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Two rectangular silver camera batteries with gold contacts

Kastar

Kastar NP-FW50 2-pack 1650mAh camera battery

SKU CH-QB8J-7ZKE2

Two 7.2V 1650mAh lithium-ion packs with 11.8 Wh capacity and UL1642 & CE safety circuitry for Sony NP-FW50 cameras

  • TypeBattery
  • Pack2 Batteries
  • ChemicalLi-Ion
  • Capacity11.8 Wh
  • Dimensions3*2*2 Inch
  • FeaturesHigh Capacity and Manufacture Price.
  • Longer shooting sessions with 1650 mAh capacity
  • Reliable 7.2 V lithium-ion power for compatible Sony cameras
  • Built-in protection against over-charge, over-discharge, over-voltage, over-current and over-heating
  • Meets UL 1642 and CE safety standards for safe use
  • Two-battery pack keeps a spare ready for extended outings

Two-pack NP-FW50 replacement for Sony mirrorless

This two-pack supplies 7.2 V lithium-ion cells rated at 1650 mAh and 11.8 Wh each, matching the original NP-FW50 form factor. It targets photographers using Sony Alpha and Cyber-shot bodies that accept the W-series battery.

Drops into existing chargers and grips

The cells work with Sony BC-VW1 and BC-TRW chargers as well as VG-C1EM and VG-C2EM vertical grips, so no new charging hardware is required. Swapping a depleted unit for the spare keeps the camera running without tethering to a wall outlet.

Built-in protection limits heat and voltage stress

Each battery includes over-charge, over-discharge, over-voltage, over-current and over-heating circuits certified to UL 1642 and CE. In normal shooting the protection keeps cell temperature and current draw within safe limits, reducing the risk of sudden shutdown.

Highlights

  • Longer shooting sessions with 1650 mAh capacity
  • Reliable 7.2 V lithium-ion power for compatible Sony cameras
  • Built-in protection against over-charge, over-discharge, over-voltage, over-current and over-heating
  • Meets UL 1642 and CE safety standards for safe use
  • Two-battery pack keeps a spare ready for extended outings

Specifications

BrandKastar
ModelNP-FW50
Part NumberBA-2B-FW50-D
TypeBattery
Pack2 Batteries
ChemicalLi-Ion
Capacity11.8 Wh
Dimensions3*2*2 Inch
FeaturesHigh Capacity and Manufacture Price.

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Questions about this item

How long will the 1650mAh capacity last under continuous video recording?

Each pack supplies 11.8 Wh at 7.2 V, giving roughly one hour of typical 4K recording per battery before the voltage drops below the camera's operating threshold.

Do these batteries run hot or make noise during all-day shooting?

Li-ion cells are silent and produce only mild warmth; the built-in over-heating protection circuit will shut the pack down if internal temperature exceeds safe limits.

Which charger do I already need to own to recharge these NP-FW50 packs?

They are compatible with Sony BC-VW1 and BC-TRW chargers, so one of those models must be available for recharging.

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