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Black charger with four battery slots and two grey NP-FW50 batteries

Kastar

Kastar NP-FW50 2-Pack Battery & Quadruple Charger

SKU CH-98N6-WNM88

Two 1650 mAh Li-Ion batteries and a quadruple USB charger with Micro-USB and Type-C inputs for Sony NP-FW50 cameras

  • Total capacity11.8 Wh
  • Pack contents1 Charger + 2 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery & Charger
  • Product dimensions3.5 × 2 × 2.5 in
  • Key featuresQuadruple USB charger, can charge 4 batteries at the same ti
  • Charge four batteries at once with the quadruple USB charger
  • Swap plates to charge different battery types
  • Monitor charging status and capacity on the intelligent display
  • Power via Micro-USB or Type-C with included cable
  • Two 1650mAh 7.2V Li-Ion batteries deliver 11.8 Wh each

Kastar NP-FW50 2-Pack for Sony mirrorless

This kit supplies two 7.2 V lithium-ion batteries rated at 1650 mAh and 11.8 Wh each, matching the NP-FW50 form factor used across Sony Alpha and NEX mirrorless bodies. It targets photographers and videographers who need reliable spare power for extended shoots or travel.

Quadruple charger with dual USB inputs

The included charger accepts Micro-USB or USB-C at 5 V 2–3 A and can charge up to four batteries simultaneously. An intelligent display shows individual charging status and capacity, while the swappable plate design allows future compatibility with other battery types.

Capacity and charging headroom

Each battery delivers 11.8 Wh, enough for several hundred stills or roughly an hour of continuous video on compatible bodies. The charger outputs 8.4 V at 800 mA for one or two cells and 500 mA for three or four, so full charges take longer when all four slots are occupied.

How it compares

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

Price $18.99
Pricier than about 55% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameNP-FW50
Part numberLHD4-2B-FW50-G
Total capacity11.8 Wh
Product typeBattery & Charger
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3.5 × 2 × 2.5 in
In the box
Pack contents1 Charger + 2 Batteries

Other versions of this model

5 more in the same range

Questions about this item

How often will the NP-FW50 1650 mAh batteries need replacing under normal use?

Lithium-ion cells typically last 300 to 500 full charge cycles before capacity drops noticeably, so replacement timing depends on how frequently you deplete and recharge the two included packs.

What limits the charger when all four bays are used continuously?

With four batteries inserted the output falls to 500 mA per bay, extending each charge to roughly three hours and making total throughput the practical bottleneck.

How much heat or noise does the quadruple charger produce during all-day operation?

The compact 15 W unit has no fan and runs warm but not hot; the only audible sound is a faint coil hum that is inaudible beyond a few centimetres.

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