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Four rectangular batteries and a small wall charger with folded prongs

Kastar

Kastar MX990 4-Pack Battery & Charger for Panasonic WX-B3030

SKU CH-FN3T-Q72K7

Four lithium-ion batteries and a foldable-plug AC charger power compatible Panasonic headset systems

  • TypeBattery & Charger
  • Pack1 Charger + 4 Batteries
  • ChemicalLi-Ion
  • Capacity7.03 Wh
  • Dimensions3*2*3 Inch
  • FeaturesFoldable Flat Plug
  • Replaces Panasonic WX-B3030, BX-B3030 and CE-3030 batteries
  • Powers Panasonic WX-T3020, WX-H3030 and WX-H3050 headsets
  • 1900 mAh Li-Ion cells deliver 7.03 Wh each
  • Foldable flat plug charger accepts 100-240 V 50-60 Hz
  • Red LED charging, green LED full — four batteries included

4-Pack Li-Ion Battery Kit for Panasonic Headsets

This Kastar MX990 set includes four 3.7 V lithium-ion batteries rated at 1900 mAh each. They replace Panasonic WX-B3030, WX-B3030M, BX-B3030 and CE-3030 cells. The pack suits users who run Panasonic WX-T3020, WX-H3030, WX-H3050, WX-CH450 or WX-CT420 headset systems and want spare power on hand.

Foldable-Plug AC Charger with LED Status

The bundled wall charger accepts 100 to 240 V input at 50 or 60 Hz and delivers 4.2 V at 600 mA. Its foldable flat pins make storage compact. A red LED shows charging; a green LED signals standby or full charge so you can confirm status at a glance.

Ideal for Multi-Headset Deployments

Teams managing several compatible Panasonic headsets gain four ready-to-swap batteries and a single charger that handles them all. Buyers needing higher-capacity cells, faster charge rates or a multi-bay charger should look at other options.

Highlights

  • Replaces Panasonic WX-B3030, BX-B3030 and CE-3030 batteries
  • Powers Panasonic WX-T3020, WX-H3030 and WX-H3050 headsets
  • 1900 mAh Li-Ion cells deliver 7.03 Wh each
  • Foldable flat plug charger accepts 100-240 V 50-60 Hz
  • Red LED charging, green LED full — four batteries included

Specifications

BrandKastar
ModelMX990
Part NumberNOCAR-4B-MX990-C
TypeBattery & Charger
Pack1 Charger + 4 Batteries
ChemicalLi-Ion
Capacity7.03 Wh
Dimensions3*2*3 Inch
FeaturesFoldable Flat Plug

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Questions about this item

How many charge cycles can the 1900mAh lithium-ion batteries handle before they need replacing?

Lithium-ion cells of this capacity typically deliver several hundred full cycles; expect gradual capacity loss after extended daily use.

What limits continuous charging when the AC wall charger runs from 100~240V 50~60Hz mains?

The charger outputs 4.2V at 600mA, so each 7.03Wh battery reaches full charge in roughly three hours.

Does the foldable flat-plug charger generate noticeable heat or fan noise during all-day operation?

The compact wall adapter has no fan and runs silently; mild warmth is normal while the red LED shows charging.

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