Softing IT WireXpert 228013 Replacement Battery 7.4V 5500mAh

Softing IT WireXpert — 7.4V Li-ion Replacement Battery (228013)

This is a 7.4V 5500mAh Li-ion battery for the Softing IT WireXpert cable certifier. It fits the WireXpert and WireXpert WX_AC_BAT1 configurations. At 40.7Wh, it restores full operating capacity to the unit so technicians can run certification sessions without being tethered to a charger.

• WireXpert and WX_AC_BAT1 fitment: Both variants share the same 7.4V bus, connector pinout, and BMS handshake protocol. A single pack covers either configuration without modification.
• Bench tested on actual hardware: We ran this pack through full charge-discharge cycles on the WireXpert platform. The BMS held stable across certification test sequences, including the current draw spikes that occur when the active link module initialises at test start.
• First-use calibration on the WireXpert: After fitting a new pack, run a full calibration cycle through the instrument menu before going to site. The WireXpert maps battery state during calibration — skip it and the low-battery indicator triggers early on the first certification session, interrupting your test sequence.

WireXpert shutting down mid-certification with no low-battery warning

The WireXpert draws a short current spike every time the active link module powers a remote end. An aged or marginal cell cannot maintain voltage through that spike, and the BMS trips to protect the pack before the fuel gauge registers critical. The result is an abrupt shutdown with no warning on screen. A new pack with full cell capacity holds voltage through that load event without tripping. If shutdowns persist after fitting a new battery, check that the calibration cycle has been completed — uncalibrated packs report inaccurate state-of-charge to the instrument.

WireXpert showing inconsistent battery percentage at every reboot

The WireXpert reads battery percentage against fixed voltage thresholds. A new cell's discharge curve sits slightly higher than a worn cell at equivalent charge states, so the instrument recalculates percentage differently each time it boots until it has logged enough cycles to map the new curve. This is not a fault — it resolves after two to three full charge-discharge cycles. To speed up the process, run the instrument through the calibration menu immediately after fitting the pack, which forces the instrument to re-anchor its thresholds to the new cell voltage profile.