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Four lithium-ion batteries and a compact wall charger with foldable flat plug

Kastar

Kastar MX990 4-Pack Battery & Charger for Listen LA-365

SKU CH-D8VM-X26KD

Four lithium-ion batteries and a foldable-plug AC charger power Listen LA-365, iDSP RF Receiver, LR-5200-072, M1, Media Interface and Point M1 Microphone

  • Total capacity7.03 Wh
  • Pack contents1 Charger + 4 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery & Charger
  • Product dimensions3 × 2 × 3 in
  • Key featuresFoldable Flat Plug
  • Compatible with Listen LA-365 battery models
  • Works with Listen iDSP RF Receiver and M1 headsets
  • Lithium-Ion 3.7 V 1900 mAh cells deliver 7.03 Wh each
  • AC 100-240 V input charger with foldable flat plug
  • LED shows red while charging and green when full

Kastar MX990 4-Pack for Listen LA-365

The Kastar MX990 kit supplies four lithium-ion batteries and a matching AC wall charger for the Listen LA-365 cell. It is built for users of Listen iDSP RF receivers, LR-5200-072 units, M1 Media Interfaces and Point M1 microphones who need reliable spares for daily operation.

Replaces single OEM cells and basic chargers

Each 3.7V 1900mAh pack delivers 7.03 Wh, matching the original Listen LA-365 specification. The included charger accepts 100-240V at 50-60Hz and outputs 4.2V at 600mA, so the jump is worth it when a venue runs multiple receivers through a full day and the stock single-bay charger cannot keep pace.

Fits into a multi-receiver workflow

The charger’s foldable flat plug stores flat in a gear bag and its red-green LED shows charge status at a glance. Four cells let technicians rotate batteries across Listen iDSP, LR-5200-072, M1 and Point M1 hardware without waiting for a single bay, freeing up outlets and reducing downtime during events.

How it compares

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

Price $26.99
Pricier than about 74% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameMX990
Part numberNOCAR-4B-MX990-D
Total capacity7.03 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

Will the foldable flat plug fit a standard UK wall socket?

The charger accepts AC 100-240 V input, but the foldable flat plug is designed for North American sockets; a travel adapter is needed for UK mains.

How do I charge the four 1900 mAh batteries correctly?

Insert each battery into the charger; the red LED shows charging and turns green when the 4.2 V, 600 mA cycle is complete.

When should I replace the 7.03 Wh lithium-ion cells?

Replace them when run-time drops noticeably or the charger LED stays red beyond the normal cycle, indicating the cells no longer hold a full charge.

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