeKC)\ **Post date:** [July 21, 2020, 2:34pm UTC](https://community.electricforum.com/t/2016-gem-lead-acid-to-bmw-lithium-battery-conversion/19441/4 "2020-07-21T14:34:56Z")
I use BMW i3 batteries all the time (12s - 64ha) - they are AWESOME but can get pricy. ---
**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:** [July 21, 2020, 2:46pm UTC](https://community.electricforum.com/t/2016-gem-lead-acid-to-bmw-lithium-battery-conversion/19441/5 "2020-07-21T14:46:40Z")
Before you spec batteries you need to know what your chargers finished voltage is . Example: a 72v DeltaQ charger on Gel will do a finish , balance voltage at 96v . You hook up a 72v lithium battery to that and you could have a real problem . Test your finish voltage . Then you can determine the number of cells required . ---
**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:** [July 21, 2020, 3:18pm UTC](https://community.electricforum.com/t/2016-gem-lead-acid-to-bmw-lithium-battery-conversion/19441/6 "2020-07-21T15:18:37Z")
We had @grantwest running on 16s. 60v ---
**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:** [July 21, 2020, 4:14pm UTC](https://community.electricforum.com/t/2016-gem-lead-acid-to-bmw-lithium-battery-conversion/19441/7 "2020-07-21T16:14:17Z")
didn’t he have to change out his charger ? ---
**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:** [July 21, 2020, 5:06pm UTC](https://community.electricforum.com/t/2016-gem-lead-acid-to-bmw-lithium-battery-conversion/19441/8 "2020-07-21T17:06:29Z")
48v goes to 65.7v…