Defective Battery - Dataman S4 Manual

DATAMAN S4 MANUAL
battery would last over 10 years in an S4 which
was always charged,
and about 2 years in one which was always flat.
Charging from a Bench Supply.
You can also charge your S4 from a D.C. bench
supply. However this
needs caution. S4 is not capable of turning off the
D.C. charging
current; so this must be limited to what the battery
would take continuously
without overheating - 60ma. is safe.The D.C.
positive and negative
connections can be either way round because
there is a bridge in
the charging circuit.
Avoid emulating and charging from a bench-
supply at the same time.
There could be a conflict between system grounds.
<$IBattery;Defective>Defective
Battery.
NICAD manufacturers claim that "deep cycling",
meaning full charges
and discharges, is good for the battery; apparently
this discourages
physical change, the formation of dendrites, which
cause premature
failure.
Electronics lore is that Nicads "learn" the capacity
that their job
requires and refuse to hold more charge. Some
authorities claim this
is not true and at Dataman we have never
observed this effect. What
34 <$IKEY;INFO>INFO<$&INFO> KEY