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Two rectangular lithium-ion camera batteries in dark grey plastic with gold contacts

Kastar

Kastar 2-Pack NP-FM50 / NP-FM55H 7.4V 2300mAh camera battery

SKU CH-Z1RC-YFJG1

Two-pack of 7.4 V 2300 mAh lithium-ion batteries replaces Sony NP-FM50 and NP-FM55H packs for compatible Handycam and Cyber-shot models

  • Total capacity17 Wh
  • Pack contents2 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery
  • Product dimensions3 × 2 × 2 in
  • Key featuresHigh Capacity and Manufacture Price.
  • Longer shooting sessions from 2300 mAh lithium-ion cells
  • Two batteries in one pack for continuous power swapping
  • Built-in protection against over-charge, over-discharge, over-voltage, over-current and over-heating
  • Meets UL1642 and CE safety standards for reliable operation
  • Compatible with Sony NP-FM50, NP-FM55H and many camcorder models

Replacement batteries for Sony camcorders

This two-pack supplies 7.4 V lithium-ion cells rated at 2300 mAh and 17 Wh each. They fit a long list of Sony Handycam and Cyber-shot models that originally used NP-FM50, NP-FM55H or related packs. The cells include built-in protection against over-charge, over-discharge, over-voltage, over-current and over-heating.

Sustained recording performance

The chemistry delivers steady voltage through extended recording sessions rather than fading after a short burst. Over-charge and over-discharge circuits keep each cell balanced during long takes, while the over-heating guard prevents thermal throttling when the camera runs continuously. Cycle life benefits from the same protection logic, so capacity holds up across many charge cycles.

Upgrading from lower-capacity packs

Owners still using the smaller NP-FM30 or NP-QM50 packs gain noticeably longer run time per charge. The jump is worth it when a single battery no longer covers a full event or travel day without swapping. It is not for users whose cameras require a different voltage or form factor.

How it compares

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

Price $13.99
Cheaper than about 65% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameNP-FM50 NP-FM55H
Part numberBA-2B-FM50-C
Total capacity17 Wh
Product typeBattery
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 2 in
In the box
Pack contents2 Batteries

Other versions of this model

5 more in the same range

Questions about this item

Does the 7.4 V 2300 mAh lithium-ion pack run hot or draw extra power during all-day shooting?

The cells include built-in over-heating and over-current protection circuits, so temperature and power draw stay within safe limits during extended use.

Which charger do I already need to own to recharge these NP-FM50 / NP-FM55H packs?

They are compatible with Sony BC-VM50, BC-VM10 and BC-V615 chargers.

Will these batteries work in my older Sony CCD-TRV126 camcorder?

Yes, the pack replaces NP-FM30, NP-FM50, NP-FM55H and fits the CCD-TRV126, CCD-TRV128, CCD-TRV138 and other listed models.

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