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Three rectangular lithium-ion camera batteries in light grey finish

Kastar

Kastar LI-42B 3-pack camera battery 1400mAh 3.7V 5.18Wh

SKU CH-28MX-NC4V5

Three lithium-ion packs rated 1400mAh at 3.7V replace Panasonic handset cells with over-charge and over-heat protection

  • Total capacity5.18 Wh
  • Pack contents3 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery
  • Product dimensions3 × 2 × 3 in
  • Key featuresHigh Capacity and Manufacture Price.
  • Longer shooting sessions with 1400 mAh lithium-ion capacity
  • Three batteries included for uninterrupted power on the go
  • UL1642 and CE certified cells with multi-protection circuit
  • Direct replacement for Panasonic N4FUYYYY0018, 0019, 0046, 0047
  • Fits KX-TCA285, KX-TCA385, KX-UDT121, KX-UDT131 and more

Compatible Panasonic DECT Handsets

This three-pack of Kastar LI-42B lithium-ion batteries replaces the original power cells in Panasonic KX-TCA285, KX-TCA385, KX-UDT121, KX-UDT131, Attune II HD3, WX-CH455, WX-SB100, WX-ST100 and WX-ST300 cordless phones. Each unit delivers 3.7 volts and 1400 milliampere-hours for extended talk and standby time. The pack includes three batteries so you can equip multiple handsets or keep spares charged.

Built-in Safety Protection

The cells meet UL1642 and CE standards and include integrated circuits that guard against over-charge, over-discharge, over-voltage, over-current and over-heating. This protection helps preserve battery health over repeated cycles. Buyers needing a different voltage, chemistry or form factor should look at other listings.

5.18 Watt-Hour Capacity

Each battery is rated at 5.18 watt-hours, which determines how long a compatible handset operates between charges. Verify that your device accepts this energy rating before purchase.

How it compares

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

Price $16.99
Typical for this category: the median of 5,900 items is $17.99.

Specifications

Product
Brand nameKastar
Model nameLI-42B
Part numberBA-3B-PS42B-B
Total capacity5.18 Wh
Product typeBattery
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 3 in
In the box
Pack contents3 Batteries

Other versions of this model

5 more in the same range

Questions about this item

How can I confirm the Kastar LI-42B 3.7V battery is working correctly after installing it in my Panasonic KX-TCA285 handset?

The handset should power on immediately and display a full charge indicator; the built-in protection circuit prevents over-charge, over-discharge, over-voltage, over-current and over-heating during use.

What is included in the pack and does it come with a charger for the 1400mAh Li-Ion cells?

The pack contains three Kastar LI-42B batteries rated at 5.18 Wh each; no charger is included, so you will use the existing Panasonic handset cradle or base station to recharge them.

Which of the listed compatible models uses the N4FUYYYY0046 part number so I pick the right version?

Panasonic part number N4FUYYYY0046 fits the KX-UDT121, KX-UDT131, Attune II HD3, WX-CH455, WX-SB100, WX-ST100 and WX-ST300 DECT handsets.

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