A hex tool is required to tighten and loosen the retaining screw.
Tighten the screw 1-2 turns using 3-4 in-lbs of torque. Do not
overtighten the screw.
Replacing the Battery Pack
The alkaline and rechargeable battery packs can be changed in
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Press and hold C to deactivate the detector.
If using the retaining screw, loosen it 1-2 turns. Push
the battery release latch toward the top of the
detector to release the battery pack.
From the top of the battery pack, lift upward to
Before replacing the battery pack, ensure the seal on
the instrument and battery pack is free of debris and
Insert a new battery pack. Insert the bottom of the
battery pack first, then lower the top into place. Press
until the release tab engages. Tighten the retaining
screw if required.
Charging the Rechargeable Battery Pack
To avoid personal injury and/or damage to the detector,
adhere to following:
• Charge only in a safe area that is free of hazardous gas
within temperatures of 32°F to 104°F (0°C to 40°C).
• Charge the battery immediately when the detector emits
a low battery alarm.
• Charge the lithium battery pack using the BW supplied
charger and charger adapter only. The charging adapter
is specific to your region. Use of the charging adapter
outside your region will damage the charger and the
detector. Failure to adhere to this caution can lead to
fire and/or explosion.
• Charge the lithium battery after each workday.
• Ensure the charging connector surface is free of debris
• Do not use an external power supply or charger to
operate the detector for periods greater than 24 hours. If
powering from an external source, power cycle the
detector once every 24 hours to ensure proper
operation. To power cycle the detector, press and hold