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First Use

Power options

RD8100 Cable, Pipe and RF marker locators are shipped with the Lithium-ion battery packs disconnected. The transmitter D-cells and optional Li-ion battery pack are packed separately.

The locator can also be powered using D-cell alkaline or good quality NiMH batteries.

The transmitter can also be powered using NiMH D-cell batteries or the optional accessory Li-Ion rechargeable battery pack.

It’s important to set the correct battery chemistry in the locator to optimize performance.

Transmitters can also be powered using optional accessory mains or vehicle power adapters.

On the Locator:

To connect the Li-ion battery pack unlatch the battery compartment.


Open the battery compartment


and plug the battery lead into the battery connector.


Li-ion battery pack connection


NOTE: Fully charge your lithium-ion battery pack before its first use

On the Transmitter:

To fit the D-cell batteries in the transmitter, unlatch the accessory tray. The battery compartment is located underneath the transmitter body. Use the turnkey to unlatch the battery compartment. Insert eight D-Cell Alkaline or NiMH batteries.

D-cell battery trays

Battery status

The locator and transmitter displays provide a battery level indicator. When battery replacement is necessary, the display shows a flashing battery icon.


NOTE: Prolonged use of high power output on the transmitter will reduce battery life.


Removing / fitting battery packs

Locator battery pack:

  1. Open the battery compartment using the release catch
  2. If using a Li-Ion battery pack un-plug the lead connector
  3. Lift the accessory cover slightly and press the battery retaining latch inwards


Press the retaining latch inwards


4. Rotate the battery pack away and up from the latch

5. Repeat on the other side to release the battery pack completely then lift the battery pack away


Repeat then lift the battery pack away


To fit a new battery, lift both accessory covers slightly, then gently push the replacement pack into place until it clicks on both sides, then close the battery pack.


Using the D-cell locator battery holder

The locator can also be powered by three D-Cell Alkaline or NiMH batteries.


NOTE: When installing batteries always observe the correct battery polarity as indicated on the battery tray.


Locator D-cell holder


To insert the D-cells:

  • Open the cell tray and insert 1 D-cell
  • Close the tray and insert 2 D-cells

Transmitter battery pack:

  • Unlatch then remove the accessory tray


Release then remove the accessory tray


  • Turn the release catch, then open the battery compartment



Opening the battery compartment


  • Release the retaining catch by pressing gently, then lift the battery pack away



Press the release catch and lift the battery pack away


  • Line up the battery pack clips with the corresponding recesses on the transmitter body and press into place.



Line up the battery pack and press into position

  • Close the battery pack, turn the retaining latch and replace the accessory tray


Charging the battery packs

mceclip10.pngWARNING!: Only use charging equipment provided by Radiodetection. The use of alternative chargers may cause a safety hazard and/or reduce the life of the battery.

CAUTION! : Do not let your battery completely discharge as this may reduce its life or damage it permanently. If you are not using your equipment for a long period do charge them at least once a month. If you have left your equipment stored for longer than 1 month period and fully discharged the battery, ensure that the battery charger indicates that it is working properly, as for its instructions, and that the battery does not overheat.

mceclip12.pngWARNING!: Batteries can get hot after prolonged use at full output power. Take care while replacing or handling batteries.

mceclip11.pngWARNING!: Do not tamper with, or attempt to disassemble the battery packs.


CAUTION!: If battery failure is suspected or if the battery shows any sign of discoloration / physical damage return the entire unit to an authorized repair center for investigation and repair. Local, national or IATA transport regulations may restrict the shipment of faulty batteries. Check with your courier for restrictions and best practice guidelines. Your local Radiodetection representative will be able to direct you to our authorized repair centers.


You can re-charge your batteries using the Radiodetection mains or automotive chargers.

NOTE: The charging temperature range is 0 to 45 °C, 32 to 113°F. Do not attempt to recharge your batteries outside this temperature range.


Locator Li-Ion battery pack

To recharge the locator battery pack, connect the battery charger to the DC input connector on the front of the battery pack.

Charging the locator Li-ion battery pack

Transmitter Li-Ion battery pack

To recharge the battery pack, remove the pack from the transmitter and connect the transmitter battery charger.

Charging the transmitter Li-ion battery pack



For more information about recharging batteries refer to the instructions that came with your charger.