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Two rectangular Kastar LI-42B lithium-ion camera batteries side by side

Kastar

Kastar LI-42B 2-Pack 1400mAh 3.7V Li-Ion camera battery

SKU CH-RFKW-0HXK4

Two 1400 mAh 3.7 V lithium-ion packs replace Panasonic Attune and WX series headset batteries with UL1642 and CE protection circuits

  • Total capacity5.18 Wh
  • Pack contents2 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery
  • Product dimensions3 × 2 × 2 in
  • Key featuresHigh Capacity and Manufacture Price.
  • Two-pack gives a ready spare for continuous use
  • 1400 mAh capacity extends operating time between charges
  • 7 V lithium-ion chemistry matches original power requirements
  • Built-in protection circuit guards against over-charge and over-heat
  • Tested to UL1642 and CE safety standards for reliable replacement

Kastar LI-42B Twin Pack for Drive-Thru Headsets

This two-pack of Kastar LI-42B lithium-ion batteries replaces the original power cells in Panasonic Attune and WX-series drive-thru communication headsets. Each cell delivers 1400 mAh at 3.7 V for extended talk time.

Built-In Protection and Safety Certifications

The pack includes over-charge, over-discharge, over-voltage, over-current and over-heating safeguards. Cells meet UL 1642 and CE standards so the replacement remains safe during continuous shift use.

Check Connector and Voltage Before Ordering

Verify that the headset uses a 3.7 V LI-42B form factor with the same connector layout. Units requiring a different voltage or pin arrangement will not work with this pack.

How it compares

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

Price $10.99
Cheaper than about 80% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameLI-42B
Part numberBA-2B-PS42B-P
Total capacity5.18 Wh
Product typeBattery
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 2 in
In the box
Pack contents2 Batteries

Other versions of this model

5 more in the same range

Questions about this item

Should I buy the 2-pack or a single LI-42B battery?

The LI-42B is sold as a 2-pack containing two 1400mAh lithium-ion cells, giving you a spare ready for swap-outs during long shifts.

How long will a 1400mAh 3.7V battery run a Panasonic Attune headset?

At 5.18 Wh, each cell delivers roughly the same talk time as the original Panasonic pack for Attune, Attune 3020, 3050, I, II and II HD3 models.

Does the LI-42B use a proprietary connector or a standard interface?

The battery drops straight into the WX-CH455, WX-SB100 and WX-ST100 headsets without adapters, matching the OEM form factor and voltage.

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