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Three rectangular batteries and a compact wall charger with foldable flat plug

Kastar

Kastar 3-Pack PS-42B Battery & AC Wall Charger for Panasonic Attune Headsets

SKU CH-YPXV-KPD35

Three 3.7 V 1400 mAh lithium-ion batteries and a 100-240 V AC wall charger with foldable plug for Panasonic Attune drive-thru headsets

  • Total capacity5.18 Wh
  • Pack contents1 Charger + 3 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery & Charger
  • Product dimensions3 × 2 × 3 in
  • Key featuresFoldable Flat Plug
  • Three lithium-ion batteries deliver 1400mAh each for extended headset talk time
  • AC wall charger accepts 100-240V input for worldwide outlet compatibility
  • Foldable flat plug design keeps the charger compact during storage and travel
  • LED indicator shows red while charging and green when batteries reach full charge
  • Compatible with Panasonic Attune 3020, 3050, I, II, II HD3, WX-CH455, WX-SB100 and WX-ST100 headsets

Kastar PS-42B Battery Pack & Wall Charger

This three-pack supplies replacement lithium-ion cells and a compact AC charger for Panasonic Attune drive-thru headsets. It targets restaurant and service-window operators who need continuous talk time across shift changes. Each cell delivers 3.7 V and 1400 mAh, matching the original WX-SB100 form factor. The foldable flat plug keeps the charger tidy in a drawer or on a counter.

5.18 Wh Capacity With 600 mA Charge Rate

A single battery stores 5.18 Wh, enough for extended headset use during peak hours. The wall charger outputs 4.2 V at 600 mA, so a depleted pack reaches full charge in a few hours. Red LED shows active charging; green signals standby or completion. Three cells in rotation let one charge while two stay in service, eliminating downtime. Heavy all-day volume may still demand a fourth spare.

AC 100-240 V Input Fits Global Power

The charger accepts 100 to 240 V at 50 or 60 Hz, so it works in any standard outlet without a separate adapter. Its foldable pins reduce bulk when stored in a kit bag or mounted near the base station. No proprietary dock or data cable is required — just plug the headset battery directly into the charger. Buyers needing multi-bay gang charging or vehicle power will need a different solution.

How it compares

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

Price $20.99
Pricier than about 62% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model namePS-42B
Part numberNOCAR-3B-PS42B-P
Total capacity5.18 Wh
Product typeBattery & Charger
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 3 in
In the box
Pack contents1 Charger + 3 Batteries

Other versions of this model

5 more in the same range

Questions about this item

Will the 3.7 V 1400 mAh PS-42B batteries run in my Panasonic Attune 3020 headset?

Yes, the PS-42B cells are built as direct replacements for the Attune 3020, 3050, I, II, II HD3, WX-CH455, WX-SB100 and WX-ST100 headsets.

How do I know the charger is actually charging each battery?

The wall charger shows a red LED while charging and turns green when the battery reaches full charge or stands by.

Does the 3-pack include the AC wall charger or only the three batteries?

The pack contains one AC wall charger with foldable flat plug plus three PS-42B lithium-ion batteries.

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