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

Kastar

Kastar NP-FW50 4-pack camera battery with LTD2 USB charger

SKU CH-QE84-M4RQV

Four NP-FW50 lithium-ion batteries and a dual USB charger with LCD display for Sony SLT-A35, SLT-A37, SLT-A55 and Cyber-shot DSC-RX10 series cameras

  • TypeBattery & Charger
  • Pack1 Charger + 4 Batteries
  • ChemicalLi-Ion
  • Capacity11.8 Wh
  • Dimensions5*3*3 Inch
  • FeaturesLCD USB Dual charger, can charge 2 batteries at the same tim
  • Four batteries keep multiple Sony cameras shooting longer
  • 1650 mAh Li-Ion cells deliver 11.8 Wh each
  • Dual-slot USB charger powers two packs simultaneously
  • Micro-USB and Type-C inputs accept common power sources
  • LCD screen shows real-time charge level for each battery

Four-pack NP-FW50 replacement set

This pack supplies four 7.2 V lithium-ion cells rated at 1650 mAh each, matching the NP-FW50 form factor used across many Sony Alpha and Cyber-shot bodies. It is intended for photographers and video creators who need several spare batteries for long shooting days or travel.

Dual-slot USB charger with LCD

The bundled LTD2 charger powers two batteries simultaneously from a 5 V 2–3 A source, delivering 8.4 V at 800 mA per slot. An integrated LCD shows real-time charge level for each cell, and both Micro-USB and USB-C inputs are provided so you can use common power banks or wall adapters.

Interchangeable plate system

The charger accepts swappable plates, letting you charge other battery types without buying a new base unit. A short Micro-USB cable is included in the box, while USB-C cables are not supplied. Buyers needing to charge more than two cells at once or requiring a dedicated AC mains adapter will need separate accessories.

Highlights

  • Four batteries keep multiple Sony cameras shooting longer
  • 1650 mAh Li-Ion cells deliver 11.8 Wh each
  • Dual-slot USB charger powers two packs simultaneously
  • Micro-USB and Type-C inputs accept common power sources
  • LCD screen shows real-time charge level for each battery

Specifications

BrandKastar
ModelNP-FW50
Part NumberCH-LTD2-4B-FW50-J
TypeBattery & Charger
Pack1 Charger + 4 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 do I insert the four NP-FW50 batteries into the LTD2 charger so both charge at once?

Slide each battery into either of the two slots until it clicks; the LCD then shows two bars filling at 800 mA each.

When will the 1650 mAh cells need replacing?

After roughly 300 to 500 full cycles the runtime drops below 80 % of the original 11.8 Wh.

What stops the charger from running indefinitely on a 5 V 2 A power bank?

The 15 W input limit means a 5 V 2 A source can only sustain one slot at 800 mA; the second slot pauses until current headroom returns.

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