HV Battery Jump

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Old Oct 12, 2021 | 08:58 AM
  #221  
GatorJ's Avatar
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Default Re: HV Battery Jump

Originally Posted by elborak
The one suggestion of note I will add to the process is a small refinement to GatorJ's "remove the rear cargo trim pieces and use a cut-down bit with an offset mini wrench" idea. That approach indeed works great and eliminates any need to remove the HVTB from the vehicle for this process. But if you buy the low profile version instead of the one originally linked there's no need to cut down a bit; the low profile T30 bit in that set fits with no problem on both sides. Makes removal of those two annoyingly placed screws surprisingly easy.

And if you're going to notch the case for the harness to pass through, I recommend adding a bit of heat shrink tubing to better protect against any sharp edges or abrasion. Also acts as a bit of a strain relief if it's snug enough in the notch.

All good suggestions. I edited my large post to include the link to the tool set you located (and purchased a set.). Good find.
 
Old Oct 12, 2021 | 09:48 AM
  #222  
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Default Re: HV Battery Jump

Does anyone have a picture of an assembled HLG-120H-C350A power supply connected to the harness that is attached to the relay? Just want to verify that I'm doing everything correctly. Thanks!
 

Last edited by Ajvanek; Oct 12, 2021 at 10:42 AM.
Old Oct 18, 2021 | 12:30 PM
  #223  
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Question Re: HV Battery Jump

What do y'all think about this harness here for connection to the hv battery?:
Amazon Amazon

I assume diodes could be added as well.

 
Old Oct 18, 2021 | 12:48 PM
  #224  
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Default Re: HV Battery Jump

Originally Posted by Ajvanek
What do y'all think about this harness here for connection to the hv battery?: https://www.amazon.com/Smarkey-Conne...ustrial&sr=1-3

I assume diodes could be added as well.
While that would work, you are getting more and less than you need
You are only getting one end of the connector.
The fuse is probably not needed.
I suspect ring terminals are too large for the screws you are going to connect to.
Also, that type of connector is typically used to connect a 12V batter charger. Someone else might think that is what it's for. I'd prefer a less common connector not associated with 12V circuits.

I think I'd just start with something like this: https://smile.amazon.com/HUIQIAODS-Waterproof-Electrical-Connector-Marine/dp/B07ZK84F8G/ref=sr_1_74?crid=3U5CKE5WQ0E1E&dchild=1&keywords=w iring+plugs+with+2+pins&qid=1634586549&sprefix=wir ing+plug%2Caps%2C193&sr=8-74
 

Last edited by Rex B; Oct 18, 2021 at 12:51 PM.
Old Oct 18, 2021 | 01:04 PM
  #225  
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Default Re: HV Battery Jump

I used these for connectors:

Connectors


 
Old Oct 18, 2021 | 01:05 PM
  #226  
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Default Re: HV Battery Jump

And something similar to these for protective caps:

Caps Caps
 
Old Oct 18, 2021 | 01:27 PM
  #227  
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From: South Dakota
Default Re: HV Battery Jump

Originally Posted by GatorJ
I used these for connectors:

Connectors
would you have a recommendation for 16 or 18awg wire? That's the wire i currently have. i was also looking at this connector:
Amazon Amazon
 
Old Oct 19, 2021 | 12:31 AM
  #228  
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Default Re: HV Battery Jump

I also used XT60H connectors, and these caps.
 
Old Nov 15, 2021 | 07:18 AM
  #229  
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From: South Dakota
Default Re: HV Battery Jump

Originally Posted by S Keith
If you've put the relay cover back on, then I've got nothing for you besides cutting in to the charger wires on the battery side of the diode to check voltage. Exercise extreme caution if you do this.

It might be best for you to just use Forscan with ignition on (no start). You will see voltage, but the current number won't be accurate/meaningful.
Would the prongs that are attached to the high voltage plug on the right side of the battery at the back of the relay be a good voltage testing point? The ones that look kind of tarnished in this photo. Those must be hot while the service plug and relay are in right?

 
Old Nov 15, 2021 | 08:06 AM
  #230  
S Keith's Avatar
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From: Mesa, AZ
Default Re: HV Battery Jump

Originally Posted by Ajvanek
Would the prongs that are attached to the high voltage plug on the right side of the battery at the back of the relay be a good voltage testing point? The ones that look kind of tarnished in this photo. Those must be hot while the service plug and relay are in right?

 


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