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

Kastar

Kastar NP-FM50 4-Battery & LTD2 USB Charger Kit

SKU CH-554F-Z17E7

Four 2300 mAh lithium-ion batteries and a dual-slot USB charger with LCD status display for Sony Handycam and Cyber-shot models

  • Total capacity17.02 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 batteries deliver extended shooting time for compatible Sony cameras
  • Dual-bay USB charger powers two packs simultaneously from any 5 V source
  • LCD screen shows real-time charge level and status for each cell
  • Interchangeable plate design lets the charger handle additional Sony battery types
  • Micro-USB and USB-C inputs plus included cable give flexible power options

Kit Contents and Target User

This kit bundles four lithium-ion NP-FM50 batteries rated at 2300 mAh each with an LTD2 dual-slot USB charger. It is designed for owners of compatible Sony camcorders and digital cameras who need spare power for extended shoots. The package replaces original Sony NP-FM30, NP-FM50, NP-FM55H, NP-QM50, NP-QM51 and higher-capacity NP-FM70, NP-FM71, NP-QM71, NP-QM71D, NP-FM90, NP-FM91, NP-QM91, NP-QM91D cells. It does not suit cameras that require proprietary battery shapes outside this NP-FM/QM series.

Capacity and Practical Headroom

Each 7.4 V cell stores 17.02 Wh, giving roughly 2300 mAh per battery. Four units provide a combined reserve that can sustain a typical Handycam through several hours of continuous recording or a full day of intermittent use. The charger powers two batteries simultaneously at 800 mA per slot, so a depleted pair reaches full charge in about three hours. Users needing faster turnaround or higher single-battery capacity for power-hungry models like the DCR-TRV950 or HDR-HC1 will find the 2300 mAh limit restrictive.

USB Charging Interface Limits

The LTD2 charger accepts 5 V at 2 to 3 A through either Micro-USB or USB Type-C ports, drawing a maximum of 15 W from any standard USB power adapter or power bank. Output is fixed at 8.4 V and 800 mA per channel regardless of the source capability. The intelligent LCD shows real-time capacity percentage for each bay. Because the input is limited to USB power delivery levels, the charger cannot operate from legacy Sony BC-VM50, BC-VM10 or BC-V615 AC adapters, nor can it charge batteries outside the listed NP-FM/QM compatibility range.

How it compares

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

Price $28.99
Pricier than about 76% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameNP-FM50
Part numberCH-LTD2-4B-FM50-L
Total capacity17.02 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

Will these NP-FM50 batteries work in my older Sony DCR-TRV730 camcorder?

Yes, the kit is listed as a replacement for the DCR-TRV730 and many other Sony Handycam models that use NP-FM series batteries.

How does the LTD2 charger show that both batteries are charging correctly?

The intelligent LCD screen displays the charging status and battery capacity for each of the two slots independently.

Does the package include a wall adapter for the Micro-USB and Type-C inputs?

The kit includes the LTD2 dual charger, four NP-FM50 batteries, and a Micro-USB cable; a 5V 2-3A USB power adapter must be purchased separately.

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