Radio Shack Pro-164 Manual page 7

To install batteries:
1.. Slide.open.the.battery.compartment.cover.
on.the.back.of.the.scanner.
2.. Place.4.AA.batteries.into.the.correct.battery.
holder.matching.polarity.symbols.(+./.-):
•. Black.–.Alkaline.(non-rechargeable)
•. Yellow.–.Rechargeable..
3.. Place.the.battery.holder.into.the.battery.
compartment.and.replace.the.cover.
To charge batteries:
1.. Install.rechargeable.batteries.
2.. Connect.an.external.power.source.to.the.
PWR DC 9V.jack..Using.the.scanner.while.
charging.will.increase.charge.time.
Battery
Ni-MH
Ni-Cd
Ni-Cd
. Do.not.overcharge.batteries..Overcharging.
shortens.battery.life..
• Each battery holder fits only one way. Do
not.force.it.
•. Use.only.fresh.batteries.of.the.required.size.
and.recommended.type..Do.not.mix.old.
and.new.batteries,.different.types.(alkaline.
or.rechargeable),.or.rechargeable.batteries.
of.different.capacities.
•. Remove.old.or.weak.batteries..If.you.will.
not.use.the.scanner.with.batteries.for.a.
month,.remove.the.batteries..Batteries.
can.leak.chemicals.that.destroy.electronic.
circuits.
•. Always.dispose.of.old.batteries.promptly.
and.properly..Do.not.bury.or.burn.them.
Current Charge.Time
1600.mAh
600.mAh
850.mAh

16.hours
6.hours
8.hours