Pelican 9440 Replacement Battery 9.6V 5000mAh Ni-MH

Pelican 9440 Remote Area Lighting System — 9.6V Ni-MH Replacement Battery (009446-3429-000)

This is a 9.6V, 5000mAh Ni-MH replacement battery for the Pelican 9440 Remote Area Lighting System. It slots directly into the 9440 housing using the OEM part number 009446-3429-000. Capacity is 48Wh, matching the original specification.

• 9440 Remote Area Lighting System compatibility: The 9440 uses a dedicated multi-cell Ni-MH pack at 9.6V — that voltage rail and the physical form factor are specific to this unit. The BMS inside the light expects that cell count and chemistry to regulate charging cycles correctly.
• Bench tested on actual hardware: We ran this pack through charge and discharge cycles on the 9440 platform. The BMS accepted the cell handshake without fault, and the charge termination triggered cleanly at capacity without overrun.
• Multi-cell replacement timing: The 9440 pack contains multiple Ni-MH cells wired in series. Replace the full pack as a unit — never mix this new pack with any remaining old cells from a previous installation. A weaker cell in series draws reverse current under high-output draw, which degrades it rapidly and can cause the housing to run warm.

Why the 9440 steps down output before the battery indicator reads low

The 9440's driver circuit monitors input voltage continuously. As the Ni-MH pack discharges, cell voltage drops gradually — there is no sharp cliff. The driver hits its brownout threshold and steps the output down to protect the circuit before the indicator LED registers a low-battery state. This is normal behaviour, not a fault. If the light dims noticeably under full output while the indicator still shows charge, the pack is near end-of-discharge and needs to be swapped or charged.

Driver mode-cycling or flickering at the end of a charge cycle

When the pack voltage drops below the driver's minimum operating threshold, some 9440 units cycle rapidly between output modes rather than stepping down cleanly. The driver is attempting to regulate current but cannot sustain the selected mode at that voltage. Switch to the lowest output mode immediately — this reduces current draw enough to stabilise the driver and extend usable light. The pack needs recharging once you see this behaviour; a healthy, fully charged pack should read above 9.0V at the terminals before load.