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Four rectangular batteries and a compact dual-slot USB charger with LCD screen

Kastar

Kastar 4-pack NP-FM500H 2400mAh batteries and LTD2 USB dual charger

SKU CH-M39K-SH6W9

Four 2400mAh Li-Ion batteries and an LCD dual charger with Micro-USB and Type-C inputs for Sony Alpha DSLR and SLT models

  • TypeBattery & Charger
  • Pack1 Charger + 4 Batteries
  • ChemicalLi-Ion
  • Capacity7.76 Wh
  • Dimensions5*3*3 Inch
  • FeaturesLCD USB Dual charger, can charge 2 batteries at the same tim
  • Four 2400mAh batteries give extended shooting time
  • LCD USB dual charger powers two batteries simultaneously
  • Micro-USB and Type-C inputs offer flexible charging options
  • Intelligent LED display shows real-time charging status and capacity
  • Charger accepts interchangeable plates for different battery types

Replacement kit for Sony Alpha DSLRs

This kit supplies four 7.4V 2400mAh lithium-ion batteries and an LTD2 dual charger that replaces the Sony NP-FM500H and BC-VM10. It fits a long list of Alpha models including the A200, A300, A350, A450, A500, A550, A560, A580, A700, A850, A900 and SLT-A57, A58, A65, A68, A77 series. Photographers who need several spares for a day of shooting can swap cells without hunting for a wall outlet.

LCD dual charger with two USB inputs

The LTD2 unit charges two batteries at once and shows status and capacity on its built-in LCD. It accepts power through either a Micro-USB or a USB Type-C port at 5V 2-3A (15W) and delivers 8.4V at 800mA per slot. A Micro-USB cable is included so the charger can run from a power bank, a laptop or any standard USB source while you are on location.

Limited to 7.4V NP-FM500H form factor

Each cell stores 7.76Wh at 7.4V, so total energy is fixed by that chemistry and voltage. The charger only handles this specific battery size; it cannot charge larger packs or different voltages. Users who need higher capacity per cell or a charger for other battery types will need separate equipment.

Highlights

  • Four 2400mAh batteries give extended shooting time
  • LCD USB dual charger powers two batteries simultaneously
  • Micro-USB and Type-C inputs offer flexible charging options
  • Intelligent LED display shows real-time charging status and capacity
  • Charger accepts interchangeable plates for different battery types

Specifications

BrandKastar
ModelNP-FM500H
Part NumberCH-LTD2-4B-FM500H-B
TypeBattery & Charger
Pack1 Charger + 4 Batteries
ChemicalLi-Ion
Capacity7.76 Wh
Dimensions5*3*3 Inch
FeaturesLCD USB Dual charger, can charge 2 batteries at the same time

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Questions about this item

How often will the 2400mAh Li-Ion cells need replacing under normal use?

Li-Ion packs typically last 300 to 500 full charge cycles before capacity drops noticeably, so expect to swap the four batteries every couple of years with regular shooting.

What stops the LTD2 charger from running indefinitely when both bays are full?

The charger outputs 8.4V at 800mA per bay and draws 5V 2-3A 15W max; thermal protection cuts power if the unit overheats during extended dual-bay charging.

How hot or loud does the charger get when powered all day from a 5V 2-3A source?

The LTD2 has no fan and relies on passive cooling; it stays warm but silent during continuous operation, and the intelligent LED display shows status without adding audible noise.

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