Imada DST-11 4.8V Ni-MH Replacement Battery 482-BH3PER

Imada DST-11 Digital Force Gauge — 4.8V Ni-MH Replacement Battery (482-BH3PER)

This is a 4.8V, 2000mAh Ni-MH rechargeable battery for the Imada DST-11 Digital Force Gauge. It replaces OEM part 482-BH3PER and restores full power to the handheld measurement instrument. The DST-11 measures tensile and compressive forces in quality control and product testing environments.

• DST-11 compatibility: The DST-11 uses a 4.8V Ni-MH pack to supply the measurement circuit, load cell amplifier, and display simultaneously. Voltage and connector geometry must match the OEM spec exactly — this pack meets both requirements without modification.
• Bench tested on actual hardware: We cycled this pack through the DST-11's charge and discharge sequence on the bench. The BMS accepted charge normally, held voltage under sustained sensor load, and showed no cutoff during repeated tensile measurement cycles.
• Post-installation calibration step: After fitting this pack, run a full calibration cycle through the DST-11 instrument menu before your first measurement session. The gauge maps battery state during calibration — skipping this step causes premature low-battery warnings even when the pack is fully charged.

Why the DST-11 cuts out when switching between tensile and compressive measurement modes

The DST-11 briefly reinitialises the load cell amplifier when switching force direction modes. This creates a short current spike that an aged or partially discharged Ni-MH pack may not sustain — the BMS interprets the spike as an overload and cuts the output. A fresh pack at full charge handles this transition without voltage sag. If the fault returns on a new pack, check that the battery contacts on the gauge body are clean and making full contact — oxidised contacts add resistance and compound the voltage drop.

Pack will not charge after the gauge sat unused in a carry case for months

Ni-MH cells self-discharge during storage, and the DST-11's charger circuit will not initiate a charge cycle if the pack voltage has dropped too far below the recognition threshold. Place the gauge on charge and leave it undisturbed for at least 90 minutes before checking — some chargers run a low-current trickle first to recover the cells before switching to the main charge current. If the charge indicator still does not activate after that period, check pack voltage directly at the battery terminals. A reading below 3.6V across the four-cell pack indicates the cells need a manual recovery charge at 0.1C before the instrument charger will engage.