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Two Kastar LI-42B batteries and an LTD2 USB charger with LCD screen

Kastar

Kastar 2-Pack LI-42B Battery & LTD2 USB Charger for Panasonic

SKU CH-BF8C-DVXHA

Two 1400 mAh lithium-ion batteries with a dual USB charger featuring LCD status display and Micro-USB plus Type-C inputs

  • TypeBattery & Charger
  • Pack1 Charger + 2 Batteries
  • ChemicalLi-Ion
  • Capacity5.18 Wh
  • Dimensions5*3*2 Inch
  • FeaturesLCD USB Dual charger, can charge 2 batteries at the same tim
  • Two 1400mAh Li-Ion batteries deliver 5.18 Wh each for extended talk time
  • LCD USB dual charger powers two batteries simultaneously with intelligent status display
  • Micro-USB and Type-C inputs plus included cable give flexible charging options
  • Charger accepts 5V 2-3A input and outputs 4.2V 800mA per slot for efficient recharging
  • Compatible with Panasonic KX-TCA285 KX-TCA385 KX-UDT121 KX-UDT131 handsets and N4FUYYYY0018 N4FUYYYY0019 N4FUYYYY0046 N4FUYYYY0047 batteries

Two Li-Ion batteries with dual USB charger

This Kastar set supplies two 3.7 V lithium-ion batteries rated at 1400 mAh and a LTD2 charger that powers both simultaneously. It is built for users of Panasonic KX-TCA285, KX-TCA385, KX-UDT121 and KX-UDT131 handsets who need reliable replacements for the original N4FUYYYY cells.

Charges from any 5 V USB source

The charger accepts Micro-USB or USB-C input at 5 V 2-3 A and delivers 4.2 V 800 mA per slot, so it runs from common power banks, wall adapters or laptop ports. An LCD panel shows real-time capacity for each battery, and interchangeable plates allow future cell types without a new charger.

Low heat and silent operation

Li-Ion chemistry and the modest 800 mA charge rate keep temperatures low during the typical two-hour fill. No fan is present, so the unit runs silently on a desk or in a gear bag. Total energy per cell is 5.18 Wh, well within air-transport limits for carry-on luggage.

Highlights

  • Two 1400mAh Li-Ion batteries deliver 5.18 Wh each for extended talk time
  • LCD USB dual charger powers two batteries simultaneously with intelligent status display
  • Micro-USB and Type-C inputs plus included cable give flexible charging options
  • Charger accepts 5V 2-3A input and outputs 4.2V 800mA per slot for efficient recharging
  • Compatible with Panasonic KX-TCA285 KX-TCA385 KX-UDT121 KX-UDT131 handsets and N4FUYYYY0018 N4FUYYYY0019 N4FUYYYY0046 N4FUYYYY0047 batteries

Specifications

BrandKastar
ModelLI-42B
Part NumberCH-LTD2-2B-PS42B-A
TypeBattery & Charger
Pack1 Charger + 2 Batteries
ChemicalLi-Ion
Capacity5.18 Wh
Dimensions5*3*2 Inch
FeaturesLCD USB Dual charger, can charge 2 batteries at the same time

Questions about this item

How long will the 1400 mAh LI-42B batteries last on a full day of calls?

Each 3.7 V 1400 mAh cell stores 5.18 Wh; actual talk time depends on the handset model and signal strength.

Does the LTD2 charger get hot or noisy when charging both batteries overnight?

The charger runs silently with no fan; output is 4.2 V at 800 mA per slot so heat stays low during dual charging.

Which Panasonic handsets must I already own for these batteries to fit?

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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