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Trixell 3543 pR Replacement Battery 11.1V 2500mAh Li-ion

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Fits Trixell 3543 pR wireless portable detector; replaces OEM part numbers 4512-201-06902, 62841555A, and ZC08040.
11.1V, 2500mAh lithium-ion cell delivers 27.75Wh to power uninterrupted imaging cycles during clinical examinations.
Connector orientation and locking tab match OEM housing; physical dimensions 165.60 x 85.55 x 17.20mm confirm direct slot fit.
We bench-tested this cell in the 3543 pR platform; BMS handshake completed on first charge cycle without fault codes.
Allow the detector to complete its full power-on self-test cycle without interruption after installation—medical devices verify new battery chemistry during startup, and premature shutdown causes false fault flags until next full reboot.
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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.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

Disclaimer

⚠️ 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

11.1V

Amp

2500mAh

TRIXELL 3543 pR Wireless Portable Detector — 11.1V Li-ion Replacement Battery (4512-201-06902)

This 11.1V 2500mAh Li-ion battery replaces OEM part 4512-201-06902 in the TRIXELL 3543 pR and 3543 pR Wireless Portable Detector. It is a direct fit for the flat-panel digital radiography detector used in clinical and hospital imaging environments. Cross-references 62841555A and ZC08040.

  • 3543 pR platform compatibility: Both the standard and wireless variants of the 3543 pR share the same 11.1V three-cell Li-ion architecture and connector pinout. The BMS in each expects identical voltage thresholds and communication handshake, so one battery fits both configurations without modification.
  • Bench tested on actual hardware: We ran the battery through full charge and discharge cycles on a 3543 pR unit. The BMS accepted the cell stack, completed voltage verification, and passed the internal resistance check without fault flags. Charge termination cut in cleanly at 12.6V.
  • Post-installation self-test protocol: After installing this battery, allow the detector to complete its full power-on self-test sequence without interruption. The 3543 pR runs a BMS verification routine at startup — cutting power during this step causes a latching battery fault that persists until the next clean reboot cycle.

Why the 3543 pR shows a battery fault immediately after a confirmed full charge

The 3543 pR BMS stores a chemistry profile calibrated to the OEM cell's internal resistance curve. A new replacement cell presents a slightly different resistance signature on the first few cycles, which the BMS interprets as a threshold mismatch. This triggers a low-battery or fault warning even when the cell is fully charged. One complete charge-discharge cycle allows the BMS to update its reference values and clear the fault. Do not use the detector clinically until this conditioning cycle is complete.

Detector will not power on after the battery was left unused in storage

Li-ion cells self-discharge over time. If the battery voltage drops below approximately 9V, the 3543 pR BMS enters deep-discharge lockout and refuses to boot the device — this is a protective state, not a cell failure. Place the battery on a compatible charger and allow it to recover to above 10.5V before reinserting it. Once voltage is restored above the BMS recovery threshold, the detector will complete its normal startup sequence.

Compatible Models

3543 pR 3543 pR Wireless Portable Detector

Replaces Part Numbers

4512-201-06902 62841555A ZC08040

Technical Specifications

Voltage11.1V
Amp Hours2500mAh
Capacity2500mAh
Rate27.75Wh
Net Weight205g /7.23 oz
Gross Weight345g /12.17 oz
Approximate Weight345g /12.17 oz
Dimension 165.60 x 85.55 x 17.20mm

Product Highlights

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

Frequently Asked Questions

The 3543 pR keeps alarming low battery even though the replacement just came off the charger at full charge — what's going on?

The 3543 pR BMS compares the new cell's internal resistance against a stored OEM reference profile, and a fresh cell won't match that profile on the first cycle. The detector reads the mismatch as a low-capacity condition and triggers the alarm even with a full charge. Run one complete charge-discharge cycle before clinical use — after that cycle, the BMS updates its reference and the alarm clears. Do not deploy the detector in a clinical setting until the conditioning cycle is finished.

The detector powers on but shuts off unexpectedly during an imaging session — is this the battery?

During the first 10 cycles, a new Li-ion cell has slightly higher internal resistance, which causes a sharper voltage sag under the load spike of an active imaging sequence. The 3543 pR BMS interprets that sag as a near-empty cell and triggers a protective shutdown. This behaviour settles after the cell is broken in through several full cycles. Track whether shutdowns reduce in frequency with each subsequent session — if they persist past cycle 10, check that resting voltage after a full charge reaches 12.6V.

The charge indicator on the 3543 pR won't reach 100% on the first charge with the new battery — is it defective?

The charge IC applies a conservative current limit on the first charge of a new cell, which can leave the indicator sitting at 95–99% for an extended period before terminating. This is normal behaviour — the cell is still receiving a trickle top-up charge. Leave it on the charger until the charge IC terminates naturally rather than removing it early. A second full charge cycle will typically show the indicator reaching 100% without delay.

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