# 84 volt instalation in pictures

**URL:** <https://community.electricforum.com/t/84-volt-instalation-in-pictures/18970>\
**Category:** GEM Forum\
**Created:** [June 7, 2020, 9:55pm UTC](https://community.electricforum.com/t/84-volt-instalation-in-pictures/18970 "2020-06-07T21:55:19Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Old\_Houseboater](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/old_houseboater/32/544_2.png) [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)\
**Post date:** [June 7, 2020, 9:55pm UTC](https://community.electricforum.com/t/84-volt-instalation-in-pictures/18970/1 "2020-06-07T21:55:19Z")

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84 volt install in my 2000 e825 4 seater.

What say you?

 ![trunk batt](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/9/9c91d550db81885538ee9124e10db0fa8aec47d1.jpeg)  
 ![battery in the bay](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/e/eaeb9e851855f4737e7e6d3f04cbb506e08de701.jpeg)  
 ![spoof](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/5/5d592f5963fcccf665d010182b8c5a89472ee743.jpeg)  
 ![2nd charger](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/b/bf267e7b8efcd76e68b2101336aaf8cce3ca3c2e.jpeg)  
 ![front hookup](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/0/041c74717de4070719aec9c7eec91a18c99b2421.jpeg)

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**Author:** ![IRBGEM](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/irbgem/32/4550_2.png) [@IRBGEM](https://community.electricforum.com/u/IRBGEM)\
**Post date:** [June 7, 2020, 10:09pm UTC](https://community.electricforum.com/t/84-volt-instalation-in-pictures/18970/2 "2020-06-07T22:09:51Z")

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I thought you were running a Lipo as a 7th. Interesting. When Nick was there did he get a look at it?

So basically you are just adding 12v to the charging system for a total of 84?

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**Author:** ![Old\_Houseboater](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/old_houseboater/32/544_2.png) [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)\
**Post date:** [June 8, 2020, 12:56am UTC](https://community.electricforum.com/t/84-volt-instalation-in-pictures/18970/3 "2020-06-08T00:56:12Z")

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Yes and the “Spoof” to fool the controller

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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:** [June 8, 2020, 2:54am UTC](https://community.electricforum.com/t/84-volt-instalation-in-pictures/18970/4 "2020-06-08T02:54:14Z")

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> [@IRBGEM](#):
>
> I thought you were running a Lipo as a 7th. Interesting

No, that’s me.

The LiFePo4 pack is right before the contractor, the regular charger and controller doesn’t see it, so no spoof needed.

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<div class="post-metadata">

**Author:** ![Old\_Houseboater](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/old_houseboater/32/544_2.png) [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)\
**Post date:** [June 8, 2020, 1:43pm UTC](https://community.electricforum.com/t/84-volt-instalation-in-pictures/18970/5 "2020-06-08T13:43:09Z")

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Hmm

If the Lipo is in line after the controller and doesn’t change polarity in reverse don’t you have problems in reverse?

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<div class="post-metadata">

**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:** [June 8, 2020, 2:04pm UTC](https://community.electricforum.com/t/84-volt-instalation-in-pictures/18970/6 "2020-06-08T14:04:18Z")

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It’s in line after the contactor, before the controller. My previous post could have been more clear. The harness, I forget which pin (where the spoof would be installed), doesn’t see it, was what I meant.

[![](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/6/636454c6c25c781fbd2187b3e16558d5222b94c3.png) ](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/6/636454c6c25c781fbd2187b3e16558d5222b94c3.png)