White’s Electronics Prizm Combined - Manual (Page 7)

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Prizm™ II • III • IV * V
mittent.use,.temperature,.control.settings,.target.indications,.battery.
quality,.battery.condition.upon.purchase,.and.shelf.life...One.may.add.
or.subtract.as.much.as.50%.depending.upon.the.above.variables...It.is.
always.wise.to.carry.back.up.batteries.when.traveling.far.from.home...
6...Good.quality.rechargeable.transistor.9-volt.batteries.may.be.
purchased.separately.for.use.in.your.Prizm...Typically.rechargeable.
transistor.9-volts.will.fall.short.of.20.hour.continuous.search.time.by.
as.much.as.30%...Expensive.types.may.exceed.this.alkaline.life.rating...
Either.way.their.rechargeable.option.is.desirable.for.avid.(everyday).
searching...White’s.Electronics,.Inc..has.chosen.not.to.compete.in.the.
transistor.9-volt.rechargeable.battery.market...We.would.suggest.
common.reputable.brands.and.retailers.for.such.systems.