We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Four rectangular lithium-ion camera batteries with dark grey plastic casings and gold contacts

Kastar

Kastar NP-FM50/NP-FM55H 4-pack camera battery 7.4V 2300mAh

SKU CH-YKNW-M2JJM

Four lithium-ion batteries at 7.4 V and 2300 mAh replace Sony NP-FM50 and NP-FM55H packs for compatible camcorders and Cyber-shot cameras

  • TypeBattery
  • Pack4 Batteries
  • ChemicalLi-Ion
  • Capacity17 Wh
  • Dimensions3*2*3 Inch
  • FeaturesHigh Capacity and Manufacture Price.
  • Four batteries extend shooting time across multiple sessions
  • 4 V 2300 mAh lithium-ion cells deliver reliable power
  • UL1642 and CE certified with built-in protection circuits
  • Replaces Sony NP-FM50 NP-FM55H and compatible packs
  • Works with listed Sony Handycam Cyber-shot and charger models

Four-pack replacement batteries

This set contains four Kastar lithium-ion cells rated at 7.4 volts and 2300 milliampere-hours. Each unit delivers 17 watt-hours of energy and fits the physical footprint of the original Sony NP-FM50 and NP-FM55H packs. The pack is aimed at owners of compatible Handycam and Cyber-shot models who want spare power for long shoots.

Suits multi-camera owners.

Videographers rotating several camcorders or event photographers carrying backups will appreciate the quadruple supply and the built-in protection against over-charge, over-discharge, over-voltage, over-current and over-heating. Casual owners who only need one spare cell may find a single-unit purchase more economical.

7.4 V 2300 mAh lithium-ion chemistry

The voltage and capacity figures decide whether the cell matches the camera's power budget; mismatched voltage can damage the device while lower capacity shortens recording time. Verify that your model appears in the compatible lists for NP-FM50, NP-FM55H and related charger types before ordering.

Highlights

  • Four batteries extend shooting time across multiple sessions
  • 4 V 2300 mAh lithium-ion cells deliver reliable power
  • UL1642 and CE certified with built-in protection circuits
  • Replaces Sony NP-FM50 NP-FM55H and compatible packs
  • Works with listed Sony Handycam Cyber-shot and charger models

Specifications

BrandKastar
ModelNP-FM50 NP-FM55H
Part NumberBA-4B-FM50-J
TypeBattery
Pack4 Batteries
ChemicalLi-Ion
Capacity17 Wh
Dimensions3*2*3 Inch
FeaturesHigh Capacity and Manufacture Price.

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will the 3×2×3 inch pack fit my Sony DCR-TRV330 handycam battery compartment?

Each cell measures 3 by 2 by 3 inches and replaces Sony NP-FM50 and NP-FM55H packs used in the DCR-TRV330, so it fits the original cavity.

How do I install the four batteries and what step do people skip?

Slide each pack into the camcorder until the latch clicks; the step users miss is charging all four cells fully before first use to calibrate the protection circuit.

When should I replace the Kastar 2300mAh Li-Ion cells?

Replace them when run time drops below half of the original capacity or the camcorder reports a battery error, typically after several hundred charge cycles.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.