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Three rectangular lithium-ion batteries and a compact USB charger with four slots, matte black finish

Kastar

Kastar 3-Pack NP-BY1 Batteries & Quadruple USB Charger

SKU CH-50GK-NK9DT

Three lithium-ion batteries and a USB charger that powers four cells simultaneously for compatible Sony, Pentax, Ricoh and Sanyo cameras

  • TypeBattery & Charger
  • Pack1 Charger + 3 Batteries
  • ChemicalLi-Ion
  • Capacity4.07 Wh
  • Dimensions3.5*2*2.5 Inch
  • FeaturesQuadruple USB charger, can charge 4 batteries at the same ti
  • Charge four batteries simultaneously with the quadruple USB charger
  • Swap plates to charge different battery types on the same unit
  • 1100 mAh lithium-ion cells deliver 4.07 Wh of capacity
  • Micro-USB and USB-C inputs with a Type-C cable included
  • Intelligent display shows real-time charging status and capacity

Compatible Battery Pack

This pack contains three lithium-ion batteries rated at 3.7V and 1100mAh each. They replace the Sony NP-BY1, Pentax D-LI78, Ricoh DB-80 and Sanyo DB-L70 cells. The set suits owners of the listed Sony, Pentax, Ricoh and Sanyo compact cameras who need spare power for extended shooting.

Charging Limits

The quadruple charger accepts 5V input at 2-3A up to 15W through Micro-USB or USB Type-C. It delivers 4.2V at 800mA for one or two batteries and 500mA when three or four are inserted simultaneously. The intelligent display shows charging status and remaining capacity for each slot.

Build And Connectors

The charger measures 3.5 by 2 by 2.5 inches and includes a Type-C cable. Interchangeable plates allow the same unit to handle different battery form factors. Four independent slots let users top up a full set overnight without swapping cells. Buyers needing to charge more than four batteries at once will require an additional charger.

Highlights

  • Charge four batteries simultaneously with the quadruple USB charger
  • Swap plates to charge different battery types on the same unit
  • 1100 mAh lithium-ion cells deliver 4.07 Wh of capacity
  • Micro-USB and USB-C inputs with a Type-C cable included
  • Intelligent display shows real-time charging status and capacity

Specifications

BrandKastar
ModelNP-BY1
Part NumberLHD4-3B-BY1-C
TypeBattery & Charger
Pack1 Charger + 3 Batteries
ChemicalLi-Ion
Capacity4.07 Wh
Dimensions3.5*2*2.5 Inch
FeaturesQuadruple USB charger, can charge 4 batteries at the same time

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Questions about this item

Should I pick the three-battery pack or buy singles for my Sony HDR-AZ1VR?

The three-battery pack gives you 1100 mAh per cell and a charger that handles four at once, so you can keep spares ready without swapping cables.

What does the 1100 mAh rating deliver in my Ricoh R50?

At 3.7 V the cell stores 4.07 Wh, enough for typical action-cam sessions, and the charger shows remaining capacity on its display.

How fast does the USB-C charger actually fill four NP-BY1 cells?

With a 5 V 2-3 A supply the charger outputs 800 mA to one or two cells and 500 mA to three or four simultaneously.

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