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Two rectangular grey lithium-ion camera batteries side by side

Kastar

Kastar NP-FM50/NP-FM55H 2-Pack Li-Ion Camera Battery 7.4V 2300mAh

SKU CH-007Z-VYXP0

Two 7.4 V 2300 mAh lithium-ion packs replace Sony NP-FM50 and NP-FM55H batteries in 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 2300mAh capacity each
  • Built-in protection circuits guard against over-charge, over-discharge and over-heating
  • Compatible with many Sony Handycam and Cyber-shot models including DCR-TRV14 through DCR-TRV35
  • Lithium-ion chemistry provides 7.4V output and 17Wh energy per battery
  • Replaces original NP-FM50 and NP-FM55H packs for direct fit

Two-Pack Li-Ion Replacement Batteries

This twin pack supplies two lithium-ion cells rated at 7.4 V and 2300 mAh each. They are built to replace Sony NP-FM50 and NP-FM55H packs in a long list of Handycam, Cyber-shot and DCR models. The pair gives a spare for extended shooting sessions without changing chargers.

Practical Limits of the NP-FM Interface

The NP-FM form factor locks the physical size and the 7.4 V nominal voltage, so capacity cannot exceed the 2300 mAh rating without changing the battery shape. The bundled protection circuit stops over-charge, over-discharge, over-voltage, over-current and over-heating, but it also caps the peak current to the level the original camera expects. Runtime therefore scales linearly with the 17 Wh rating and cannot be stretched by firmware updates.

Upgrade from Lower-Capacity Packs

Owners using older NP-FM30, NP-QM50 or NP-QM51 packs gain a measurable runtime increase because those cells store less energy in the same footprint. The jump is worth it when a single charge no longer covers a full event or when the original pack no longer holds a charge after years of cycling. Buyers who need more capacity than 2300 mAh must move to a larger battery form factor that the camera body does not accept.

Highlights

  • Two-pack delivers extended shooting time with 2300mAh capacity each
  • Built-in protection circuits guard against over-charge, over-discharge and over-heating
  • Compatible with many Sony Handycam and Cyber-shot models including DCR-TRV14 through DCR-TRV35
  • Lithium-ion chemistry provides 7.4V output and 17Wh energy per battery
  • Replaces original NP-FM50 and NP-FM55H packs for direct fit

Specifications

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

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Questions about this item

Should I choose the NP-FM50 or NP-FM55H version for my Sony camcorder?

This pack contains two batteries compatible with both NP-FM50 and NP-FM55H models, so you do not need to pick between them.

What does the 2300mAh rating mean for recording time on a DCR-TRV14?

At 7.4V and 2300mAh each battery stores 17 Wh, giving extended run time compared with lower-capacity packs.

Does the 7.4V output match the original Sony NP-FM50 specification?

Yes, the 7.4V lithium-ion cells match the voltage of the Sony NP-FM50 and NP-FM55H batteries they replace.

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