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
Rectangular lithium-ion camera battery, dark grey plastic casing with gold contacts, 70.74 by 38.03 by 21.02 mm

Cameron Sino FG21-P 70301 2200mAh 16.28Wh camera battery

SKU CH-XGTM-TECX1

Replacement lithium-ion battery for Phase One IQ, IQ3, IQ4 and P-series medium-format cameras, 2200 mAh capacity with fully decoded chip

  • Total capacity2,200 mAh / 16.28 Wh
  • Pack contents70.74 × 38.03 × 21.02
  • Replacement for Phase One IQ, IQ3, IQ4, P25, P30, P40, P45, P65, XF cameras
  • 2200mAh capacity delivers 16.28Wh of reliable shooting power
  • Fully decoded chip matches original battery communication exactly
  • 74 x 38.03 x 21.02mm form factor fits designated battery compartments
  • ISO9001, RoHS and CE certified for safety and quality assurance

Drop-in replacement for Phase One backs

This Cameron Sino FG21-P battery matches the 70301 part number and fits the IQ, IQ3, IQ4, P25, P25+, P30, P30+, P40, P40+, P45, P45+, P65 and XF camera systems. It delivers 2200mAh at 7.4V for 16.28Wh of capacity in a lithium-ion cell. The fully decoded chip communicates with the camera exactly like the original pack. Builders who need a different form factor or higher watt-hour rating should look elsewhere.

Steady output during long studio sessions

The pack is tested to ISO9001, RoHS and CE standards and includes overcharge, over-discharge, over-voltage and short-circuit protection circuits. These safeguards keep voltage stable across repeated full cycles rather than only during short bursts. A new unit reaches its best performance after two or three complete charge and discharge cycles. Photographers who rely on continuous video recording or tethered shooting for many hours will benefit from the consistent delivery.

Direct upgrade from an ageing original pack

When the factory battery no longer holds a full day of shots, this 102.0g replacement restores the rated 16.28Wh without modifying the camera. Dimensions are 70.74 x 38.03 x 21.02mm so it seats in the existing compartment. The jump is worth it when the old cell shows reduced run-time or the fuel gauge becomes unreliable. Users who need hot-swap capability with a second charger should plan for an additional charger purchase.

How it compares

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

Price $15.99
Cheaper than about 57% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameCameron Sino
Model nameFG21P, FG21-P
Part number70301
Total capacity2,200 mAh / 16.28 Wh
In the box
Pack contents70.74 × 38.03 × 21.02

Questions about this item

Does the 7.4 V lithium-ion cell run hot during long studio sessions?

The battery is rated at 7.4 V and 16.28 Wh with built-in over-voltage and short-circuit protection, so it stays within safe thermal limits during extended use.

Which charger do I need to pair with the FG21-P pack?

Use the original Phase One charger or a compatible 7.4 V Li-ion charger; avoid low-quality third-party adapters to protect the decoded chip and cell life.

Will this 70301 replacement fit my older Phase One P25 back without modification?

Yes, the 70.74 × 38.03 × 21.02 mm dimensions and fully decoded chip match the original 70301 spec for P25, P30, P40, P45 and P65 series backs.

More in Camera Batteries, Grips & Chargers

Similar items