medicalEconet Compact 5 Replacement Battery 10.8V 3400mAh

medicalEconet Compact 5 — 10.8V Li-ion Replacement Battery (10-5705)

This is a 10.8V, 3400mAh lithium-ion battery for the medicalEconet Compact 5 portable medical device. It also fits the Compact 7 (alternate configuration) and Compact XL. OEM part numbers covered include 10-5705, BN130510-BNT, BN221024, 031PpTC, and BN220818.

• Compact 5, Compact 7 (alt), and Compact XL compatibility: These models share the same 10.8V battery rail, connector pinout, and BMS handshake protocol. One cell fits all three variants without modification or adapter.
• Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on the Compact 5 platform. The BMS completed authentication, voltage reporting matched the OEM cell within tolerance, and the charge IC accepted the cell without triggering a fault state.
• Power-on self-test — do not interrupt: After installing this battery, let the Compact 5 complete its full boot and self-test sequence uninterrupted. The device runs BMS verification at startup. Cutting power mid-sequence logs a false battery fault that persists until the next complete reboot.

Device not completing boot sequence on new battery

The Compact 5 runs a BMS learn cycle during its first few boot sequences after a cell swap. On a brand-new cell, the device's charge IC applies a conservative voltage threshold before confirming the battery as valid. If the cell voltage is below approximately 10.0V on first install — common after extended warehouse storage — the device may stall at the boot screen or loop before completing startup. Charge the battery to full before the first installation, then allow one complete charge-discharge cycle before clinical use.

Self-test failure after battery swap

A self-test failure immediately after swapping to a new cell is not a defective battery — it is the BMS learn cycle reporting incomplete data. The Compact 5 validates cell chemistry against stored OEM parameters, and a fresh cell with no discharge history does not yet match those parameters. Run one full charge cycle, then one full supervised discharge cycle before using the device clinically. After that cycle, the self-test clears and voltage reporting stabilises at the correct 10.8V baseline.