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

Kastar

Kastar NP-FM50 4-Pack Battery & LTD2 USB Charger for Sony DCR-TRV330/340/350/355/360/380/430/460/480/530

SKU CH-V4MF-FH5VM

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

  • TypeBattery & Charger
  • Pack1 Charger + 4 Batteries
  • ChemicalLi-Ion
  • Capacity17.02 Wh
  • Dimensions5*3*3 Inch
  • FeaturesLCD USB Dual charger, can charge 2 batteries at the same tim
  • Four batteries keep a camcorder running longer
  • 2300 mAh lithium-ion cells store 17.02 Wh each
  • USB dual charger powers two packs at once
  • Micro-USB and Type-C inputs accept many power sources
  • LCD screen shows charge level for every battery

Four-battery pack with dual USB charger

This set provides four lithium-ion batteries rated at 7.4 volts and 2300 milliampere-hours each, plus a compact charger that powers two cells simultaneously. It fits the Sony DCR-TRV series camcorders listed in the compatibility data and replaces the original NP-FM50 packs. Photographers and videographers who need extended recording time without carrying a wall adapter will find the kit convenient.

Thermals noise and power draw

The charger accepts 5 volts at 2 to 3 amps through either Micro-USB or USB-C inputs and delivers 8.4 volts at 800 milliamps per slot. An integrated LCD panel shows real-time charging status and remaining capacity for each battery. No active cooling is used, so operation stays silent and surface temperatures remain low during typical recharge cycles.

Sustained load behaviour

Each 17.02 watt-hour cell supports long recording sessions and holds charge well between uses thanks to lithium-ion chemistry. The dual-slot design lets users rotate pairs continuously, keeping a camcorder running while the other two batteries replenish. Swappable charging plates allow the same unit to service other compatible Sony battery models when needed.

Highlights

  • Four batteries keep a camcorder running longer
  • 2300 mAh lithium-ion cells store 17.02 Wh each
  • USB dual charger powers two packs at once
  • Micro-USB and Type-C inputs accept many power sources
  • LCD screen shows charge level for every battery

Specifications

BrandKastar
ModelNP-FM50
Part NumberCH-LTD2-4B-FM50-K
TypeBattery & Charger
Pack1 Charger + 4 Batteries
ChemicalLi-Ion
Capacity17.02 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 do I install the Kastar NP-FM50 batteries in my Sony DCR-TRV330 and what step do people miss?

Slide each 7.4V 2300mAh pack into the camcorder battery compartment until the latch clicks. The step often missed is seating the battery fully so the contacts align — otherwise the camera will not power on.

What maintenance or replacement will the LTD2 USB charger need later?

The charger has Micro-USB and Type-C inputs with an LCD showing status. No user-serviceable parts are inside; if the ports or screen fail the whole unit is replaced.

What limit appears first when charging two NP-FM50 packs continuously on the LTD2 charger?

The dual-slot charger outputs 8.4V at 800mA per slot. Sustained dual charging is limited by that 800mA rate — each 17.02 Wh battery takes several hours to reach full capacity.

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