Bill Dube via EV wrote:
Probably the best plating to use would be Alodine (AKA Bonderite). Not
terribly difficult to do. A bit pricey, but you would only have to coat
a tiny area.
Alodine is the conductive, gold/brown plating used on aluminum aircraft
parts. Great for corrosion prevention.
Probably the best plating to use would be Alodine (AKA Bonderite). Not
terribly difficult to do. A bit pricey, but you would only have to coat
a tiny area.
Alodine is the conductive, gold/brown plating used on aluminum aircraft
parts. Great for corrosion prevention. Conducts very well (unlike
Bill Dube via EV wrote:
Did you lightly sand (or Scotchbite) each terminal and apply a thin
coating of NoAlOx before connecting? No? Then you have to redo all the
connections. They will give you no end of grief. (Ask me how I know. :-) )
If you don't do this connection treatment, the dissimilar
You are aware that 3.00V resting is considered dead right?
Also, the 3C current rating is very optimistic. Drawing 216A for more
than a few seconds is not good for life.
Even drawing 1C (72A) on a continuous basis will lead to a short life.
Since you are running a low voltage pack, I'm
Thanks for the suggestions - I've definitely got some things to try - I'm
running a cycle on the suspect cell on the PowerLab8 tonight; will do a
"good" cell after that. I also need to redo the connections, as Bill
suggested. I'll report back in a while after I know more; thanks again!
--
Sent
Did you lightly sand (or Scotchbite) each terminal and apply a thin
coating of NoAlOx before connecting? No? Then you have to redo all the
connections. They will give you no end of grief. (Ask me how I know. :-) )
If you don't do this connection treatment, the dissimilar metals will
corrode,
I would individually test the suspect cell's actual amp-hour capacity, and
compare it with factory specs, AND also compare it witth with the actual
capacity of one or more other cells in your battery. If it's substantially
lower than either, I'd say a warranty claim is justified.
Good luck!
Philip,
Another problem may be a bad connection between the cells, so that a
cell voltage is seen including the drop in the wire.
But yeah, you can have a bad cell as well, a quick way to check is to
watch what the BMS says during driving - does the bad cell
also drop quickly?
Another way to