Minelab GP 3500 Service Manual download pdf (Page 11)

THE MINELAB ‘GP extreme’

BATTERIES

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The Battery

The 6v DC rechargeable battery should provide enough power to

operate the detector for 10-12 hrs, when fully charged.

The battery may be recharged at any time during the discharge cycle.

It is very important to fully charge the battery before storage.

Do not leave a battery fully discharged for longer than one day.

CAUTION Never use a 12v DC battery because this would

damage the detector. This damage is not covered by

warranty.

Low Battery Indication

If battery level drops below the desired power to give full function, a

series of signal pulses are given at 0.5 second intervals.

Charging the battery

STEP 1 Turn the detector Off before disconnecting the battery.

STEP 2 Disconnect the battery cable from the detector and connect

to the appropriate charger.

Battery Chargers

Two types of battery chargers (Mains and 12v Vehicle Charger)

are supplied.

BATTERY AND CHARGING

BATTERIES AND CHARGING

Do not leave the mains charger

on for extended periods because

reduced battery life may result.

Caution

When charging, the battery must

be kept in an upright position.

Important

THE MINELAB ‘GP extreme’

BATTERIES

BATTERIES AND CHARGING

Mains Battery Charger

The mains battery charger will charge the battery from local mains (AC)

power outlets.

STEP 1 Connect the mains charger to a mains outlet.

STEP 2 Switch the mains outlet on.

Check the charger nameplate; it should be rated at 500mA

or1000mA. The 500mA charger will recharge a completely flat

battery in approximately 20 hours. The 1000mA charger will

recharge a completely flat battery in approximately 10 hours.

Partially discharged batteries require a shorter period to recharge.

Allow approximately 1.5 to 2 hours charging for each hour the

battery was in use if using a 500mA charger and about 0.5 to 0.75

hours for each hour usage on a 1000mA charger.

Vehicle Battery Charger

The vehicle battery charger will charge the battery from the cigarette

lighter socket of most motor vehicles.

STEP 1 Connect the charger to the cigarette lighter socket and turn

the ignition switch to Accessories.

This supplies 12v DC power to the cigarette lighter socket. This voltage

is converted by the charger to charge the detector battery. A red LED

indicator will flash while the battery is charging. When the battery is flat

the LED may flash fast enough so as to appear constantly on. As the

battery charges, the LED will flash at a slower rate.

STEP 2 Leave the battery to charge for approx. 10 hours using this charger.

If the battery voltage of your vehicle drops below 11v, the charger

will stop operating. Therefore the battery charger should not flatten

the vehicle battery.

Check that your vehicle battery is in good condition before camping

in remote areas.

Run your engine above idle speed for at least 30 minutes each day

to keep your vehicle battery charged.

The Vehicle Battery Charger is

designed for use with vehicles

which have a negative earth

electrical system.

Most cars manufactured after 1970

should have negative earth electrical

system.

Connecting the charger to a vehicle

with a positive earth system will

cause the fuse in the cigarette lighter

plug to blow and the LED indicator

will not light.

Caution

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Minelab GP 3500 Service Manual Page 11

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