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

Kastar

Kastar NP-FW50 3-Pack Battery & LTD2 USB Charger

SKU CH-9JFR-3XY1P

Three 7.2 V 1650 mAh Li-Ion NP-FW50 batteries and a dual-slot USB charger with LCD status display for Sony W Series, BC-VW1, BC-TRW, NEX-C3, NEX-C5, NEX-F3

  • TypeBattery & Charger
  • Pack1 Charger + 3 Batteries
  • ChemicalLi-Ion
  • Capacity11.8 Wh
  • Dimensions5*3*3 Inch
  • FeaturesLCD USB Dual charger, can charge 2 batteries at the same tim
  • Three 1650 mAh Li-Ion batteries power extended shoots
  • Dual-slot USB charger fills two packs at once
  • Micro-USB and Type-C inputs let you charge from power banks
  • LCD screen shows real-time capacity for each battery
  • Replaces Sony NP-FW50 and works with Alpha, NEX and RX10 models

Three-battery kit for Sony NP-FW50 cameras

This set includes three lithium-ion batteries rated at 7.2V and 1650mAh each, delivering 11.8Wh per cell. They are built as direct replacements for the Sony NP-FW50 and W-series packs used across numerous Alpha, NEX and Cyber-shot models. The bundle suits photographers who need extended shooting time without relying on a single original pack.

Dual-slot USB charger with interchangeable plates

The LTD2 charger powers two batteries simultaneously and accepts both Micro-USB and USB-C inputs at 5V 2-3A. An integrated LCD shows real-time capacity and charging status for each slot. A Micro-USB cable is included and the plate system can be swapped to support other battery types beyond the NP-FW50 form factor.

Limited to 5V USB sources and 800mA per channel

Maximum output is 8.4V at 800mA whether one or two batteries are inserted, so charge speed is capped by the USB power source. The unit does not support AC wall adapters or higher-amperage DC inputs. Users needing faster top-ups or multi-bay charging beyond two cells will require a different charger platform.

Highlights

  • Three 1650 mAh Li-Ion batteries power extended shoots
  • Dual-slot USB charger fills two packs at once
  • Micro-USB and Type-C inputs let you charge from power banks
  • LCD screen shows real-time capacity for each battery
  • Replaces Sony NP-FW50 and works with Alpha, NEX and RX10 models

Specifications

BrandKastar
ModelNP-FW50
Part NumberCH-LTD2-3B-FW50
TypeBattery & Charger
Pack1 Charger + 3 Batteries
ChemicalLi-Ion
Capacity11.8 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 three 1650 mAh Li-Ion batteries need replacing under normal use?

Lithium-Ion cells typically last 300–500 full charge cycles before capacity drops noticeably, so with three batteries in rotation you can go longer between replacements.

What limit appears first when the LTD2 charger runs continuously at its 8.4 V 800 mA per bay output?

The 5 V 2–3 A input ceiling is reached when both bays draw 800 mA each, so the charger cannot sustain higher current without a stronger USB power source.

How much heat and noise does the dual-bay charger produce when powered all day from a 15 W USB adapter?

The charger has no fan and only warm components, so it stays silent and barely warm to the touch even during extended dual-bay charging sessions.

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