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Rectangular black lithium-ion camera battery with gold contacts

Kastar

Kastar NP-FW50 1650mAh Li-Ion Camera Battery 1-Pack

SKU CH-HY4X-3GV1E

Replacement lithium-ion battery delivers 1650 mAh at 7.2 V for Sony Alpha and Cyber-shot cameras, with built-in protection circuits and UL1642 safety certification

  • Total capacity11.8 Wh
  • Pack contents1 Battery
  • Battery chemistryLi-Ion
  • Product typeBattery
  • Product dimensions3 × 2 × 1 in
  • Key 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 and overheating
  • Meets UL 1642 and CE safety standards
  • Replaces Sony NP-FW50 across a wide range of Alpha and Cyber-shot models

Replacement Battery for Sony Cameras

The Kastar NP-FW50 is a lithium-ion cell rated at 7.2 volts and 1650 milliampere-hours. It fits a wide range of Sony mirrorless and compact models from the Alpha 3000 to the Cyber-shot RX10 IV. The pack supplies 11.8 watt-hours of energy in a single unit.

Built-In Safety Protections

Integrated circuits guard against over-charge, over-discharge, over-voltage, over-current and over-heating. The cells comply with UL 1642 and CE safety standards. These features aim to extend the usable cycle life of the battery compared with unprotected alternatives.

Capacity and Practical Limits

At 1650 milliampere-hours the cell delivers a full day of occasional stills or several hours of continuous video on compatible bodies. It will not match the endurance of higher-capacity NP-FZ100 packs used in newer Alpha 7 and Alpha 9 series cameras. Photographers needing all-day video without swapping cells should plan for spares.

How it compares

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

Price $7.99
Cheaper than about 90% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameNP-FW50
Part numberBA-1B-FW50-C
Total capacity11.8 Wh
Product typeBattery
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 1 in
In the box
Pack contents1 Battery

Other versions of this model

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Questions about this item

When will the 1650mAh NP-FW50 cell need replacing?

Lithium-ion packs lose capacity over hundreds of charge cycles; expect shorter run-times after 300 to 500 full cycles, at which point a new NP-FW50 restores original 11.8 Wh performance.

What limits continuous shooting on the Alpha 6000 with this battery?

The 1650mAh capacity sets the total energy budget; sustained bursts drain the 7.2 V cell until voltage drops below the camera cutoff, ending the session.

Does the NP-FW50 get hot during all-day video on the RX10 IV?

Built-in over-heating protection stops charging or discharging if temperature exceeds safe limits, so the pack stays within normal operating warmth during extended recording.

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