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Two rectangular black lithium-ion camera batteries side by side

Kastar

Kastar NP-FP50/NP-FP51 7.4V 1200mAh 2-Pack camera battery

SKU CH-HJZM-8WT8Q

Two 7.4V 1200mAh Li-ion packs power compatible Sony camcorders with built-in safety circuits

  • Total capacity8.88 Wh
  • Pack contents2 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery
  • Product dimensions3 × 2 × 2 in
  • Key featuresHigh Capacity and Manufacture Price.
  • Two 1200 mAh packs extend shooting sessions
  • 4 V Li-ion chemistry matches original specs
  • Built-in circuit guards against over-charge and over-heat
  • Replaces Sony NP-FP50, NP-FP51 and NP-FP30 series
  • Fits DCR-HC40 through DCR-HC96 and HDR-HC3 camcorders

Two-pack replacement batteries

Kastar supplies two lithium-ion cells rated at 7.4 V and 1200 mAh, matching the NP-FP50 and NP-FP51 form factor. The pack is aimed at owners of compatible Sony camcorders who want a spare set for extended shooting sessions. 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.

Suitable for listed Sony Handycam

This pack fits the extensive range of Sony models listed in the compatibility data, including numerous DCR-HC, DCR-DVD, DCR-SR and HDR-HC units. It also works with the specified NP-FP30, NP-FP50, NP-FP51, NP-FP60, NP-FP70, NP-FP71, NP-FP90 and NP-FP91 battery types. Buyers whose camcorder uses a different battery series or who need a higher capacity than 1200 mAh should look at other options.

1200 mAh capacity at 7.4 V

The single figure that decides fit is the 1200 mAh rating at 7.4 V, giving 8.88 Wh per cell. This capacity determines how long the camcorder can run before a battery change is required. If the application demands more energy per battery, this pack will not meet that need.

How it compares

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

Price $11.99
Cheaper than about 75% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameNP-FP50 / NP-FP51
Part numberBA-2B-FP51-F
Total capacity8.88 Wh
Product typeBattery
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 2 in
In the box
Pack contents2 Batteries

Questions about this item

What voltage does the NP-FP51 battery deliver, and what does that cap in practice?

The 7.4 V lithium-ion cells match the original Sony NP-FP50/NP-FP51 spec, so the camcorder's power-management firmware sees the same voltage ceiling it expects and will not request more current than the 1200 mAh pack can sustain.

What physical space must the camcorder battery compartment provide for the 3 × 2 × 2 inch pack?

Each battery measures three inches long, two inches wide and two inches deep, so the compartment needs at least that much clear volume plus a few millimetres for the latch to engage.

How do I install the replacement battery, and which step do people often miss?

Slide the pack into the camcorder until the locking tab clicks, then charge fully on a Sony BC-TRP, BC-VH1 or AC-VQH10 charger before first use — skipping that initial full charge is the step most users forget.

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