Fluke 2950-2002-01 Replacement Battery 9.6V 2000mAh

Fluke 6682252 / 8262 41 Series — 9.6V Ni-MH Replacement Battery (2950-2002-01)

This is a 9.6V 2000mAh Ni-MH replacement battery for Fluke survey and test instruments. It fits the 6682252, 8092 01, 8262 41, and OPV52-BP platforms. The OEM part numbers covered include 2950-2002-01, 2950-2003-01, 2950-2003-02, 2950-2013-01, 2950-2013-02, BP8262-41, and OMNI2-BP-8262-41.

• Cross-platform fit — 6682252, 8262 41, OPV52-BP: These instruments share the same 9.6V Ni-MH voltage rail, physical footprint, and connector pinout. The BMS on each platform reads cell voltage during startup; packs outside the accepted voltage window are rejected before the instrument reaches its main menu.
• Bench tested on actual hardware: We ran this pack through charge and discharge cycles on Fluke survey instrument hardware. The BMS accepted the pack without fault codes, and the cells held voltage through sustained sensor load without dropout at the terminal.
• Post-install calibration cycle: After fitting this battery, run a full calibration cycle through the instrument menu before field deployment. The instrument maps battery state during calibration — skipping this step causes premature low-battery warnings during your first measurement session in the field.

BMS lockout after the instrument sat unused in a carry case for months

Ni-MH cells self-discharge at roughly 1–3% per day at room temperature. After extended storage, the pack voltage can drop below the BMS recovery threshold — typically around 8.4V on a 9.6V eight-cell pack. When this happens, the instrument either shows no response or rejects the battery outright at startup. To recover, place the pack on a Ni-MH compatible charger that supports a conditioning or trickle pre-charge mode; this brings cell voltage back into the window where the BMS will re-initialise.

Instrument shuts down mid-measurement when the probe module initialises

Probe or sensor modules draw a short current spike at power-up — this is normal, but a degraded or partially discharged pack can sag below the BMS cutoff threshold during that spike. The instrument interprets the voltage drop as a critical low-battery event and shuts down to protect the measurement circuit. If this happens on a pack that reads as charged, verify the resting voltage at the battery terminals before reinstalling — a healthy 9.6V Ni-MH pack should read at least 9.0V at rest after a full charge cycle.