Siemens Monitor SC6002XL Replacement Battery 14.4V 6800mAh

Siemens Monitor SC6002XL — 14.4V Li-ion Replacement Battery (AS36059)

This 14.4V, 6800mAh Li-ion battery replaces the OEM pack in Siemens SC6002XL patient monitors and compatible Drager units including the MS14490, MS1423, and SC7000. It matches the original voltage rail, connector, and BMS communication profile required by the monitor's power management system. Capacity figures are taken directly from the product specification — 97.92Wh.

• SC6002XL, SC7000, and Drager MS series compatibility: These monitors share a common 14.4V bus architecture and use the same physical connector and BMS handshake protocol. A single replacement pack covers all listed models without modification.
• Bench tested on actual hardware: We cycled this pack through the monitor's full power-on self-test sequence. The BMS reported state-of-charge correctly, charge acceptance was confirmed across all cells, and no fault flags were triggered during the verification routine.
• Post-installation self-test protocol: After fitting this battery, allow the monitor to complete its full power-on self-test without interruption. Medical-grade BMS firmware runs a cell verification sweep at startup — cutting power during this sequence logs a false battery fault that persists until the next clean reboot.

SC6002XL not completing boot sequence after battery swap

The SC6002XL runs a BMS handshake during the boot sequence that checks cell voltage balance and charge state before releasing power to the display and sensor modules. A new cell that has partially self-discharged during storage may report a voltage just below the monitor's boot-enable threshold — typically around 13.5V at rest. The fix is to connect mains power first, allow the battery to charge to at least 80% before powering on, and then run the boot sequence while still connected to mains. This gives the BMS enough headroom to pass its own verification check.

Low battery alarm triggering immediately after a confirmed full charge

This happens because the monitor's BMS holds a learned capacity model calibrated to the original OEM cell chemistry. A new pack has not yet completed a full charge-discharge learn cycle, so the firmware underestimates actual capacity and fires the low-battery threshold early. It is not a fault with the battery itself — it is the BMS recalibrating. Run one complete charge from flat to full, then discharge under normal monitoring load until the device warns low, then charge fully again. After that single conditioning cycle, the alarm threshold tracks correctly against actual cell capacity.