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Three rectangular lithium-ion camera batteries in a row

Kastar

Kastar NP-FW50 3-Pack 1650mAh 7.2V camera battery

SKU CH-0CRT-KRJHS

Three 1650 mAh 7.2 V lithium-ion packs replace Sony NP-FW50 cells for Alpha and Cyber-shot cameras

  • Total capacity11.8 Wh
  • Pack contents3 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery
  • Product dimensions3 × 2 × 3 in
  • Key featuresHigh Capacity and Manufacture Price.
  • Extended shooting time with 1650mAh 7.2V lithium-ion cells
  • Three-battery pack keeps a spare ready for long sessions
  • Built-in protection guards against over-charge, over-discharge and over-heating
  • Meets UL1642 and CE safety standards for reliable operation
  • Compatible with Sony Alpha and Cyber-shot models including a6000, a7 series and RX10 IV

Three-pack 1650mAh replacement batteries

The Kastar NP-FW50 pack supplies three lithium-ion cells rated at 7.2 volts and 1650 milliampere-hours each. They are built as direct replacements for the Sony NP-FW50 battery used in a wide range of Alpha and Cyber-shot cameras. Photographers who carry a spare for long shoots or travel will appreciate having two back-ups in one purchase.

Sustained shooting performance

Each cell stores 11.8 watt-hours of energy, giving noticeably longer run time per charge than lower-capacity alternatives. The chemistry delivers a steady voltage curve during continuous stills bursts or extended video recording, so the camera maintains full speed without sudden shutdown. Three batteries let you rotate them through a full day of heavy use without waiting for a recharge.

Thermal and safety behaviour

Built-in protection circuits guard against over-charge, over-discharge, over-voltage, over-current and over-heating during normal operation. The cells meet UL1642 and CE safety standards, so they run cool and quiet inside the camera grip or body. No audible noise or excess heat is produced while powering the camera or while charging on compatible Sony BC-VW1 or BC-TRW chargers.

How it compares

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

Price $15.99
Cheaper than about 57% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameNP-FW50
Part numberBA-3B-FW50-C
Total capacity11.8 Wh
Product typeBattery
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 3 in
In the box
Pack contents3 Batteries

Other versions of this model

5 more in the same range

Questions about this item

Does the 7.2 V 1650 mAh lithium-ion cell run hot or draw extra power during long shoots?

The pack includes over-heating and over-current protection circuits that meet UL 1642 and CE standards, so the cell stays within safe thermal limits during extended use.

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

They are designed for the Sony BC-VW1 and BC-TRW chargers, so one of those must be available.

Will the batteries fit my older NEX-6 and newer a6400 without an adapter?

Yes, the NP-FW50 form factor is compatible with both the NEX-6 and the ILCE-6400 Alpha 6400, so they swap directly between the two bodies.

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