We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Four Kastar LI-42B batteries and a triple LCD USB charger

Kastar

Kastar LI-42B 4-pack batteries + LCD triple USB charger

SKU CH-S9M2-K8VYW

Four 3.7 V 1400 mAh lithium-ion packs and an LCD triple USB charger that powers three cells simultaneously from any 5 V source

  • Total capacity5.18 Wh
  • Pack contents1 Charger + 4 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery & Charger
  • Product dimensions3 × 2 × 3 in
  • Key featuresLCD USB Triple charger, can charge 3 batteries at the same t
  • Intelligent LCD shows charging status and battery capacity
  • Triple USB charger powers three batteries simultaneously from one 5V source
  • Four 1400mAh lithium-ion cells deliver 5.18 Wh each for extended talk time
  • Direct replacements for Panasonic N4FUYYYY0018, N4FUYYYY0019, N4FUYYYY0046 and N4FUYYYY0047
  • Works with KX-TCA285, KX-TCA385, KX-UDT121, KX-UDT131 and Attune II HD3 handsets

Kastar LI-42B 4-pack with triple USB charger

This set provides four lithium-ion batteries rated at 3.7 V and 1400 mAh each, delivering 5.18 Wh per cell. The included LCD charger powers up to three batteries simultaneously from any 5 V 2 A USB source. It is designed for users who need reliable spare power for compatible Panasonic handsets.

Suits owners of listed Panasonic DECT handsets

The batteries match Panasonic part numbers N4FUYYYY0018, N4FUYYYY0019, N4FUYYYY0046 and N4FUYYYY0047. They fit handsets such as the KX-TCA285, KX-TCA385, KX-UDT121, KX-UDT131 and the Attune II HD3, WX-CH455, WX-SB100, WX-ST100 and WX-ST300 models. Buyers needing power for other cordless phone brands or smartphone devices should look elsewhere.

Four batteries give extended talk and standby time

Each 1400 mAh cell offers a full day of typical handset use, and the charger replenishes three at once at 4.2 V 0.5 A per slot. The LCD shows individual charge status and capacity level. Heavy users running multiple handsets continuously may find the three-bay limit requires staggered charging cycles.

How it compares

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

Price $25.99
Pricier than about 72% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameLI-42B
Part numberCH-LED3-4B-PS42B-A
Total capacity5.18 Wh
Product typeBattery & Charger
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 3 in
In the box
Pack contents1 Charger + 4 Batteries

Other versions of this model

5 more in the same range

Questions about this item

Which Panasonic handsets can use the 1400 mAh LI-42B batteries in this pack?

The batteries fit Panasonic KX-TCA285, KX-TCA385, KX-UDT121, KX-UDT131, Attune II HD3, WX-CH455, WX-SB100, WX-ST100 and WX-ST300 handsets.

Will the triple charger work with my existing 5 V 2 A USB wall adapter?

Yes, the charger accepts 5 V 2 A input via Micro USB and can run from any compliant wall or auto adapter or a computer USB port.

How do I confirm each battery is charging correctly on the LCD display?

The intelligent LCD shows individual charging status and capacity for all three slots simultaneously while charging.

More in Camera Batteries, Grips & Chargers

Similar items