No. There are lots of people that use the name Amy in China, but no matter which one it is, the answer is no. It's quite toxic to inhale.unused lf280k unswollen (AMY) release fluid with an odor like acetone.. are they safe to use?
it came out after i put them horizontally on the floorIs it leaking from the vent valve on the top of the battery?
I will not use it.
I would tend to doubt it is coolant from welding, wouldn't all cells smell if it was?View attachment 98267
The ring was off.. amy is telling me it maybe the coolant used with welding
What do you think guys?
I had that happen when I assembled a pack horizontally. It smelled like Either. The pack has been reassembled with all cells vertical and the cell is performing well.it came out after i put them horizontally on the floor
The fact you are asking means you are going to likely use it. The up in flames section here has an example of what happens when you place too much weight on the terminals.i have a cell that leaked several drops of liquid from the negative terminal, cell wasn't packaged properly and a heavy load places on top of pack, and this pushed the terminal -- seller is sending a replacement cell, and am wondering if that particular cell could be used at all, or its still toxic?
the leakage has stopped
thanks for the heads up, fire??, not worth the risk!The fact you are asking means you are going to likely use it. The up in flames section here has an example of what happens when you place too much weight on the terminals.
Last fire.. :-(
Last week we had a nasty fire. I worked for months, used only high quality materials, tinned silicone wire that self fuses at 10A, and weeks between each step of construction to be absolutely sure things are safe The lower layer was good. Might look a mess with the wires, but absolutely safe...diysolarforum.com
They are not grade A cells, but rather grade B cells. The terminology is confusing and should instead be: 1. Passed test Vehicle grade cells. 2. Factory reject Storage grade cells.I’ve recently received 30 pieces EVE LF280K cells.
The cells were sold as grade A-, which was defined as being different from grade A by having a non-matched capacitance in the range 276-284 Ah.
The cells all have an intact QR code that indicates manufacturing dates between Nov 21 and March 22.
Basically, all cells show bulged/swollen over pressure valves.
For one cell I’ve removed the blue plastic cover. The bulging becomes specially obvious when looking at the bends in the aluminum at the edges.
View attachment 100631
Three cells did show stains at the blue plastic cover just after delivery. A fourth cell showed such stains after performing a capacitance test. For one of the former 3 cells I noticed a tiny amount of a colorless liquid at the location of the stain during the 1st charge cycle.
View attachment 100632
In my opinion these stains occur when tiny amounts of electrolyte leak from the cells and the contained solvent attacks the glue at the backside of the blue plastic cover.
The seller claims that the bulged over pressure valves are a “normal” variation during manufacturing. Given that my cells seem to be from a wild collection of manufacturing dates this doesn’t seem plausible to me.
It would be of great help to me if other owners of similar EVE LFP cells could comment if they have seen such swollen over pressure valves and stains at the blue plastic cover.