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Zebra EC50 Barcode Scanner Compatible Battery BT-000424-00 3.85V

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From $55.99 USD $68.99
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Fits Zebra EC50, EC55, EC55AK-21B243-NA handheld barcode scanners; replaces OEM part BT-000424-00.
3.85V, 3000mAh lithium-polymer cell delivers full power to laser and wireless radio during scan operations.
Connector seats into battery slot with positive contact alignment; locking tab secures pack flush against device housing.
We bench-tested this cell in an EC50 cradle through five full charge cycles; BMS accepted handshake without fault codes.
After installing, place the scanner in its cradle for one full charge cycle before first shift; the scan trigger draws peak current at low state of charge and a pre-charged cell prevents false BMS cutoff during rapid barcode bursts.
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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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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

3.85V

Amp

3000mAh

Zebra EC50 / EC55 Series — 3.85V Li-Polymer Replacement Battery (BT-000424-00)

This 3.85V, 3000mAh lithium-polymer pack replaces OEM part BT-000424-00 in the Zebra EC50 and EC55 series mobile computers. These handheld terminals are used in retail, logistics, and warehouse pick-and-pack operations. Capacity is 3000mAh (11.55Wh), matching the original cell specification.

  • EC50 and EC55 platform fit: Both models share the same battery bay geometry, connector pinout, and BMS handshake protocol — one pack covers the full EC50/EC55 range, including the EC55AK-21B243-NA variant.
  • Bench tested on actual hardware: We cycled this pack through simulated scan-burst loads on the EC55 platform. The BMS responded correctly to trigger-inrush events and held the voltage rail steady through repeated wireless polling cycles without tripping into protective cutoff.
  • First-shift installation tip: After installing this pack, seat the scanner in its cradle and run a full charge cycle before the first pick-and-pack shift. Scan-trigger inrush current is highest when the cell is near minimum charge — a pre-charged cell prevents false BMS trips during the opening minutes of a shift.

Cradle showing a charging error on a new pack

Zebra EC50/EC55 cradles authenticate the battery through the dock contacts before initiating a charge cycle. If contact resistance is too high — from handling residue or a light misalignment on seating — the cradle logs a charging error and refuses to charge. Wipe the gold contacts on the pack and the cradle dock with a dry lint-free cloth, then reseat the scanner firmly until it clicks. The cradle should clear the error and begin charging within 30 seconds of a clean reseat.

Scanner losing wireless connection during rapid scan bursts

On the EC55 platform, the imager trigger and the Wi-Fi radio draw current simultaneously during a rapid scan burst — the combined inrush can pull the cell voltage below the BMS lower threshold momentarily. When this happens, the radio drops its connection to the access point while the imager continues to fire. This is not a radio fault — it is a voltage sag event. Confirm the pack is above 3.7V before a heavy scanning session; if sag persists at a full charge, the cell has degraded and a replacement is required.

Compatible Models

EC50 EC55 EC55AK-21B243-NA EC55AK-21B243-NA EC55 EC55AK-21B242-NA EC55AK-21B242-NA EC55 EC55AK-11B132-NA EC55AK-11B132-NA EC55

Replaces Part Numbers

BT-000424-00

Technical Specifications

Voltage3.85V
Amp Hours3000mAh
Capacity3000mAh
Rate11.55Wh
Net Weight46g /1.62 oz
Gross Weight71g /2.50 oz
Approximate Weight71g /2.50 oz
Dimension 69.35 x 63.00 x 4.80mm

Product Highlights

  • Brand: Zebra
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-Polymer
  • Battery Type: Li-Polymer
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My EC55 won't read barcodes at all after I swapped the battery — imager light comes on but no decode. What's wrong?

The imager on the EC55 needs a minimum voltage to fire at full illumination power — if the replacement pack shipped at a low state of charge, the imager may light up but lack the voltage headroom to decode reliably. Seat the scanner in its cradle and run a full charge cycle before attempting any scanning. Once the pack is fully charged, the imager will have the rail voltage it needs and decodes should return to normal. Check that the cradle contact shows a solid charging indicator before pulling the device for use.

My EC50 runs noticeably fewer shifts per charge than the old battery did — scan frequency hasn't changed. Why?

Shallow cycling — charging before the pack drops much below 50% — accelerates capacity fade in lithium-polymer cells over time. If the previous battery was conditioned this way for months, the baseline had already dropped before it was replaced, and the comparison feels off. A new pack will perform to its rated 3000mAh only after two or three full discharge-charge cycles in normal use. Track shift endurance after the first week of use rather than the first day to get an accurate baseline.

The scanner gets noticeably warm on the back casing after a long picking shift — is that a battery issue?

The EC50 and EC55 house the battery directly behind the scan engine and wireless radio in a compact enclosure with limited airflow. During sustained scanning combined with constant Wi-Fi polling, heat from both the radio and the cell accumulates in that enclosed space. This is normal behaviour under high-duty-cycle conditions — but if the casing becomes too hot to hold comfortably, the BMS is likely throttling output to protect the cell. Reduce scan burst frequency or allow a 10-minute rest period mid-shift; if overheating persists at moderate workloads, measure the pack voltage under load — a reading below 3.6V under light draw indicates cell degradation.

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