SMALLRIG Base Battery CB75 - Slim 73.8Wh Camera Baseplate

Our review of the SMALLRIG Base Battery CB75 finds it aimed squarely at cinematographers and content creators who need a compact, reliable power solution that doubles as a camera baseplate. The biggest reason to buy is its combination of a slim 73.8Wh battery pack with a tool-free mounting system that saves setup time on fast productions while delivering continuous multi-device power through five outputs. For shooters who move between run-and-gun locations and studio days, the CB75 blends mounting convenience with robust charging and real-time monitoring.

Key Features

• Tool-free direct mounting: The top 1/4'-20 screw and bottom 1/4'-20 threaded hole let users attach cameras and tripods without adapters for a streamlined rig.
• Arca-Swiss compatibility: Designed to work with Arca-Swiss quick release plates and compatible cages to enable fast slide-in installation and one-click auto-lock.
• Five-port power hub: Two D-Tap, two 65W USB-C and one DC5521 8V port let you run a camera, monitor, lights and accessories at the same time.
• Fast dual USB-C charging: Dual 65W USB-C inputs recharge the battery in about two hours to reduce downtime between shoots.
• Real-time HD display: A full-color screen shows live charge level and input/output data so operators can manage run time precisely.
• Slim, travel-friendly design: The 3cm (1.2 in) profile and 73.8Wh capacity offer heavy-duty performance while remaining portable for location work.

Who It's For

The CB75 is best for filmmakers, documentary teams, and solo creators who want a compact base battery that mounts beneath a camera or within a cage and powers multiple accessories during all-day shoots. Its balance of capacity and portability makes it useful for travel-friendly setups and run-and-gun environments where space and weight matter.

Those who need extremely long runtimes for multi-day shoots without recharging, or who require mount systems that are not Arca-Swiss compatible, should consider larger V-mount or dedicated battery plates; the CB75 focuses on convenience and versatility rather than the highest possible watt-hour capacity.

Pros & Cons

Pros

• Compact 73.8Wh battery that serves as a functional baseplate and keeps rigs tidy.
• Multiple outputs including 2x D-Tap and dual 65W USB-C let users power a variety of devices simultaneously.
• Fast recharging via dual 65W USB-C cuts downtime to roughly two hours.
• Full-color HD screen provides clear real-time power monitoring for smarter energy use.

Cons

• While high for its size, 73.8Wh may be limiting for prolonged multi-day shoots compared with larger battery systems.
• Compatibility benefits assume Arca-Swiss or SmallRig ecosystems; non-compatible cages or plates may need adapters.

Specifications

Capacity	73.8Wh / 5000mAh
Profile thickness	3cm (1.2 in)
Mounting	Top and bottom 1/4'-20 screws; Arca-Swiss compatible
Output ports	2x D-Tap, 2x 65W USB-C, 1x DC5521 8V
Charging	Dual 65W USB-C fast charging (~2 hours)
Battery cells	Premium LG cells with protection circuit
Display	Full-color HD real-time power monitor

Our Verdict

The SMALLRIG Base Battery CB75 is a smart pick for creators who want a tidy, multifunctional power solution that also serves as a baseplate. It delivers a useful mix of outputs, fast USB-C recharge, and a clear power display in an ultra-slim form, making it good value for on-the-go professionals who prioritize setup speed and multi-device power management.

Frequently Asked Questions

Can the CB75 mount directly to a camera?
Yes, it has a top 1/4'-20 screw for direct attachment to cameras and cages and a bottom 1/4'-20 hole for tripod or gimbal mounting.

How fast does the battery recharge?
Dual 65W USB-C fast charging can recharge the CB75 fully in about two hours under ideal conditions.

What devices can it power simultaneously?
With 2x D-Tap, 2x 65W USB-C and a DC5521 8V port you can power cameras, monitors, LED lights and accessories at the same time.