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Two rectangular lithium-ion camera batteries side by side

Kastar

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

SKU CH-GWBV-QS65X

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

  • TypeBattery
  • Pack2 Batteries
  • ChemicalLi-Ion
  • Capacity17 Wh
  • Dimensions3*2*2 Inch
  • FeaturesHigh Capacity and Manufacture Price.
  • Two-pack delivers extended shooting time with 2300 mAh capacity
  • 4 V lithium-ion chemistry provides reliable power for compatible Sony cameras
  • Built-in protection circuits guard against over-charge, over-discharge, over-voltage, over-current and over-heating
  • Replaces Sony NP-FM50, NP-FM55H and related battery models across Handycam and Cyber-shot lines
  • Works with Sony BC-VM50, BC-VM10 and BC-V615 chargers for convenient recharging

Two-pack replacement batteries

Kastar supplies two lithium-ion cells rated at 7.4 volts and 2300 milliampere-hours, delivering 17 watt-hours each. They fit a long list of Sony camcorders and Cyber-shot cameras that originally used NP-FM50 or NP-FM55H packs. The pair gives a spare on hand for extended shoots or travel.

Thermal and electrical behaviour

Lithium-ion chemistry runs cool during typical recording and playback, with no audible fan or moving parts. Built-in protection circuits guard against over-charge, over-discharge, over-voltage, over-current and over-heating. The cells meet UL1642 and CE safety standards for reliable operation.

Upgrading from worn originals

Owners of compatible Sony models whose factory batteries no longer hold a useful charge will regain full run-time with this set. The jump is worth it when a single aging pack forces frequent swaps or cuts sessions short. Users needing higher capacity than 2300 milliampere-hours should look elsewhere.

Highlights

  • Two-pack delivers extended shooting time with 2300 mAh capacity
  • 4 V lithium-ion chemistry provides reliable power for compatible Sony cameras
  • Built-in protection circuits guard against over-charge, over-discharge, over-voltage, over-current and over-heating
  • Replaces Sony NP-FM50, NP-FM55H and related battery models across Handycam and Cyber-shot lines
  • Works with Sony BC-VM50, BC-VM10 and BC-V615 chargers for convenient recharging

Specifications

BrandKastar
ModelNP-FM50 NP-FM55H
Part NumberBA-2B-FM50-D
TypeBattery
Pack2 Batteries
ChemicalLi-Ion
Capacity17 Wh
Dimensions3*2*2 Inch
FeaturesHigh Capacity and Manufacture Price.

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Questions about this item

How do I install the Kastar NP-FM50 battery and what step do people often miss?

Slide the battery into the compartment until the latch clicks, then verify the 7.4V label faces outward so the contacts align with the camera terminals.

What maintenance will the 2300mAh Li-Ion pack need later?

Store at roughly half charge in a cool place, recharge every few months to avoid deep discharge, and replace the pack when run time drops noticeably below the rated 17 Wh.

What limit appears first during sustained recording with this 7.4V battery?

The built-in protection circuit will cut power if the cell temperature rises too high or the voltage sags under heavy draw, ending the session before the pack overheats.

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