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Rectangular lithium-ion camera battery, grey plastic casing, branded Kastar LI-42B

Kastar

Kastar LI-42B 1400mAh 3.7V Li-Ion Camera Battery 1-Pack

SKU CH-W5HE-6BY57

Replacement 3.7 V 1400 mAh lithium-ion pack for Panasonic DECT handsets with built-in protection circuits

  • Total capacity5.18 Wh
  • Pack contents1 Battery
  • Battery chemistryLi-Ion
  • Product typeBattery
  • Product dimensions3 × 2 × 1 in
  • Key featuresHigh Capacity and Manufacture Price.
  • Longer shooting sessions with 1400mAh lithium-ion capacity
  • Reliable power at 3.7V for compatible Panasonic handsets
  • Built-in protection against over-charge, over-discharge and over-heating
  • Meets UL1642 and CE safety standards for peace of mind
  • Replaces multiple Panasonic part numbers including N4FUYYYY0018 and N4FUYYYY0046

Kastar LI-42B Li-Ion Camera Battery

The Kastar LI-42B is a 3.7V lithium-ion camera battery rated at 1400mAh and 5.18Wh. It serves as a direct replacement for Panasonic N4FUYYYY0018, N4FUYYYY0019, N4FUYYYY0046 and N4FUYYYY0047 cells. Built-in protection circuits guard against over-charge, over-discharge, over-voltage, over-current and over-heating.

For DECT handset owners needing a spare cell

This single-pack suits owners of Panasonic KX-TCA285, KX-TCA385, KX-UDT121, KX-UDT131, Attune II HD3, WX-CH455, WX-SB100, WX-ST100 or WX-ST300 handsets who want longer run time. It is not for users whose devices require a different voltage, chemistry or form factor, nor for buyers who need a multi-pack or an integrated charger.

Check the part number on your existing battery

Verify that the original cell carries one of the four Panasonic N4FUYYYY part numbers listed above before ordering. Confirm the handset model matches the compatible models shown. Ensure the battery compartment accepts a 3.7V Li-Ion pack with the same physical dimensions.

How it compares

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

Price $7.99
Cheaper than about 90% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameLI-42B
Part numberBA-1B-PS42B-B
Total capacity5.18 Wh
Product typeBattery
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 1 in
In the box
Pack contents1 Battery

Other versions of this model

5 more in the same range

Questions about this item

Which Panasonic cordless handset models work with the 3.7V 1400mAh LI-42B battery?

The LI-42B replaces the original pack in the Panasonic KX-TCA285, KX-TCA385, KX-UDT121, KX-UDT131, Attune II HD3, WX-CH455, WX-SB100, WX-ST100 and WX-ST300 handsets.

Will the battery fit if my handset currently uses a Panasonic N4FUYYYY0018 or N4FUYYYY0046 pack?

Yes — the LI-42B is a direct replacement for Panasonic part numbers N4FUYYYY0018, N4FUYYYY0019, N4FUYYYY0046 and N4FUYYYY0047, so it fits handsets that shipped with any of those packs.

How can I confirm the battery is charging correctly after I install it?

Place the handset on its charger; the charge indicator should light and the battery should reach full capacity without triggering the built-in over-charge, over-discharge, over-voltage, over-current or over-heating protection circuits.

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