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A compact black charger with four battery slots and three silver lithium-ion batteries beside it

Kastar

Kastar NP-BY1 3-Pack Battery & Quadruple Charger 1100mAh 4.07Wh

SKU CH-GD51-VYPZ0

Three 1100mAh lithium-ion batteries and a quadruple USB charger with Micro-USB and Type-C inputs that can charge four batteries at once

  • Total capacity4.07 Wh
  • Pack contents1 Charger + 3 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
  • Three batteries plus a four-bay charger extend shooting time
  • 1100 mAh cells deliver 4.07 Wh each for reliable power
  • Quadruple USB charger fills four packs simultaneously
  • Micro-USB and USB-C inputs with included Type-C cable
  • Intelligent display shows charge status and remaining capacity

Three batteries and a four-slot charger

This kit bundles three lithium-ion cells with a charger that accepts four batteries at once. Each cell stores 1100mAh at 3.7V, delivering 4.07Wh of energy. The package suits owners of compatible Sony, Pentax, Ricoh and Sanyo cameras who want spare power for long shoots.

Quadruple charger with dual USB inputs

The charger powers up to four batteries simultaneously through either a Micro-USB or Type-C port, and a Type-C cable is included. Intelligent circuitry shows charging status and remaining capacity, while the output adjusts to 800mA for one or two cells and 500mA for three or four. Swappable plates let the same unit handle other battery models.

Compact build with broad compatibility

Measuring 3.5 by 2 by 2.5 inches, the charger fits easily in a gear bag. It works with the listed Sony action cams, Pentax Optio compacts, Ricoh R50 and Sanyo Xacti models. Cameras that use proprietary battery shapes or higher-voltage packs are not supported.

How it compares

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

Price $17.99
Typical for this category: the median of 5,900 items is $17.99.

Specifications

Product
Brand nameKastar
Model nameNP-BY1
Part numberLHD4-3B-BY1-A
Total capacity4.07 Wh
Product typeBattery & Charger
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3.5 × 2 × 2.5 in
In the box
Pack contents1 Charger + 3 Batteries

Other versions of this model

5 more in the same range

Questions about this item

How often will the NP-BY1 Li-Ion cells need replacing under normal use?

The 1100 mAh 3.7 V packs are rated for hundreds of full cycles; expect several years before capacity drops below useful levels.

What limits continuous operation when all four slots are charging?

The 15 W input caps total power, so the charger drops to 500 mA per channel with three or four batteries inserted.

How hot or noisy does the quadruple charger get during an all-day session?

No fan is fitted; the unit runs silently and stays warm but within safe limits thanks to the 5 V 2–3 A input design.

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