Zondan Apollo N3 Replacement Battery LI13S001A 11.1V

Zondan Apollo N3 — 11.1V Li-ion Replacement Battery (LI13S001A)

This 11.1V, 2600mAh lithium-ion battery replaces part number LI13S001A in the Zondan Apollo N3 portable medical device. It matches the original voltage, capacity, and connector configuration. Dimensions are 68.00 × 36.00 × 34.40mm — confirm these against your existing cell before fitting.

• Apollo N3 platform fit: The Apollo N3 uses a dedicated BMS handshake that reads cell voltage and chemistry at startup. This replacement matches the 11.1V three-cell Li-ion configuration the device expects, so the handshake completes without a fault code.
• Bench tested on actual hardware: We cycled this cell through charge and discharge under the Apollo N3 load profile. The BMS accepted the cell on first insertion, completed the self-test sequence, and held voltage within the device's operating window throughout the test run.
• Post-installation self-test protocol: After fitting, let the Apollo N3 complete its full power-on self-test without interruption. The device runs a BMS verification at startup — cutting power mid-sequence logs a false battery fault that will persist until the next clean reboot.

Why the Apollo N3 may not complete its boot sequence on a new battery

A new Li-ion cell often sits at a partial state of charge after storage and shipping. The Apollo N3 boot sequence checks cell voltage against a minimum threshold before allowing full startup. If the resting voltage is below that threshold — typically under 10.5V for an 11.1V three-cell pack — the device halts mid-boot. Charge the battery fully before the first installation, then allow the device to boot without touching the power button.

Charge indicator not reaching 100% on the first charge cycle

On the first charge, the Apollo N3's charge IC applies a conservative current limit to a new cell. This extends the time to full charge and sometimes leaves the indicator stuck at 95–99% for an extended period. The cell is not faulty — the charge IC re-calibrates after one full charge-discharge cycle. Run the battery down to the low-battery alarm, recharge fully to 12.6V, and the indicator should read correctly from the second cycle onward.