We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Three rectangular lithium-ion camera batteries in a pack

Kastar

Kastar BP-915G 3-pack camera battery 25.9 Wh 7.4 V 3500 mAh

SKU CH-8CT0-SGXY3

Three lithium-ion batteries deliver 25.9 Wh at 7.4 V and 3500 mAh for Phase One and Riegl cameras

  • Total capacity25.9 Wh
  • Pack contents3 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery
  • Product dimensions3 × 2 × 3 in
  • Key featuresHigh Capacity and Manufacture Price.
  • Longer shooting sessions with 3500 mAh high-capacity cells
  • Reliable power at 7.4 V and 25.9 Wh energy rating
  • Built-in protection against over-charge, over-discharge and over-heating
  • Three-battery pack keeps a spare ready for extended use
  • Tested to UL1642 and CE safety standards for peace of mind

Three-pack Li-ion replacement

This three-pack supplies Kastar BP-915G lithium-ion cells rated at 25.9 Wh and 7.4 V with a 3500 mAh capacity. They are built as direct replacements for Phase One XF 70301, IQ, IQ3, IQ4, P25, P30, P40, P45 and P65 series backs plus the Riegl FG21-P. Each cell includes over-charge, over-discharge, over-voltage, over-current and over-heating protection circuits.

Safety certifications and cycle life

The cells meet UL 1642 and CE standards, so the built-in protection circuits guard against the common failure modes that shorten battery life. Longer run time per charge reduces the number of cycles needed during a shoot, which helps preserve overall service life compared with lower-capacity alternatives.

Compatibility check before ordering

Verify that your camera or digital back uses the BP-915G form factor and 7.4 V nominal voltage; the list covers Phase One models from P25 through IQ4 and the Riegl FG21-P only. If your equipment requires a different voltage, connector layout or physical size, these cells will not fit or function correctly.

How it compares

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

Price $40.99
Pricier than about 84% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameBP-915G
Part numberBA-3B-BP915G-I
Total capacity25.9 Wh
Product typeBattery
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 3 in
In the box
Pack contents3 Batteries

Other versions of this model

5 more in the same range

Questions about this item

How many charge cycles can the BP-915G lithium-ion cells deliver before capacity drops?

The supplier states the protection circuit and longer run time improve cycle life, but does not publish a specific cycle-count figure for the BP-915G pack.

Will the 7.4 V 3500 mAh cells hit a thermal limit during continuous shooting on a Phase One IQ4?

The built-in over-heating protection circuit will interrupt output if the pack temperature exceeds its safety threshold during sustained high-drain use.

Do the three BP-915G packs generate noticeable heat when powering a Phase One XF 70301 all day?

Each 25.9 Wh lithium-ion pack runs cool under normal loads; the over-heating protection only activates under extreme sustained current draw.

More in Camera Batteries, Grips & Chargers

Similar items