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LS600HL DIY Hybrid Battery replacement(using Prius cells)

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Old 08-04-19, 08:27 AM
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argonfatl
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Originally Posted by sdls
I'm tempted to print and mark up your drawing in red ink. It doesn't meet ASME Y14.5M-1994 standards.
If you have the experience I would appreciate if you can do proper drawing.
Old 08-05-19, 10:42 AM
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VQT
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Have you complete the install yet? Very good idea.
Old 08-24-19, 11:40 AM
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I was working on compression bracket. I will post update next week
Old 08-28-19, 10:34 AM
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Finally I got brackets. Two battery in series shows 15.4V


Old 08-28-19, 04:35 PM
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Dry fit

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Old 09-02-19, 06:54 AM
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nice work !!
Old 09-02-19, 07:34 AM
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new battery a little bit taller but it fits in original space in the trunk. The only concern is the air flow. I will add some foam insulation to direct air flow. The total voltage on battery now is 310v
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Old 09-04-19, 08:16 AM
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Installed battery in the car. Everything fits ok. Started the engine and tested voltage reading. Total voltage looks good(300-340v) but individual cell voltage jumping. That means I have bad connection on come BMS wire. I will open again and retest connection.

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Old 09-05-19, 04:23 AM
  #24  
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Hi. I see some unusual reading pattern. Looking for a logical explanation. Let me know if you have any idea
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Old 09-05-19, 05:30 AM
  #25  
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Did you charge the cells individually or did you pair them up and charge them as a pair? It's very important that the modules are very even before reinstallation. Did you balance the entire pack by tying all the negative leads together and positive leads the same?

Also, how did you vent the battery cells? It seems like it would be very complicated with so many vents on the top in lots of places.
Old 09-05-19, 05:58 AM
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Originally Posted by JiffyPop
Did you charge the cells individually or did you pair them up and charge them as a pair? It's very important that the modules are very even before reinstallation. Did you balance the entire pack by tying all the negative leads together and positive leads the same?

Also, how did you vent the battery cells? It seems like it would be very complicated with so many vents on the top in lots of places.
I charged them individually. But I didn't balance them. I will do all that this week. Question why is a distinguished pattern on reading. I did not worked on vets. I planing on using Prius vent duct
Old 09-05-19, 07:18 AM
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Hello Argonfatl, I am reading this thread for the first time, and am very intrigued by your project. I am unable to help with your technical issues, but wish you complete success in this project. I am guessing you are technically knowledgeable and skilled in this topic. I admire tinkerers like you who are willing to take a risk and spend lots of time and money to find a cheaper alternative to the LS600 hybrid battery. This is not a viable option for most folks, however. Can you estimate your total investment in materials and time on this project? Thanks, and Good luck!
Old 09-05-19, 07:31 AM
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Originally Posted by comotiger
Hello Argonfatl, I am reading this thread for the first time, and am very intrigued by your project. I am unable to help with your technical issues, but wish you complete success in this project. I am guessing you are technically knowledgeable and skilled in this topic. I admire tinkerers like you who are willing to take a risk and spend lots of time and money to find a cheaper alternative to the LS600 hybrid battery. This is not a viable option for most folks, however. Can you estimate your total investment in materials and time on this project? Thanks, and Good luck!
Thanks for kind words.
I paid $600 for battery cells/ $250 for custom brackets/ around $100 for small parts.
It's hard to count time because I do it when I have a minute. Disassemble was around 3h. Everything else probably 10h together.
I try to take my time and not rush to avoid mistakes.
I hope when I will done it's provide information for somebody who can make it easier.
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Old 09-06-19, 06:13 PM
  #29  
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I find problem. I didn’t connect all the way connector. After fixing it everything works good. I will do some testing to make sure. I want to make sure cooling working as should.
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Old 09-06-19, 08:50 PM
  #30  
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Like comotiger, I find your experiment intriguing.

I, too, wish you every success.

Thanks for for sharing and the pictures.


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