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Four rectangular black camera batteries with gold contacts on one end

Kastar

Kastar NP-FW50 4-Pack 1650mAh 7.2V Camera Battery

SKU CH-YPGC-KQEEQ

Four lithium-ion packs deliver 1650 mAh at 7.2 V for Sony mirrorless and Cyber-shot cameras

  • TypeBattery
  • Pack4 Batteries
  • ChemicalLi-Ion
  • Capacity11.8 Wh
  • Dimensions3*2*3 Inch
  • FeaturesHigh Capacity and Manufacture Price.
  • Extended shooting time with 1650 mAh lithium-ion cells
  • Four batteries in one pack reduce the need for frequent swaps
  • Built-in protection circuit guards against over-charge, over-discharge and over-heating
  • Meets UL1642 and CE safety standards for reliable operation
  • Compatible with a wide range of Sony Alpha and Cyber-shot models

Four-Battery Pack for Sony Mirrorless

This four-pack of Kastar NP-FW50 lithium-ion cells targets photographers who shoot long sessions on Sony mirrorless and compact cameras. Each unit delivers 1650mAh at 7.2V for 11.8Wh of energy. The bundle suits event, travel and video creators who want spare power without carrying a charger.

Drop-In Replacement with Protection Circuits

Installation is a simple battery-door swap; the cells match the NP-FW50 form factor used by Sony BC-VW1 and BC-TRW chargers. Built-in circuitry guards against over-charge, over-discharge, over-voltage, over-current and over-heating. The only common issue is forgetting to cycle new packs once before critical shoots to settle the fuel gauge.

1650mAh per Cell for Extended Sessions

Four cells give roughly quadruple the shooting time of a single stock battery, comfortably covering a full wedding day or multi-hour 4K recording. Runtime drops in cold weather or with continuous AF and LCD use. The pack does not serve cameras that require the larger NP-FZ100 format or proprietary grip batteries beyond the listed VG-C1EM and VG-C2EM models.

Highlights

  • Extended shooting time with 1650 mAh lithium-ion cells
  • Four batteries in one pack reduce the need for frequent swaps
  • Built-in protection circuit guards against over-charge, over-discharge and over-heating
  • Meets UL1642 and CE safety standards for reliable operation
  • Compatible with a wide range of Sony Alpha and Cyber-shot models

Specifications

BrandKastar
ModelNP-FW50
Part NumberBA-4B-FW50-C
TypeBattery
Pack4 Batteries
ChemicalLi-Ion
Capacity11.8 Wh
Dimensions3*2*3 Inch
FeaturesHigh Capacity and Manufacture Price.

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Questions about this item

How do I confirm the 1650mAh batteries are charging correctly in my BC-VW1 charger?

The charger's indicator light will show charging progress and turn solid when each 7.2V cell reaches full capacity.

What comes in the 4-pack and do I need a separate charger for the NP-FW50 cells?

Four 1650mAh lithium-ion batteries are included; a compatible Sony BC-VW1 or BC-TRW charger must be purchased separately.

Which capacity should I choose between the 1650mAh and 11.8Wh ratings for my Alpha 6000?

Both figures describe the same cell — 1650mAh at 7.2V equals 11.8Wh — so a single version covers all listed cameras.

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