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Four rectangular lithium-ion batteries and a compact dual-slot USB charger with LCD display

Kastar

Kastar BP-915G 4-pack battery & LTD2 USB charger for Phase One P25 P25+ P30 P30+

SKU CH-9XXM-49R7A

Four 7.4 V 3500 mAh Li-ion batteries and a dual-bay USB charger with LCD status display for Phase One P25 P25+ P30 P30+ backs

  • TypeBattery & Charger
  • Pack1 Charger + 4 Batteries
  • ChemicalLi-Ion
  • Capacity25.9 Wh
  • Dimensions5*3*3 Inch
  • FeaturesLCD USB Dual charger, can charge 2 batteries at the same tim
  • Four batteries keep Phase One backs shooting longer
  • 3500 mAh cells deliver 25.9 Wh each for extended sessions
  • Dual-slot USB charger powers two packs at once
  • Micro-USB and Type-C inputs let you charge from many sources
  • LCD screen shows real-time capacity and charging status

Four-battery kit for Phase One backs

The Kastar BP-915G set includes four lithium-ion batteries and an LTD2 dual charger, built for Phase One P25, P25+, P30, P30+, P40, P40+ and compatible IQ-series digital backs. Each cell delivers 7.4 V and 3500 mAh for 25.9 Wh capacity, giving shooters a full day of reserve power in the field.

Dual-slot charger with USB-C and Micro-USB

The LTD2 unit accepts 5 V at 2–3 A through either Micro-USB or Type-C inputs and can charge two batteries simultaneously at 4.2 V, 800 mA per slot. An LCD panel shows real-time capacity and status, while interchangeable plates let the same charger serve other battery types without extra cables.

25.9 Wh per cell for extended sessions

Four packs at 3500 mAh each provide enough headroom for long studio or location shoots without swapping cells mid-session. The 800 mA charge rate means a depleted pair reaches full capacity in a few hours, so overnight charging readies the kit for the next day. Not suited for systems requiring higher-voltage packs or faster charge cycles.

Highlights

  • Four batteries keep Phase One backs shooting longer
  • 3500 mAh cells deliver 25.9 Wh each for extended sessions
  • Dual-slot USB charger powers two packs at once
  • Micro-USB and Type-C inputs let you charge from many sources
  • LCD screen shows real-time capacity and charging status

Specifications

BrandKastar
ModelBP-915 BP-915G
Part NumberCH-LTD2-4B-BP915G-J
TypeBattery & Charger
Pack1 Charger + 4 Batteries
ChemicalLi-Ion
Capacity25.9 Wh
Dimensions5*3*3 Inch
FeaturesLCD USB Dual charger, can charge 2 batteries at the same time

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Questions about this item

How many batteries can the LTD2 charger handle simultaneously during extended shooting sessions?

The LTD2 charger powers two BP-915G batteries at once, each rated at 7.4 V and 3500 mAh for 25.9 Wh capacity.

Does the charger generate noticeable heat or fan noise when running continuously from a 5 V 2–3 A USB source?

The compact charger draws up to 15 W from Micro-USB or Type-C and delivers 4.2 V at 800 mA per slot with no moving parts.

Which cable and power adapter must I already have to operate the charger out of the box?

A Micro-USB cable is included; you need any 5 V USB supply capable of 2–3 A via Micro-USB or Type-C.

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