Hi, I may have wasted money.

[TaliaDPerkins]

So, I bought these:

Amazon.com

Described as

32 Pack ExpertPower 3.2V 304Ah LiFePO4 Lithium Battery Cell | UL2580 A+ Grade 4000-7000 Cycles & 10-Year LifeSpan | Deep Cycle Rechargeable & EV Grade | Home, Cabin, Off-Grid, Solar, Golf Cart, ATV​

Not knowing to look further I saw Grade A and bought them. Between Amazon points and getting I think it's 5% back on the account I pay from, seemed like effectively 10% off one way or another. Is that 9.5 cents per wH ? And does anyone know what the odds are I get a bad cell or three? Or are they all iffy?

I'd love feedback here before they ship.

Thank you, Talia Perkins

 

[TaliaDPerkins]

An aside, I bought the Daly 16S 5A active Balancer/Equalizer and their 400A Smart 16S BMS. I think the greatest draw any BMS can see is <150A even briefly, so, it should be bulletproof?

 

[robbob2112]

Chances are they are exactly what they claim to be. Expertpower is a company that primarily targets the RV market by reselling items others build.

You paid $92 a cell which is a fair price, but with free shipping it seems fair. Most others sell them with bus bars and bolts packaged in the box which may account for some

Don't be folded by the marketing, they just inventory and ship stuff without testing or even looking in the boxes.

EVE LF304 Grade A Cells - 3.2V LiFePO4 304Ah Battery

Buy high-quality EVE LF304 Grade A Cells, a 3.2V LiFePO4 304Ah Battery with flexible bus-bar, nuts and bolts included. Designed for longevity with 10+ years design life, 4,000 cycles, and a rechargeable feature. Get the full excel report by request.

www.18650batterystore.com

3.2V 304Ah LiFePO4 Cells32-Pack

3.2V 304Ah 300Ah LiFePO4 Prismatic A+ Grade Cells, UL 2580 listed, Off Grid, Residential, Home, Cabin, Back-Up, EV Grade - Electric Vehicle, Golf Cart, ATV

www.expertpower.us

 

[TaliaDPerkins]

Chances are they are exactly what they claim to be. Expertpower is a company that primarily targets the RV market by reselling items others build.

You paid $92 a cell which is a fair price, but with free shipping it seems fair. Most others sell them with bus bars and bolts packaged in the box which may account for some

Don't be folded by the marketing, they just inventory and ship stuff without testing or even looking in the boxes.

EVE LF304 Grade A Cells - 3.2V LiFePO4 304Ah Battery

Buy high-quality EVE LF304 Grade A Cells, a 3.2V LiFePO4 304Ah Battery with flexible bus-bar, nuts and bolts included. Designed for longevity with 10+ years design life, 4,000 cycles, and a rechargeable feature. Get the full excel report by request.

www.18650batterystore.com

3.2V 304Ah LiFePO4 Cells32-Pack

3.2V 304Ah 300Ah LiFePO4 Prismatic A+ Grade Cells, UL 2580 listed, Off Grid, Residential, Home, Cabin, Back-Up, EV Grade - Electric Vehicle, Golf Cart, ATV

www.expertpower.us

So they are probably no worse than run of the mill for "Grade A", and Iikely buy accessories another time. Thank you!

 

[robbob2112]

It wouldn't surprise me at all if you get bus bars and the lot in the boxes along with factory reports

 

[42OhmsPA]

Not a bad price for the dual terminals but you could save a few bills if you wanted single terminals.
Add about 5% to the total to cover the transaction fee.

USA STOCK EVE 304Ah 3.2V LiFePO4 Prismatic Cell Grade A EV Class with Laser-Welded M6 Studs

Note:This link is only for orders within the Continental United States.You can easily track your order status on our website.After payment, we'll ship your order within 2weeks. It will be delivered to your door in 2-5 days via FedEx/UPS, with no tariffs.Orders for USA stock pick-up can only be made

www.docanpower.com

 

[TaliaDPerkins]

It wouldn't surprise me at all if you get bus bars and the lot in the boxes along with factory reports

Not a bad price for the dual terminals but you could save a few bills if you wanted single terminals.
Add about 5% to the total to cover the transaction fee.

https://www.docanpower.com/index.php?route=product/product&product_id=505[/URL

http://Thank you both! Happy New Year!

 

[Supervstech]

So, I bought these:

Amazon.com

Described as

32 Pack ExpertPower 3.2V 304Ah LiFePO4 Lithium Battery Cell | UL2580 A+ Grade 4000-7000 Cycles & 10-Year LifeSpan | Deep Cycle Rechargeable & EV Grade | Home, Cabin, Off-Grid, Solar, Golf Cart, ATV​

Not knowing to look further I saw Grade A and bought them. Between Amazon points and getting I think it's 5% back on the account I pay from, seemed like effectively 10% off one way or another. Is that 9.5 cents per wH ? And does anyone know what the odds are I get a bad cell or three? Or are they all iffy?

I'd love feedback here before they ship.

Thank you, Talia Perkins

Be VERY wary when torquing the bolts down on these.
DO NOT put any downward force on the bolts as you are torquing them.
The odd angle the terminals were welded to the lugs are fragile to downward force, or high torque.

 

[OTRwSolar]

Oops

 

[Pierre]

Be VERY wary when torquing the bolts down on these.
DO NOT put any downward force on the bolts as you are torquing them.
The odd angle the terminals were welded to the lugs are fragile to downward force, or high torque.

I prefer stud terminals of at least 8mm dia.
My cheap 100Ah cells @ $29 ea are still working every day for the last 3 years. Built a few packs with mixed shape / size and make of cells over the years , as long as they are of the same capacity rating.
I also have revived LFP cells that arrived at my workshop with voltages as low as 0,7v .
OP : do not worry too much - you should be fine.