Understand. Your approach makes sense for you requirement. In my
case, the cells are in reserve/backup circuit. Load is applied randomly
for varying period. There is no meaningful indication over a given
period how much capacity has been used, etc. etc.
Otis Wright
Godfrey DiGiorgi wrote:
Perhaps I don't understand the circumstances of your need adequately.
It's certainly too much trouble for my uses to test and measure
battery status.
Whenever I buy batteries, particularly Li disposables, I put a date
on them and put them into my battery box. I know Li disposables have
a 6-7 year shelf life ... after a year, they will rarely have lost
more than 5% total capacity. I rarely do this, but if I have been
using a particular set and taken it out of the camera, I mark it with
a red dot to say "partially used". The reason I rarely do this is
that it's generally speaking not common to just swap batteries in and
out with Li disposables. Most of the time you just keep them in the
camera until they are exhausted and replace them.
When putting together equipment for a trip or field session and
counting on Li disposables, I just make sure I have an appropriate
number of unused new batteries as backup. I've never been caught out.
Godfrey
On Nov 3, 2005, at 9:19 AM, Otis C. Wright, Jr. wrote:
Nothing, if you understand what you get when you read open circuit
voltage and these results are acceptable for your application.
Depends on the accuracy you want. My experience has been that
testing batteries under load gives more accurate indication of
status. I could, but am not interested in doing so, assemble a
load/meter combo using the manufacturers data. Assembly is
relatively easy. Calibration/test and packaging for field use takes
time I'd rather spend doing something else. I was looking for a
prepackaged reasonable quality unit for field use in assessing cells
used randomly in a standby/backup application.
Otis Wright
Godfrey DiGiorgi wrote:
What's wrong with a simple voltmeter?
Godfrey
On Nov 3, 2005, at 8:23 AM, Otis C. Wright, Jr. wrote:
Anyone have experience with a good tester for nonrechargeable
Lithium AA batteries?
Thanks in advance.
Otis Wright
