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Old 09-20-2019, 09:12 AM   #1
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used Valence LiFePo 4

I have 4, Valence U27-12XP 12 volt 138Ah batteries wired in parallel. They are used and I got the internal BMS talking to my computer yesterday. All 16 cells are within .006 volts of each other. Total charge of each module (4 cells) is 99.6%. It also shows total cycles of each module mine are 117,142,165, and 195. Not bad for a projected 3000 cycle life. Lots of info available that I haven't deciphered yet.

Crappy picture of one of the modules.

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Old 09-20-2019, 09:36 AM   #2
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Nice! If we ever go full-time, I'd be looking very closely at this. Right now my charger doesn't support Lithium, so it's more than just a simple battery swap. Awesome, though!

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Old 09-20-2019, 11:27 AM   #3
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The Valence system looks better than most.

The secondhand units seem to be sold with lots of lifespan still in them, test out at decent results

but are selling for 80%+ what I'd want to pay for brand new.

Personally I'm not buying secondhand cells for more than 25-30% of the new price, just too risky.
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Old 09-20-2019, 11:30 AM   #4
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Valence

Great to hear these stats. Where are these batteries manufactured? Is there any info on that?


Mike
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Old 09-20-2019, 12:18 PM   #5
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Originally Posted by john61ct View Post

but are selling for 80%+ what I'd want to pay for brand new.
I paid less than 25%
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Old 09-20-2019, 12:26 PM   #6
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Originally Posted by mrpincher View Post
Great to hear these stats. Where are these batteries manufactured? Is there any info on that?


Mike
I think at least assembled in Europe? A123, Valence and Super B are now all part of Lithium Werks.

Dutch, but I believe all the factories are China of course.
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