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Four small lithium-ion batteries and a compact quad USB charger with Micro-USB and Type-C ports

Kastar

Kastar NP-BK1 4-battery pack with quad charger 1200mAh 3.7V

SKU CH-YP5F-MEN0Q

Four lithium-ion 1200 mAh 3.7 V batteries and a quad USB charger that fills all four at once

  • Total capacity4.32 Wh
  • Pack contents1 Charger + 4 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery & Charger
  • Product dimensions3.5 × 2 × 2.5 in
  • Key featuresQuadruple USB charger, can charge 4 batteries at the same ti
  • Quadruple USB charger powers four batteries simultaneously
  • 1200mAh Li-Ion cells deliver 4.32Wh each
  • Micro-USB and Type-C inputs offer flexible charging
  • Intelligent display shows real-time status and capacity
  • Compatible with Sony NP-BK1, NP-FK1 and K-Type cameras

Four-battery kit for Sony K-type cameras

The Kastar NP-BK1 pack supplies four 1200mAh lithium-ion cells and a quad charger that fits Sony Bloggie, Cyber-shot S-series, W-series and Webbie models. It replaces the Sony NP-BK1, NP-FK1 and BC-CSK charger for owners who need spare power on long shoots.

Quad charger with dual USB inputs

The charger accepts Micro-USB or USB-C at 5V 2-3A and shows status for each bay. When one or two batteries are inserted they charge at 800mA; with three or four the rate drops to 500mA per slot. No AC adapter is included, so a suitable 15W USB power source must be provided separately.

4.32 Wh per cell for typical compact-camera use

Each 3.7V battery delivers 4.32 Wh, enough for several hundred stills or moderate video clips on compatible Sony models. Heavy video recording or flash use will drain the cells faster, requiring a swap to a fresh battery from the set.

How it compares

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

Price $22.99
Pricier than about 67% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameNP-BK1
Part numberLHD4-4B-BK1-A
Total capacity4.32 Wh
Product typeBattery & Charger
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3.5 × 2 × 2.5 in
In the box
Pack contents1 Charger + 4 Batteries

Other versions of this model

5 more in the same range

Questions about this item

How can I verify the charger is operating correctly once I plug it in?

The intelligent compact charger displays charging status and battery capacity on its built-in screen.

What items are included and is a power adapter required?

The package contains one charger and four 1200mAh 3.7V Li-Ion batteries; a Type-C cable is supplied but the charger needs a 5V 2-3A USB power source.

Which battery capacity should I choose for my Sony Cyber-shot camera?

Each battery in this pack is rated at 1200mAh (4.32 Wh) and matches the Sony NP-BK1 specification for compatible models.

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