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Black rectangular lithium-ion battery pack with label showing 10.8V 36.2Wh

Beisite

Beisite RRC2040 31NR19/66 10.8V 36.2Wh laptop battery

SKU CH-AQSY-26A9P

10.8 V lithium-ion replacement battery rated at 36.2 Wh for RRC2040 ultrasonic flaw detector controllers

  • Battery typeLithium-Ion
  • Battery voltage rating10.8 V
  • Battery capacity36.2 Wh/3350 mAh
  • Product colorBlack
  • Product typeBattery
  • Compatible withRRC2040 ultrasonic flaw detector Industrial Controller Batte
  • Ready for RRC2040 ultrasonic flaw detector
  • 8V lithium-ion chemistry delivers 36.2Wh capacity
  • Replaces RRC2040 NC2040 NC2040HD31 FLUKE BP290 31NR19/66
  • New battery with 3350mAh rated charge
  • Black finish matches industrial controller housing

Replacement Battery for Ultrasonic Flaw Detectors

This lithium-ion pack is built for the RRC2040 ultrasonic flaw detector industrial controller. It delivers 10.8V and 36.2Wh capacity in a black housing. Technicians servicing field inspection equipment will find it matches the original form factor. The unit ships new and ready for immediate deployment.

Voltage and Capacity Match the Original

The critical figure is the 10.8V output combined with a 36.2Wh energy rating, equivalent to 3350mAh. If your device requires a different voltage or a significantly higher capacity, this battery will not power it correctly. Always verify the controller's nameplate before ordering to avoid a mismatch.

Direct Swap With No Soldering Required

Installation consists of opening the controller's battery compartment and sliding the pack into place. The connector aligns with the original socket, so no tools or wiring changes are needed. A common error is forcing the connector when the orientation is reversed; check the keying groove before applying pressure.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $161.99
Pricier than about 90% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameRRC2040
Model nameRRC2040
Part number31NR19/66
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating10.8 V
Battery capacity36.2 Wh/3350 mAh
Compatibility
Compatible withRRC2040 ultrasonic flaw detector Industrial Controller Battery

Questions about this item

What does the 36.2 Wh rating mean for run time on the RRC2040 flaw detector?

The 36.2 Wh capacity typically delivers several hours of continuous operation on the RRC2040 ultrasonic flaw detector, depending on screen brightness and probe activity.

Does the 10.8 V lithium-ion pack use a proprietary connector or a standard interface?

The pack uses the original equipment connector designed for the RRC2040 industrial controller; it is not a generic barrel or USB interface.

Will this 31NR19/66 battery fit the existing battery bay without modification?

Yes, it matches the OEM dimensions and mounting points for the RRC2040 ultrasonic flaw detector, so it slides into the standard bay.

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