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Three Kastar LI-42B batteries and LCD triple USB charger

Kastar

Kastar 3 Pack LI-42B Battery & LCD Triple USB Charger

SKU CH-XT4Q-ZP290

Three 1400 mAh lithium-ion batteries and a triple USB charger with LCD status display for Panasonic handsets

  • TypeBattery & Charger
  • Pack1 Charger + 3 Batteries
  • ChemicalLi-Ion
  • Capacity5.18 Wh
  • Dimensions3*2*3 Inch
  • FeaturesLCD USB Triple charger, can charge 3 batteries at the same t
  • Three 1400mAh Li-Ion batteries deliver long talk time
  • LCD triple charger powers three packs simultaneously
  • USB input accepts wall, car or computer power
  • Intelligent display shows real-time charge level
  • Compatible with Panasonic KX-TCA and KX-UDT handsets

Three-pack Li-ion batteries with triple USB charger

This set includes three Kastar LI-42B lithium-ion batteries rated at 1400 mAh and 3.7 V, plus a single charger that can replenish all three simultaneously. It is built for users of compatible Panasonic cordless handsets who need ready spares for extended talk time.

Sustained charging across three cells

The LCD triple charger delivers 4.2 V at 0.5 A to each bay, so every battery receives a steady current throughout the cycle rather than a quick top-up. The display shows individual capacity progress, letting you confirm full charge before returning handsets to service.

Low-power USB operation

The charger draws 5 V at 2 A (10 W) from any USB wall adapter, car charger or computer port via the included Micro-USB cable. No bulky mains brick is required, keeping heat and fan noise absent during normal desktop or travel use.

Highlights

  • Three 1400mAh Li-Ion batteries deliver long talk time
  • LCD triple charger powers three packs simultaneously
  • USB input accepts wall, car or computer power
  • Intelligent display shows real-time charge level
  • Compatible with Panasonic KX-TCA and KX-UDT handsets

Specifications

BrandKastar
ModelLI-42B
Part NumberCH-LED3-3B-PS42B-A
TypeBattery & Charger
Pack1 Charger + 3 Batteries
ChemicalLi-Ion
Capacity5.18 Wh
Dimensions3*2*3 Inch
FeaturesLCD USB Triple charger, can charge 3 batteries at the same time

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Questions about this item

Does the LCD triple charger run hot or draw much power when charging three LI-42B batteries all day?

The charger takes 5 V at 2 A for 10 W total and delivers 4.2 V at 0.5 A per slot, so heat and power draw stay modest during continuous use.

What power source do I already need to run this charger?

A USB wall adapter, car charger or computer port that can supply 5 V at 2 A, plus the included Micro USB cable.

Will these 1400 mAh 3.7 V batteries fit the Panasonic KX-TCA285 and KX-UDT121 handsets I still use?

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

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