Quick answer

For a dedicated flash like the Godox AD400Pro, choose the Godox Li-Ion Battery for AD400Pro Flash Head. For a more versatile power source that can run a camera or accessories, consider a V-Mount battery such as the SmallRig VB99 SE Mini V-Mount Battery, paired with an adapter plate if needed.

Understanding Your Power Needs

The first step is identifying what you're powering. A dedicated flash battery—like the one for the Godox AD400Pro—is designed to match the voltage and connector of that specific flash head, offering seamless integration and reliable runtime. It's a no-fuss solution if you own that flash.

If you need to power a camera body, monitor, or other accessories, a V-Mount or NP-F battery gives you flexibility. V-Mount batteries (e.g., SmallRig VB99 SE) are common in video rigs and can be mounted directly or via a plate. NP-F batteries (e.g., ProMaster USB-C NP-F570) are smaller and often used for on-camera lights or smaller devices.

Capacity vs. Portability Trade-off

Higher capacity batteries (like the 6800mAh SmallRig VB99 SE) run longer but add weight and bulk. They're ideal for all-day shoots or power-hungry setups. Lower capacity batteries (like the 2600mAh ProMaster NP-F570) are lighter and more compact, making them better for travel or quick run-and-gun work.

Consider your typical shooting duration and whether you can swap batteries easily. If you're on a tripod or rig, a larger V-Mount battery is fine. If you're handheld, you might prefer a lighter NP-F option.

Mounting and Compatibility

V-Mount batteries require a V-Mount plate or adapter on your camera rig. The SmallRig L-Series/NP-F Battery Adapter Plate (Advanced Edition) can convert an NP-F mount to accept V-Mount batteries, expanding your options. Check your camera or flash's mounting system before buying.

SmallRig L-Series/NP-F Battery Adapter Plate (Advanced Edition)

SmallRig L-Series/NP-F Battery Adapter Plate (Advanced Edition)

Dedicated flash batteries like the Godox AD400Pro battery slide directly into the flash head—no extra plates needed. This simplicity is a major advantage if you only need to power that one device.

Decision rules for choosing your external battery pack

  • Rule 1: Match the connector: If your device has a dedicated battery slot (like the Godox AD400Pro), buy the matching battery. If it uses a standard mount (V-Mount or NP-F), choose a battery that fits that mount.
  • Rule 2: Choose capacity based on your shoot length: For all-day shoots or power-hungry gear, go with a high-capacity V-Mount battery (e.g., 6800mAh). For short sessions or travel, a smaller NP-F battery (e.g., 2600mAh) is lighter and easier to carry. If you're unsure, a mid-capacity V-Mount battery often provides the best balance.
  • Rule 3: Consider future expandability: A V-Mount battery with an adapter plate can power multiple devices over time. A dedicated flash battery is limited to that one flash model.

Product facts at a glance

  • Godox Li-Ion Battery for AD400Pro Flash Head: Price Guarantee Rent Now This dedicated battery is purpose-built for the AD400Pro flash, ensuring a perfect fit and reliable power without extra adapters.

    Godox Li-Ion Battery for AD400Pro Flash Head

    Godox Li-Ion Battery for AD400Pro Flash Head

  • SmallRig VB99 SE Mini V-Mount Battery (6800mAh): Price Guarantee Rent Now At 6800mAh, this mini V-Mount battery offers high capacity in a compact form, making it a versatile power source for cameras, monitors, and lights.

Who should choose which battery?

Best for

  • Photographers who own a Godox AD400Pro and want a drop-in battery without extra gear
  • Videographers or hybrid shooters who need a versatile power source for cameras, monitors, and lights

Not for

  • Shooters who only need to power a small on-camera light—a smaller NP-F battery is lighter and cheaper