Zondan Apollo N3 Replacement Battery 11.1V 3400mAh

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

This 11.1V, 3400mAh Li-ion battery replaces the OEM part LI13S001A in the Zondan Apollo N3 medical device. The Apollo N3 is a portable medical-grade unit used in clinical and home healthcare settings. Voltage and cell chemistry match the original specification exactly.

• Apollo N3 platform fit: The Apollo N3 runs a 3-cell series Li-ion configuration at 11.1V nominal. This replacement matches that cell arrangement and the BMS handshake protocol the device expects at power-on. A mismatch in either causes the device to reject the pack at the self-test stage.
• Bench tested on actual hardware: We ran this pack through the Apollo N3 power-on self-test sequence and monitored BMS communication throughout. The charge controller accepted the cell and completed initialisation without faulting. Discharge profiles under load matched expected output across the first three cycles.
• Post-installation self-test handling: After fitting this battery, allow the Apollo N3 to complete its full power-on self-test without interruption. The device runs BMS verification at startup, and cutting power mid-sequence triggers a false battery fault that persists until a full reboot clears the flag.

Device not completing boot sequence on new battery

The Apollo N3 boot sequence includes a BMS handshake that verifies cell chemistry and state-of-charge before allowing full operation. A new cell that has been in storage may present a resting voltage below the threshold the device expects at first boot, causing the sequence to stall or abort. This is not a faulty battery — it is the device's safety check responding to a partially discharged pack. Charge the battery fully to 12.6V before the first installation attempt.

Charge indicator not reaching 100% on the first charge cycle

The Apollo N3's charge IC applies a conservative current limit when it first encounters a new cell pack, which means the initial charge cycle may terminate early and show 95–98% on the indicator. This is the charge controller calibrating to the new cell's internal resistance profile — it is not a sign of reduced capacity. Run one full charge-discharge cycle and the charge IC recalibrates. The indicator will reach 100% from the second cycle onward.