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Four lithium-ion batteries and a compact dual-slot USB charger with LCD display

Kastar

Kastar NP-FM500H 4-pack battery and LTD2 USB charger

SKU CH-FK36-86JYR

Four 2400 mAh Li-Ion batteries and a dual-slot USB charger with LCD status for Sony Alpha models

  • Total capacity7.76 Wh
  • Pack contents1 Charger + 4 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery & Charger
  • Product dimensions5 × 3 × 3 in
  • Key featuresLCD USB Dual charger, can charge 2 batteries at the same tim
  • Four NP-FM500H batteries deliver 2400 mAh each for extended shooting
  • Dual-slot charger powers two batteries simultaneously from a single USB source
  • Micro-USB and USB-C inputs let you recharge from power banks or wall adapters
  • LCD screen shows real-time charge level and status for each slot
  • 4 V lithium-ion cells match original voltage for reliable camera operation

Four NP-FM500H batteries with dual USB charger

This set supplies four 7.4 V lithium-ion batteries rated at 2400 mAh each and a compact charger that powers two cells simultaneously. It targets photographers using compatible Sony Alpha and SLT bodies who need reliable spares for long shooting sessions. The charger accepts 5 V input via Micro-USB or USB-C, drawing up to 15 W from common power banks or wall adapters. An LCD panel shows individual charge status and remaining capacity for each battery.

Drop-in installation with interchangeable plates

Each battery matches the NP-FM500H form factor and voltage, so it seats directly in the camera without modification. The charger uses swappable plates to accommodate different battery types; users must ensure the correct plate is fitted before charging. The only common issue is forgetting to seat both batteries firmly when charging a pair, which leaves one cell uncharged. No firmware updates or camera menu changes are required for the batteries to report capacity correctly.

Limited to 7.4 V Li-Ion cells and 5 V USB sources

The charger outputs 8.4 V at 800 mA per slot, a rate fixed by the Li-Ion chemistry and the USB input specification. It cannot charge larger-capacity packs faster, nor can it operate from voltages above 5 V. The four included batteries provide 7.76 Wh each, so total portable energy is finite and scales linearly with the number of cells carried. Photographers needing higher voltage or faster top-up times must seek a different charging platform.

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 nameNP-FM500H
Part numberCH-LTD2-4B-FM500H-K
Total capacity7.76 Wh
Product typeBattery & Charger
Power
Battery chemistryLi-Ion
Size & build
Product dimensions5 × 3 × 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

How do I confirm the LTD2 charger is charging both NP-FM500H batteries correctly after plugging it in?

The intelligent LCD screen shows the charging status and battery capacity for each of the two slots independently, so you can see both cells reaching 8.4 V 800 mA output.

What items are included in the CH-LTD2-4B-FM500H-K pack and what extra cable or adapter might I need?

The box contains one LTD2 dual charger with interchangeable plates, four 7.4 V 2400 mAh NP-FM500H Li-Ion batteries, and a Micro-USB cable; you must supply your own 5 V 2-3 A USB power source or a Type-C cable if you prefer that input.

Which battery version should I choose for my Alpha 77 II or Alpha 99 — the 7.76 Wh NP-FM500H or a different capacity?

The pack only supplies the 7.76 Wh 2400 mAh NP-FM500H cells that replace the Sony NP-FM500H and NP-FM500HN; no other capacity is offered in this kit, so this is the version to use with Alpha 77 II, Alpha 99 and the other listed models.

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