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Four rectangular lithium-ion batteries and a compact wall charger with foldable flat pins

Kastar

Kastar NP-FW50 4-pack battery & AC wall charger 1650mAh 7.4V

SKU CH-JVBN-Q60RT

Four 1650 mAh lithium-ion batteries with an AC wall charger for compatible Sony cameras and grips

  • Total capacity11.8 Wh
  • Pack contents1 Charger + 4 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery & Charger
  • Product dimensions3 × 2 × 3 in
  • Key featuresFoldable Flat Plug

Configuration 1 Charger + 4 Batteries

  • Four 1650mAh Li-Ion batteries keep multiple cameras powered
  • 8 Wh capacity per cell delivers extended shooting time
  • AC wall charger accepts 100-240V input for worldwide use
  • Foldable flat plug stores neatly in any camera bag
  • LED shows red while charging and green when complete

Four-pack replacement batteries

This set includes four Kastar NP-FW50 lithium-ion cells and a single AC wall charger. Each battery is rated at 7.4 volts and 1650 milliampere-hours, delivering 11.8 watt-hours. The pack is aimed at photographers using compatible Sony Alpha, NEX, Cyber-shot RX10 and ZV-E10 bodies who need spare power for extended shoots. The charger accepts 100 to 240 volt input for worldwide use.

Charger thermals and indicators

The wall charger operates from a folding flat plug and supplies a DC output of 8.4 volts at 600 milliamps. A red LED shows active charging while a green LED signals standby or a completed charge. No active cooling is present, so the unit runs silently on a desk or in a bag. Power draw in normal use stays within the low milliampere range.

Build integration and compatibility

The bundle replaces Sony NP-FW50 and W-series cells plus BC-VW1 and BC-TRW chargers. It also fits Sony VG-C1EM and VG-C2EM battery grips. The folding plug reduces bulk when packing alongside camera bodies such as the Alpha 6000, 6400, 6500 or RX10 series. Buyers needing higher-capacity cells or multi-bay charging will need a different solution.

How it compares

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

Price $22.99
Pricier than about 67% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameNP-FW50
Part numberNOCAR-4B-FW50
Total capacity11.8 Wh
Product typeBattery & Charger
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 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 connect the Kastar NP-FW50 charger to mains power?

Plug the foldable flat pin directly into any AC 100-240V 50-60Hz wall socket; the LED shows red while charging and green when the 1650mAh cells reach full charge.

When will the four 7.4V 1650mAh Li-Ion packs need replacing?

After roughly 300-500 full cycles the 11.8 Wh capacity drops noticeably; swap individual batteries when run-time falls below your needs.

What stops the charger from topping up all four batteries at once?

The 600 mA DC 8.4V output charges one NP-FW50 at a time, so sustained use requires rotating cells through the single slot.

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