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Three rectangular batteries and a wall charger with foldable plug

Kastar

Kastar BP-915G 3-Battery Pack with AC Wall Charger for Phase One IQ IQ3 IQ4 P25 P30 P40 P45 P65

SKU CH-1VGW-74QE2

Three 7.4 V 3500 mAh Li-Ion batteries and a 100–240 V AC wall charger with foldable plug for Phase One IQ, IQ3, IQ4 and P-series backs

  • TypeBattery & Charger
  • Pack1 Charger + 3 Batteries
  • ChemicalLi-Ion
  • Capacity25.9 Wh
  • Dimensions3*2*3 Inch
  • FeaturesFoldable Flat Plug
  • Three spare batteries keep Phase One backs shooting longer
  • 3500 mAh lithium-ion cells deliver 25.9 Wh each
  • Foldable flat-pin AC charger fits 100–240 V mains worldwide
  • LED shows red while charging and green when full
  • Charger outputs 4.2 V at 600 mA for safe Li-ion charging

Three-battery kit for Phase One backs

The Kastar BP-915G set delivers three lithium-ion cells and a foldable AC wall charger for Phase One IQ, IQ3, IQ4 and P-series digital backs. Each 7.4 V battery stores 3500 mAh, giving 25.9 Wh of capacity. The kit suits studio and field photographers who need ready spares for long shoots.

Thermals noise and power draw

The wall unit accepts 100 to 240 V AC at 50 to 60 Hz and outputs 4.2 V at 600 mA per channel. Charging runs silently with no fan, and the foldable flat plug keeps the adapter cool during typical use. A red LED shows active charging while green signals standby or full charge.

Charger and indicators simplify workflow

The single charger replenishes all three packs sequentially without extra cables. Its foldable pins reduce bulk in gear bags and protect outlets when packed. Clear LED status lets you confirm charge state at a glance, so you can rotate batteries confidently between captures.

Highlights

  • Three spare batteries keep Phase One backs shooting longer
  • 3500 mAh lithium-ion cells deliver 25.9 Wh each
  • Foldable flat-pin AC charger fits 100–240 V mains worldwide
  • LED shows red while charging and green when full
  • Charger outputs 4.2 V at 600 mA for safe Li-ion charging

Specifications

BrandKastar
ModelBP-915G
Part NumberNOCAR-3B-BP915G-I
TypeBattery & Charger
Pack1 Charger + 3 Batteries
ChemicalLi-Ion
Capacity25.9 Wh
Dimensions3*2*3 Inch
FeaturesFoldable Flat Plug

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Questions about this item

How do I install the BP-915G batteries in my Phase One IQ4, and what step is often missed?

Insert each 7.4 V 3500 mAh battery into the camera's battery compartment until it clicks; the step often missed is fully charging all three 25.9 Wh packs on the AC wall charger before first use.

What maintenance or replacement will the BP-915G pack and charger need over time?

The three lithium-ion batteries will gradually lose capacity after repeated cycles; plan to replace them when runtime drops below your needs, while the foldable-plug AC charger (100–240 V input, 4.2 V 600 mA output) typically lasts longer.

What limit appears first when using the BP-915G charger continuously for multiple batteries?

The charger delivers 4.2 V at 600 mA, so each 3500 mAh battery takes several hours; sequential charging of three packs means the slow per-bay current is the bottleneck during sustained use.

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