D
D Yuniskis
Hi,
One of my portable DVD players uses a (nominal) 7.4V 2600mAH
Li-Poly battery. One cell appears to be toast (*loaded* voltage
RAPIDLY drops from ~3.5V to ~1.8V after ~10 minutes of use;
other cell holds fast at ~3.5V).
I was thinking of replacing them with a pair of 18650's
as they occupy almost exactly the same space (different
form factor, same volume -- of course!).
It is my understanding that the charging technique for
LiPoly and LiIon are identical (?). I'd prefer not to have
to reengineer the charger (microcontroller controlled).
Given my druthers, I'd replace with NiCd but that would
require way too much work!
Any other pointers to watch for (besides the usual, "Oh
My God! You can burn your house down!!")?
Thanks!
--don
P.S. pointers to a source of reliable 18650's would also
be welcome.
One of my portable DVD players uses a (nominal) 7.4V 2600mAH
Li-Poly battery. One cell appears to be toast (*loaded* voltage
RAPIDLY drops from ~3.5V to ~1.8V after ~10 minutes of use;
other cell holds fast at ~3.5V).
I was thinking of replacing them with a pair of 18650's
as they occupy almost exactly the same space (different
form factor, same volume -- of course!).
It is my understanding that the charging technique for
LiPoly and LiIon are identical (?). I'd prefer not to have
to reengineer the charger (microcontroller controlled).
Given my druthers, I'd replace with NiCd but that would
require way too much work!
Any other pointers to watch for (besides the usual, "Oh
My God! You can burn your house down!!")?
Thanks!
--don
P.S. pointers to a source of reliable 18650's would also
be welcome.
