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Two lithium-ion batteries and a triple USB charger with LCD screen

Kastar

Kastar LI-42B 2 Pack Battery & LCD Triple USB Charger

SKU CH-773G-GBDDS

Two 1400 mAh lithium-ion batteries and an LCD triple USB charger for Panasonic WX-CH455 WX-SB100 WX-ST100 WX-ST300 DECT KX-TCA285 KX-TCA385 KX-UDT121 KX-UDT131 handsets

  • Total capacity5.18 Wh
  • Pack contents1 Charger + 2 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery & Charger
  • Product dimensions3 × 2 × 2 in
  • Key featuresLCD USB Triple charger, can charge 3 batteries at the same t
  • Charges three batteries simultaneously with the LCD triple USB charger
  • Intelligent LCD display shows real-time charging status and battery capacity
  • Two 1400mAh lithium-ion batteries provide 5.18 Wh each for extended use
  • Powered by any 5V 2A USB source including wall, auto or computer ports
  • Compatible with Panasonic DECT handsets including KX-TCA285, KX-TCA385, KX-UDT121 and KX-UDT131

Ready-to-use power for DECT handsets

This pack delivers two 1400 mAh lithium-ion cells plus a triple-bay charger so Panasonic KX-TCA285 KX-TCA385 KX-UDT121 KX-UDT131 Attune II HD3 WX-CH455 WX-SB100 WX-ST100 WX-ST300 users can keep handsets active without waiting for a single dock. The charger accepts any 5 V 2 A USB source and ships with a Micro USB cable for immediate setup.

Consistent output across three slots

Each bay supplies a steady 4.2 V at 0.5 A so all three batteries reach full capacity at the same rate whether they are inserted together or staggered throughout a shift. The LCD panel shows real-time capacity percentage for every cell removing guesswork during high-volume call periods.

Cool silent operation from a 10 W input

The charger draws only 10 W from the USB supply and produces no audible fan noise while the intelligent controller terminates charge at 4.2 V per cell preventing heat build-up. The compact 3 by 2 by 2 inch footprint stays comfortable on a desk or in a kit bag during daily use.

How it compares

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

Price $18.99
Pricier than about 55% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameLI-42B
Part numberCH-LED3-2B-PS42B-B
Total capacity5.18 Wh
Product typeBattery & Charger
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 2 in
In the box
Pack contents1 Charger + 2 Batteries

Other versions of this model

5 more in the same range

Questions about this item

Does the triple USB charger generate noticeable heat or noise when charging three batteries continuously?

The charger runs from a 5 V 2 A USB source and delivers 4.2 V at 0.5 A per slot, so total output is modest and it uses no fan, keeping heat and noise low during all-day use.

What power source must I already have to run the charger?

You need any USB port or adapter that can supply 5 V at 2 A (10 W); the box includes a Micro-USB cable for that connection.

Will these 1400 mAh batteries fit my Panasonic KX-TCA285 and KX-UDT121 handsets?

Yes, the LI-42B cells match Panasonic part numbers N4FUYYYY0018, N4FUYYYY0019, N4FUYYYY0046 and N4FUYYYY0047 used in those models.

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