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Four rectangular lithium-ion batteries and a compact wall charger with foldable flat pins

Kastar

Kastar BP-915G 4-pack batteries with AC wall charger

SKU CH-BSXR-4734V

Four lithium-ion batteries and a foldable-plug AC charger for Phase One IQ, IQ3, IQ4 and P-series digital backs

  • Total capacity25.9 Wh
  • Pack contents1 Charger + 4 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery & Charger
  • Product dimensions3 × 2 × 3 in
  • Key featuresFoldable Flat Plug
  • Four 3500 mAh lithium-ion packs keep Phase One backs shooting longer
  • 9 Wh cells deliver reliable power for IQ, P-series and Riegl bodies
  • AC 100-240 V wall charger works worldwide without a separate adapter
  • Foldable flat plug stores neatly in any camera bag
  • Red-to-green LED shows charge status at a glance

Ready power for Phase One backs

The Kastar BP-915G kit delivers four 7.4 V 3500 mAh lithium-ion cells plus a folding-plug AC charger, giving Phase One IQ, IQ3, IQ4 and P-series digital-back shooters a complete spare-power set for long studio or location days.

Charger limited to 600 mA output

The wall unit accepts 100 to 240 V input but supplies only 4.2 V at 600 mA, so each depleted cell needs several hours to reach the green-light full-charge state; plan charging cycles accordingly.

Simple swap but watch the LED

Batteries drop into the back without tools and the charger shows red while charging and green when ready; the only common slip is leaving a pack on the charger after the green light appears, which adds no extra capacity.

How it compares

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

Price $53.99
Pricier than about 90% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameBP-915G
Part numberNOCAR-4B-BP915G-I
Total capacity25.9 Wh
Product typeBattery & Charger
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 3 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 many batteries are included in this pack?

The pack contains four BP-915G lithium-ion batteries plus one AC wall charger with a foldable flat plug.

What runtime can I expect from a 25.9 Wh battery in a Phase One back?

Each 7.4 V, 3500 mAh cell stores 25.9 Wh; actual shooting time depends on the specific back model and usage pattern.

Will the charger work on 240 V mains overseas?

Yes, the charger accepts AC 100–240 V 50–60 Hz input and delivers DC 4.2 V 600 mA to the batteries.

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