Using the Dual Slot charger

The Trimble Dual Slot charger can charge up to five Trimble S Series Total Station batteries one after the other.

The charger operates between 0 °C (32 °F) and 40 °C (104 °F). Charging a battery at temperatures in the range of 0 °C (32 °F) to 5 °C (41 °F) will take longer than charging at room temperature.

TIP – You can also charge the Trimble 7.4 V Li-Ion batteries used in the Trimble MultiTrack™ Target and the Trimble Active Track 360 Target using the dual slot charger.

CAUTION – Before charging or using the battery it is important that you read and understand the battery safety and environmental information. See Battery safety.

  1. Place the charger on a hard, flat and level surface, to ensure that there is airflow under the charger.

    CAUTION – Ensure that nothing obstructs the vents in the back and bottom of the charger. The bottom of the charger is hot during charging.

  2. To apply power to the charger, use the AC to DC converter or 12 V cigarette plug. The charger scans the slots for a battery.

  3. Place the battery in any of the slots. The red light turns off (can take up to 5s). For an explanation of the LED display, see LED status indicator.

  4. Charging takes approximately 3 hours per battery at room temperature. If two batteries are placed in the charger the batteries will be charged one at a time.

Leave a deeply discharged or shorted battery overnight in the charger to attempt to revive the battery. A shorted battery is typically revived as soon as the slot is scanned. If the Red LED turns off, the battery is revived. If the red LED stays on, the battery is no longer functional and needs to be replaced.

Beside each slot are two LED indicators (red and green) to display the battery status.

1 Red LED
2 Green LED
3 Conditioning button
4 Conditioning button
5 Red LED
6 Green LED
Status Red LED Green LED

No battery detected (or battery defective)

ON

OFF

Battery detected (charging not started)

 

 

  • Conditioning not required

 OFF OFF

  • Conditioning required

 FLASHING OFF
Charging in progress    

  • Conditioning not required

 OFF FLASHING

  • Conditioning required

 FLASHING

FLASHING
Conditioning in progress ON FLASHING
Conditioning done (battery fully charged) ON ON
Battery fully charged    

  • Conditioning not required

 OFF ON

  • Conditioning required

 FLASHING ON

After a number of incomplete charge/discharge cycles the power gauge in the Smart Battery becomes less accurate. The battery is still safe to use, but the inaccuracy of the power gauge may decrease the battery run time in the field. Then conditioning is required.

The need for conditioning is read out from the battery by the charger and indicated by a blinking red LED. Only batteries that require conditioning can be conditioned.

To condition the battery:

  1. Press the conditioning button under the battery charger. There is one button for each slot. The red LED becomes solid and the green LED starts to flash. Release the conditioning button.

  2. The conditioning cycle begins. This involves:

    1. Charging the battery completely.

    2. Discharging the battery until the voltage is below the low-end conditioning threshold.

    3. Charging the battery again.

    CAUTION – The bottom of the charger is hot during conditioning. Do not touch the bottom plate.

    Ensure that the vents in the back of the charger are unobstructed and that the charger is on a flat and level surface.

  3. Conditioning a single battery can take up to 24 hours.

NOTE – If you press the conditioning button again when conditioning is in progress, you cancel conditioning. To succeed, a conditioning cycle must be uninterrupted.