diy solar

diy solar

FB marketplace would you buy these?

S

Smeeg

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Oct 23, 2022
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This is the description listed for $400 not sure if that’s each or for both what do you think.

“LIFEPO4 BATTERY MODULE 48V 100ah (TOTAL OF 2 UNITS)


these Units sell for over $1800 each, wit a grand total of $3600





I have not tested them because they were removed from a corporate office and are EXTREMLY HEAVY ...Please don't ask me any details regarding its functions because frankly I don't know. “




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I would personally make that choice, but I'm okay with the risk of setting that $400/$800 on fire.

If they'll let you open the battery up on arrival and measure individual cells, and all are > 3.0V, then yep.

Be prepared to replace BMS, use cells from both to build one good one, etc.
 
Those look very similar to SOK batteries. Looks like a shipping damage issue caused these to get refused so this person bought them for pennies from the warehouse where things like that go. Wherever they came from whoever has them probably paid almost nothing (if anything) for them so they might jump on a $100 for the pair after a week or two.

Breakers are in the "ON" position and the display is not lit up. Step one would be turn the breakers off, push RST button for a couple of seconds and see if the display lights up. If it does you can fumble through menu and find SOC and individual cell voltages. Wearing PPE you could then turn the breakers on and see if there is voltage the terminals.
 
They look like they are completely dead. I wouldn't buy it.
 
sunshine_eggo said:
I would personally make that choice, but I'm okay with the risk of setting that $400/$800 on fire.

If they'll let you open the battery up on arrival and measure individual cells, and all are > 3.0V, then yep.

Be prepared to replace BMS, use cells from both to build one good one, etc.
Click to expand...

If they need a new BMS what would I use I’m trying to get a price point reference if you have a link?
Is there any way to tell cycle count?
 
Smeeg said:
If they need a new BMS what would I use I’m trying to get a price point reference if you have a link?
Is there any way to tell cycle count?
Click to expand...
BMS's range from $50-300 depending on features.

On the screen there should be a page showing cycle count.
 
www.aliexpress.com

1106.0US $ |Virtue Energy Ithium Iron Phaspate Battery48v Lifepo4 48v 100ah Battery Pack 48v Lithium Battery Pack 48v Lithium Battery Charge - Battery Packs - AliExpress

Smarter Shopping, Better Living! Aliexpress.com
www.aliexpress.com www.aliexpress.com

www.msn-battery.com

China Telecom Lihthium Battery Manufacturers Suppliers Factory - Made in China

MINGHONG is one of the most professional telecom lihthium battery manufacturers and suppliers in China. If you're going to buy high quality telecom lihthium battery made in China, welcome to get pricelist and quotation from our factory. For price consultation, contact us.
www.msn-battery.com www.msn-battery.com
 
Danke said:
www.aliexpress.com

1106.0US $ |Virtue Energy Ithium Iron Phaspate Battery48v Lifepo4 48v 100ah Battery Pack 48v Lithium Battery Pack 48v Lithium Battery Charge - Battery Packs - AliExpress

Smarter Shopping, Better Living! Aliexpress.com
www.aliexpress.com www.aliexpress.com

www.msn-battery.com

China Telecom Lihthium Battery Manufacturers Suppliers Factory - Made in China

MINGHONG is one of the most professional telecom lihthium battery manufacturers and suppliers in China. If you're going to buy high quality telecom lihthium battery made in China, welcome to get pricelist and quotation from our factory. For price consultation, contact us.
www.msn-battery.com www.msn-battery.com
Click to expand...
Thanks! anyone know if this brand is considered ok? Or what kind of cells they use?
 
Lt.Dan said:
What makes them look dead?

I would buy them. But I'm a risk taker like @sunshine_eggo lol.
Click to expand...

Looks like it's been opened before. The power switch/breaker is in the ON position and screens are dark. One of the screens looks like it's cracked/busted.
 
Tell him you'll give him $150/each 300.00 for the lot. Also make it sound like you are doing him a favor, make some bs about safety and what not, yeah make some FUD up and see how low the price you can get. :)
 
Alkaline said:
Tell him you'll give him $150/each 300.00 for the lot. Also make it sound like you are doing him a favor, make some bs about safety and what not, yeah make some FUD up and see how low the price you can get. :)
Click to expand...

Yeah. I was assuming $400 for the pair. If he let me open the cases up and confirm all cells are 3.0V or higher, I'd give the asking price... hesitantly... :)
 
I bought them. One worked with a quick fix but has a slightly wonky BMS. The one with the broken display I haven't touched yet

Adventures to follow as they develop

diysolarforum.com

What did I just buy for $400? TWO 48v Server Rack Batteries

I was looking at Facebook Marketplace earlier today and came across someone selling a PAIR of server rack batteries in unknown condition for $400. Figured at that price I couldn't lose, so I hopped in the car and snagged them. Cases are pretty beat up looking with bent rack ears and some dents...
diysolarforum.com diysolarforum.com
 
How much of a fight did they put up when you offered 400 for the pair?
 
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