What Should My Psr500 Display Read When Checking The Battery Info To See If My Nimh Batteries Have A Full Charge. Should It Be 9 Volts Like The Voltage From My External Power Supply. Or What? Also What Should My Charge Time Be Set To Properly Charge Them And Do I Do This With The Radio On Or Off. Paul1
psr500 & NIMH BATTERIES
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fmon
Silent Key Jan. 14, 2012
A good external battery charger/conditioner may be the best method for recharging and extending battery life.
The actual voltage across the + and - terminals of fully charged set of NiMh batteries is likely about 5.2 to 5.25 volts as each are full at 1.3 v or so.
The wall wart will likely read about 16-18 volts without a load but when plugged into the turned on scanner will be about 8.5 to 9 volts. However, if no demand is placed on the charging circuit, the current demand from the wall wart will be lower. Of course, if the yellow holder is in scanner with batteries at reduced charge, this demand will increase and the wall wart output will be greater in current.
The actual voltage across the + and - terminals of fully charged set of NiMh batteries is likely about 5.2 to 5.25 volts as each are full at 1.3 v or so.
The wall wart will likely read about 16-18 volts without a load but when plugged into the turned on scanner will be about 8.5 to 9 volts. However, if no demand is placed on the charging circuit, the current demand from the wall wart will be lower. Of course, if the yellow holder is in scanner with batteries at reduced charge, this demand will increase and the wall wart output will be greater in current.
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