User guide

Trimble M3 Total Station User Guide 29

Before Going to the Field 3

WARNING – Avoid recharging the battery pack in humid or dusty places, in direct

sunlight, or near heat sources. Do not recharge the battery pack when it is wet. If you do,

you may receive electric shocks or burns, or the battery pack may overheat or catch fire.

WARNING – Although the battery pack (part number BC-65) has an auto-reset circuit

breaker, you should take care not to short circuit the contacts. Short circuits can cause the

battery pack to catch fire or burn you.

WARNING – Never burn or heat the battery. Doing so may cause the battery to leak or

rupture. A leaking or ruptured battery can cause serious injury.

WARNING – Before storing the battery pack or battery charger, cover the contact points

with insulation tape. If you do not cover the contact points, the battery pack or charger

may short circuit, causing fire, burns, or damage to the instrument.

WARNING – The battery BC-65 is not waterproof on its own. Do not get the battery wet

when it is removed from the instrument. If water seeps into the battery, it may cause a

fire or burns.

CAUTION – Before charging the battery pack, read the instruction manual for the quick

charger (part number Q-75U/E).

Note – Charge the battery pack indoors where the ambient temperature is between 0 °C

and 40 °C (between 32 °F and 104 °F). If you try to charge the battery when the ambient

temperature is outside this range, the protective circuit will work and prevent it from being

charged normally.

Note – To prevent malfunction, keep the charging plug clean.

Note – If the CHARGE indicator blinks repeatedly after charging starts, there is a problem

with the battery pack. Do not use or charge the battery pack any further, and contact your

dealer.

Note – If the ambient temperature drops below 0 °C (32 °F) while the battery pack is

charging, the charger stops charging the battery pack. When the ambient temperature rises

above 0 °C (32 °F), charging resumes. Charging will be completed after restarting.

Note – If the CHARGE indicator remains lit for more than four hours, and the ambient

temperature during charging was within the specified operational range (0 °C through

40 °C or 32 °F through 104 °F), there is a problem with the battery pack. Do not use or

charge the battery pack any further, and contact your dealer.

Note – During charging or discharging, the battery pack and quick charger will become

warm. This is normal.

Note – After charging the battery pack, do not recharge it until it has been fully discharged.

Recharging a fully charged battery pack lowers its performance.

Note – If the battery pack is used at low temperatures (below -20 °C or -4 °F), its capacity is

reduced, and it will allow less operation time than a battery pack used at normal (room)

temperature.