Pelican 9410L Replacement Battery 7.4V 7500mAh Li-ion

Pelican 9410L LED Lantern — 7.4V Li-ion Replacement Battery (9413-301-001)

This is a 7.4V, 7500mAh Li-ion replacement battery for the Pelican 9410L and 9410L LED Lantern. It replaces OEM part numbers 9413-301-001, 9413-301-002, 9410-301-001E, and K048. If your 9410L is no longer holding charge or powering on at full output, this is the direct swap.

• 9410L and 9410L LED Lantern compatibility: Both variants use the same battery bay, voltage rail, and BMS communication protocol. The connector and physical footprint are identical across the production run, so this battery seats and handshakes correctly in either version.
• Bench tested on actual hardware: We ran this battery in a 9410L under full turbo output. The BMS held the discharge curve without early cutoff, and the protection circuit tripped correctly at the rated low-voltage threshold before cell damage could occur.
• Multi-cell replacement timing: The 9410L battery pack contains two cells wired in series. If one original cell is significantly degraded, do not pair a new pack with an old one. Replace the entire battery as a single unit — mismatched cell states cause the weaker cell to over-discharge under high-current draw, accelerating failure in both.

Why the 9410L steps down output before the battery indicator reads low

The 9410L uses a constant-current LED driver that monitors the voltage rail continuously. When cell voltage starts to sag under high-current draw — even briefly — the driver steps output down to protect both the LEDs and the cells. This can happen while the indicator still shows partial charge because the indicator reads resting voltage, not load voltage. The two readings diverge most in turbo mode, where current draw is highest. Switching to a lower output mode lets the pack recover its resting voltage and extends usable output.

Flashlight not turning on after battery has been stored unused for months

Li-ion cells self-discharge at roughly 1–2% per month under normal storage conditions. If the 9410L sat unused long enough, the cells may have dropped below the BMS's minimum re-initialisation threshold — typically around 2.5V per cell, or 5.0V for a 2S pack. A BMS in this state blocks charge input as a protection measure. Place the battery on the charger for at least 30–60 minutes with no load connected; most BMS circuits will re-initialise once input voltage is detected above the floor. If the charger shows no activity after that window, check that pack voltage at the terminals reads above 4.0V total before assuming cell failure.