MC>                                 9V 1A   9V 100ma
 MC> without a charge                18.4 V  12.3 V
 MC> plugged in the PRO43            13.8 V  10.3 V
 MC> plugged in the PRO43 (162.5500) 13.2 V   9.2V
 MC> I'll keep the 100ma in the scanner as much as possible and only
 MC> use the 1A for short kickin when the PRO43 display is blinking.
BF>You may be missing a very important part of the charger 
BF>battery relationship.
No offense, but you're the one who's made the error...
BF>If you offer it 1 amp (as you are with that 1A charger), the
BF>battery will happily sit there and suck it ALL up.  Since
BF>that is far above it's normal charge rate, it will present
BF>very little load to the charger, and thus the voltage will
BF>remain high (too high).  The battery is, then, attempting to
BF>charge itself at 18 volts, 1 amp.  Not good.
For starters, the larger adapter puts out 18 volts at ZERO amps,
and only 9 volts at one amp.  There is no way to get 18 watts
out of the adapter.
You're also ignoring the fact that the '43 has a 22 ohm
resistor in the charging circuit.  You'd need at least a
32 volt, 1 amp supply to push an amp through that resistor,
and it wouldn't be pretty.
Using Marc's measurements...
 MC> plugged in the PRO43            13.8 V  10.3 V
...with 13.8 volts at the charging jack, no more than 220 mA
is flowing through the batteries...
 MC> plugged in the PRO43 (162.5500) 13.2 V   9.2V
...and with 13.2 volts, about 190 mA of charging current will flow.
BF>In this case, those batteries are taking a heck of a
BF>beating, even for a short charge period.
No, they're not.  Short periods of 200 mA charging (when
the cells are discharged) will not hurt them.  As Marc said,
he knows enough to use the smaller adapter most of the time.
BUT - I would be concerned about the 8.2 volts being dropped
across the 43's 5 volt regulator when 13.2 volts are present
at the charging jack.  Dissipating half a watt or more isn't
the way to ensure a long regulator life.
As for the smaller adapter...
 MC> plugged in the PRO43            13.8 V  10.3 V
...with the scanner off, it only puts out about 60 - 70 mA,
very nearly a perfect charging rate...
 MC> plugged in the PRO43 (162.5500) 13.2 V   9.2V
...and with the scanner on, only 20 mA of charging current;
rather low, but it doesn't overload the 100 mA adapter.
...Andy
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