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Peli 9440 RALS Replacement Battery 9.6V 5000mAh

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From $75.99 USD $93.99
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Fits Peli 9440 RALS rechargeable flashlight; replaces OEM part 009446-3429-000.
9.6V 5000mAh Ni-MH pack delivers 48Wh to sustain high-intensity output across extended search and rescue operations.
Battery slides into the flashlight barrel with standard cylindrical cell stack orientation; no locking tab or connector.
We bench-tested this pack on full discharge cycles — the Ni-MH chemistry accepts charge from cold starts without BMS protection delay.
On first use with the 9440 RALS, run the flashlight in standard mode for two full cycles before switching to turbo; turbo mode draws peak current that can cause premature voltage sag if the cells haven't seated fully under load.
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

9.6V

Amp

5000mAh

Peli 9440 RALS — 9.6V Ni-MH Replacement Battery (009446-3429-000)

This is a 9.6V 5000mAh Ni-MH battery for the Peli 9440 RALS rechargeable area light system. It replaces part number 009446-3429-000 in the 9440 RALS unit. The 9440 RALS is a high-output portable searchlight used in emergency response, law enforcement, and field operations.

  • 9440 RALS platform fit: The 9440 RALS uses a dedicated multi-cell Ni-MH pack at 9.6V to match the onboard driver's voltage rail and charge termination logic. Swapping to a different voltage or chemistry trips the charge controller and prevents full charge cycles from completing correctly.
  • Bench tested on actual hardware: We ran this pack through full charge and discharge cycles on the 9440 RALS driver. The BMS delta-V termination detected peak charge correctly, and the pack held voltage within spec under the high-current draw of the main lamp driver across multiple cycles.
  • Multi-cell replacement protocol: The 9440 RALS pack contains multiple sub-cells in series. Never mix this new pack with any remaining original cells. Mismatched cells cause the weakest cell to invert polarity under high-current draw, permanently reducing capacity and damaging that cell.

Why the 9440 RALS steps down output before the battery indicator shows low

The 9440 RALS driver uses brownout protection that reduces lamp output before the battery reaches full depletion. Ni-MH cells drop voltage sharply at end of discharge, and the driver steps down to protect the pack from deep cell reversal damage. This is intentional — the driver is reading actual cell voltage, not the fuel gauge indicator. If the light dims noticeably during use, the pack is near the end of its usable charge even if the indicator hasn't triggered yet.

9440 RALS not reaching full brightness after charging

Ni-MH packs that have been stored discharged for extended periods develop voltage depression in one or more cells, preventing the pack from delivering the full 9.6V the driver expects at load. The charge controller may show a completed charge, but resting voltage under load sags below the driver's operating threshold. Run two full charge-discharge cycles back to back using the standard Peli charger to allow the cells to recover. If full output doesn't return after two cycles, measure pack voltage under load — anything below 8.4V under draw indicates a cell that won't recover.

Compatible Models

9440 RALS

Replaces Part Numbers

009446-3429-000

Technical Specifications

Voltage9.6V
Amp Hours5000mAh
Capacity5000mAh
Rate48Wh
Net Weight1024g /36.12 oz
Gross Weight1214g /42.82 oz
Approximate Weight1214g /42.82 oz
Dimension 120.20 x 65.40 x 65.40mm

Product Highlights

  • Brand: Peli
  • Manufacturer: CS
  • Series: Standard
  • Color: Green
  • Product Type: Ni-MH
  • Battery Type: Ni-MH
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My 9440 RALS was fully charged but the light dimmed heavily within the first few minutes of use — what's happening?

This is driver brownout protection cutting lamp output as cell voltage drops under high-current draw. Ni-MH packs that have been stored discharged lose capacity through cell voltage depression, so even a "full" charge doesn't restore the pack to rated voltage at load. Run two full charge-discharge cycles on the Peli charger to condition the cells. If dimming still starts early, check pack voltage under load — below 8.4V confirms a degraded cell.

The 9440 RALS turns on but flickers or cycles between modes near the end of a charge — is that a fault?

That's the driver cycling output as cell voltage drops in and out of the minimum threshold — it's brownout protection activating repeatedly rather than stepping down cleanly. It typically means one cell in the pack is weaker than the others and dragging pack voltage down unevenly under draw. Switch to a lower output mode immediately to keep voltage above the driver's cutoff point. Replace the pack as soon as possible; uneven cell drain under these conditions accelerates damage to the weaker cell.

The new battery charged fully, but runtime in the 9440 RALS is noticeably shorter than my old pack at its best — did I get a faulty unit?

New Ni-MH packs often don't reach rated capacity straight out of the box. The cells need two to three full charge-discharge cycles to reach their rated 5000mAh. Run the light until the driver steps down output, then charge fully — repeat this two more times. If capacity hasn't improved by the third cycle, measure resting voltage after a full charge; a healthy pack should read at least 10.2V with no load before use.

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