In today’s energy-conscious world, portable power isn’t just a luxury—it’s a necessity. The Oupes B2 Battery stands out as a multifunctional expansion battery designed for Mega 2 and Mega 3 power stations, yet powerful enough to function independently. Whether you’re camping, working on a remote job site, or planning for emergencies, this battery delivers both reliability and adaptability.
A Smart Solution for Modern Off-Grid Needs
The beauty of the Oupes B2 lies in its standalone capability. While it seamlessly expands the capacity of Mega 2 and Mega 3 systems, it also acts as an independent DC power source.
- Compatible with a variety of 12V devices
- Solar input up to 2,100W for independent charging
- Multiple DC outputs including cigarette lighter and barrel ports
With this kind of flexibility, you can separate your AC and DC loads or even use the B2 battery alone without a paired power station.
Designed for Real-World Utility
This isn’t just a battery—it’s a complete power solution tailored for outdoor adventurers and serious DIYers. The front panel hosts an array of user-friendly ports, while the side houses the expansion and solar input terminals.
- Four USB-A ports (18W max each)
- Two USB-C ports (100W max each)
- 12V/30A Anderson output for high-powered DC devices
What makes it even better? Each output is independently switchable, giving users granular control over power consumption.
Compact Form, Massive Capacity
Despite its capabilities, the Oupes B2 doesn’t compromise on portability. At just 41.8 lbs, it’s lighter than many standalone batteries in its class.
- Dimensions: 18″ x 11″ x 10.5″
- Operating temperature: 32°F to 104°F (0°C to 40°C)
- Expandability: Up to 4 B2s for Mega 2 (10,240Wh) and 6 B2s for Mega 3 (15,360Wh)
For DIY enthusiasts and solar tinkerers, these numbers open doors to a whole new level of energy independence.
Seamless Integration, Smart Controls
The B2 battery includes intelligent features for user convenience. From power syncing with the main station to safety-first design, it’s built with practicality in mind.
- Single-button on/off control via connected Mega units
- Independent power control when used solo
- Comes with connection cables, MC4-to-Anderson and 7909-to-Anderson adapters
One design flaw worth noting: the dual-port flap doesn’t close when a cable is plugged in, exposing the unused port. A split cover would better protect against moisture and pests.
The Bottom Line: A DIYer’s Dream Companion
The Oupes B2 Battery is more than just an add-on—it’s a powerhouse. Whether you’re off-grid for days or looking to bolster your emergency power setup, this battery adapts to your lifestyle.
- Expand your Mega 2 or Mega 3 setup effortlessly
- Use it standalone for focused DC applications
- Lightweight, powerful, and user-centric
If you’re serious about solar DIY projects or need a trustworthy battery that evolves with your needs, the B2 is an investment worth every watt.
