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One rectangular Li-Ion battery and a compact dual-slot USB charger with LCD screen and Micro-USB plus Type-C ports

Kastar

Kastar M53615 1650mAh battery & LTD2 USB charger

SKU CH-S9T4-ZFG9F

Replacement 3.6 V 1650 mAh Ni-MH battery with dual-bay LCD USB charger for Motorola Talkabout two-way radios

  • TypeBattery & Charger
  • Pack1 Charger + 1 Battery
  • ChemicalLi-Ion
  • Capacity5.94 Wh
  • Dimensions5*3*2 Inch
  • FeaturesLCD USB Dual charger, can charge 2 batteries at the same tim
  • 1650mAh Ni-MH battery powers extended talk time
  • LTD2 charger handles two batteries simultaneously
  • LED display shows real-time charge status and capacity
  • Micro-USB and Type-C inputs accept multiple power sources
  • Compatible with Motorola Talkabout MS350, MT350, T600 and many more models

Compatible Radio Battery Pack

This pack supplies a 1650mAh Ni-MH cell rated at 3.6V and a dual-bay LTD2 USB charger. It fits Motorola Talkabout two-way radios including the MS350, MS350R, MS355R, MT350, MT350R, MT352 and MT352R models. The combination suits outdoor teams, event crews and family groups who need a ready spare and a convenient way to recharge it.

Charging Thermals and Power

The charger accepts 5V input at 2-3A through either Micro-USB or Type-C ports and delivers 4.2V at 800mA per bay when charging two cells simultaneously. An intelligent LED display shows real-time charging status and remaining capacity for each battery. No active cooling is required and operation remains silent in normal indoor or vehicle use.

Build Integration Needs

The bundle includes a Micro-USB cable so the charger can draw power from any standard USB-A source such as a power bank, laptop or vehicle adapter. The single battery adds one full operating cycle to a compatible radio without increasing the radio's footprint. Users needing to charge more than two cells at once will require additional chargers.

Highlights

  • 1650mAh Ni-MH battery powers extended talk time
  • LTD2 charger handles two batteries simultaneously
  • LED display shows real-time charge status and capacity
  • Micro-USB and Type-C inputs accept multiple power sources
  • Compatible with Motorola Talkabout MS350, MT350, T600 and many more models

Specifications

BrandKastar
ModelM53615
Part NumberCH-LTD2-1B-M53615-P
TypeBattery & Charger
Pack1 Charger + 1 Battery
ChemicalLi-Ion
Capacity5.94 Wh
Dimensions5*3*2 Inch
FeaturesLCD USB Dual charger, can charge 2 batteries at the same time

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Questions about this item

How do I install the Kastar M53615 battery and charger, and what step is often missed?

Insert the 1650mAh Ni-MH battery into the radio’s battery compartment, then connect the LTD2 charger via Micro-USB or Type-C to a 5V 2-3A source; the step often missed is seating both batteries fully so the intelligent LED display registers each cell and shows charging status correctly.

What maintenance or replacement will the Kastar M53615 battery need later?

The 3.6V 1650mAh Ni-MH pack will gradually lose capacity after repeated charge cycles; plan to replace it when talk time drops noticeably, and keep the LTD2 charger’s Micro-USB and Type-C ports clean for reliable 8.4V/4.2V 800mA output.

What limit appears first during sustained use of the Kastar M53615 battery?

The 5.94Wh capacity limits continuous transmit time; under heavy push-to-talk duty the 800mA charge rate cannot keep pace, so the battery will deplete before the charger can replenish it during extended operations.

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