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Kastar PS-42B lithium-ion battery and foldable-plug AC charger

Kastar

Kastar PS-42B 1400mAh Li-Ion Battery & AC Charger

SKU CH-C89W-R85P2

1400 mAh lithium-ion battery with foldable AC wall charger for Panasonic DECT handsets

  • TypeBattery & Charger
  • Pack1 Charger + 1 Battery
  • ChemicalLi-Ion
  • Capacity5.18 Wh
  • Dimensions3*2*2 Inch
  • FeaturesFoldable Flat Plug
  • 1400 mAh lithium-ion cell powers compatible Panasonic handsets
  • 18 Wh capacity delivers reliable talk and standby time
  • Foldable flat-plug AC charger stores neatly in bags or drawers
  • 100–240 V input lets you charge worldwide without a voltage converter
  • LED shows red while charging and green when full or on standby

Replacement Battery for Panasonic Handsets

The Kastar PS-42B is a lithium-ion power pack rated at 1400mAh and 3.7V, delivering 5.18Wh of energy. It directly replaces Panasonic part numbers ending in 18, 19, 46 and 47. The bundle suits users of compatible DECT handsets who need a fresh cell and a matching wall charger in one purchase.

AC Wall Charger with Foldable Plug

The included charger accepts 100 to 240V AC input at 50 to 60Hz and outputs 4.2V DC at 600mA. Its foldable flat pins reduce bulk when the unit is stored or packed. A red LED signals active charging while a green LED shows standby or full charge status, giving clear visual feedback without extra software.

Steady Charging for Daily Duty Cycles

The 600mA output replenishes the 1400mAh cell at a moderate rate that suits overnight or shift-change top-ups. Lithium-ion chemistry avoids memory effect, so partial recharges do not reduce usable capacity over time. The combination is built for handsets that sit in a cradle between calls rather than for rapid field swaps.

Highlights

  • 1400 mAh lithium-ion cell powers compatible Panasonic handsets
  • 18 Wh capacity delivers reliable talk and standby time
  • Foldable flat-plug AC charger stores neatly in bags or drawers
  • 100–240 V input lets you charge worldwide without a voltage converter
  • LED shows red while charging and green when full or on standby

Specifications

BrandKastar
ModelPS-42B
Part NumberNOCAR-1B-PS42B-A
TypeBattery & Charger
Pack1 Charger + 1 Battery
ChemicalLi-Ion
Capacity5.18 Wh
Dimensions3*2*2 Inch
FeaturesFoldable Flat Plug

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Questions about this item

How long will the 1400mAh battery last under continuous talk time?

The 1400mAh lithium-ion cell stores 5.18 Wh at 3.7 V; actual run-time depends on the handset power draw and signal conditions.

Does the charger get hot or make noise when left plugged in all day?

The wall charger draws AC 100-240 V at 50-60 Hz and outputs DC 4.2 V at 600 mA with a foldable flat plug; it runs silently and stays cool during normal use.

Which Panasonic handset models work with this PS-42B battery pack?

Compatible models include KX-TCA285, KX-TCA385, KX-UDT121, KX-UDT131, Attune II HD3, WX-CH455, WX-SB100, WX-ST100 and WX-ST300.

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