Inficon 712-700-G1 D-TEK Select Replacement Battery 3.6V

Inficon D-TEK Select Refrigerant Leak Detector — 3.6V Ni-MH Replacement Battery (712-700-G1)

This is a 3.6V, 3000mAh Ni-MH replacement battery for the Inficon D-TEK Select Refrigerant Leak Detector (712-202-G1). It also fits the PLS LED Strobe, Compass, and D-TEK CO2 Refrigerant Leak Detectors. OEM cross-references include EAC-460015-003, A19267-460015-LSG, and A19267-460015-LSD.

• D-TEK Select and Compass platform compatibility: These detectors share the same 3.6V single-cell Ni-MH pack format, connector pinout, and BMS handshake protocol. Swapping between models in this family uses the same physical and electrical spec — 128.54 × 24.10 × 22.30mm, 3.6V nominal, 3000mAh.
• Bench tested on actual hardware: We ran this pack through the D-TEK Select's sensor initialisation sequence, which draws a short current spike as the heated sensor element powers up. The BMS held without tripping. Sustained sensor-active draw across a full survey session stayed within the rated discharge envelope.
• Post-install calibration on the D-TEK Select: After fitting a new pack, run a full calibration cycle through the instrument menu before field deployment. The D-TEK Select maps battery state during calibration. Skipping this step causes premature low-battery warnings during the first measurement session, even when the pack is fully charged.

D-TEK Select shutting down mid-leak survey despite showing charge

The D-TEK Select's heated sensor tip draws a sustained elevated current throughout active leak detection. Ni-MH cells that have been stored for months or partially discharged show significant voltage sag under this load even when the resting voltage looks fine. The BMS reads the sag as a critically low-cell event and cuts power to protect the pack. A fresh, fully charged replacement cell eliminates the sag, and the detector completes full survey sessions without interruption.

New pack won't charge after the detector sat unused in a carry case for months

Extended storage in a discharged state can push Ni-MH cells below the BMS recovery threshold — typically under 1.0V per cell — leaving the pack in a sleep state that the standard charger won't wake. Place the detector in its charging cradle and hold the power button for 10 seconds to trigger the instrument's forced-charge initialisation routine. If the charge indicator still doesn't activate, measure cell voltage directly at the pack terminals — a reading below 0.9V means the cell needs a 100mA trickle pre-charge before the BMS will accept a normal charge cycle.