BLUETTI B300K EXPANSION BATTERY
The BLUETTI B300K Expansion Battery is a high-capacity expansion battery designed to increase energy storage for residential solar systems and backup power stations.
Built with next-generation LiFePO₄ technology, it delivers a long cycle life, efficient operation, and seamless compatibility with BLUETTI AC series power stations and Apex systems. It’s ideal for users who want more stored energy for their home, business, or extended off-grid use.
Large Energy Storage Capacity
Designed to integrate with BLUETTI energy systems, the B300K provides additional clean energy storage to keep essential loads running longer.
Compatible with BLUETTI Systems
Easily integrates with BLUETTI power stations that support battery expansion, including AC500, Apex 300, and other compatible inverters.
Advanced LiFePO₄ Technology
Lithium iron phosphate chemistry delivers a much longer lifespan and more charge/discharge cycles than traditional lead-acid or standard lithium batteries.
Scalable to Your Needs
Add one or multiple B300K batteries to increase total system capacity, supporting higher loads or extending runtime during outages or prolonged use.
BLUETTI B300K EXPANSION BATTERY (pair with Apex300)
Starting at $135.30/month with Shop Pay
Check your purchasing power
[Universal Expansion Compatibility]
The B300K connects seamlessly to the Apex 300 through its expansion port, allowing flexible capacity upgrades for any energy scenario.
[Next-Generation Battery Cells]
Equipped with advanced cells delivering at least 6,000 cycles at 80% capacity, extending lifespan by 15% and offering improved performance in high-temperature environments.
[Next-Gen Design Architecture 2.0]
The wireless internal design minimizes failure risks and maximizes space efficiency, resulting in a more compact and portable expansion battery.
[Built-in USB Charging Port]
Functions like a large power bank with a USB port—ready for emergency situations. Connect it to any compatible BLUETTI power station for added versatility.
[What’s Included]
- BLUETTI B300K Expansion Battery
- CA90 battery expansion cable for BLUETTI Apex 300
- User manual
What can it feed?
Refrigerator (120W): 19 hours
Dishwasher (100W): 20 hours
LED lights (10W): 200 hours
Hair dryer (1,600W): 1–2 hours
Electric hammer (800W): 2.3 hours
Air conditioner (1,000W): 2 hours
Air compressor (1,200W): 1.5 hours
Coffee maker or heater (1,000W / 1,200W): 1 hour
Portable & Versatile
Easy to move wherever you need it
No noise or fumes: clean, silent energy
Solar-ready: easy and sustainable recharging
Reliable control: simple and secure monitoring
Why Is It Ideal for Caribbean?
Caribbean experiences frequent power outages and challenging weather conditions, making additional energy storage a major advantage:
- Greater energy autonomy
With one or more B300K batteries connected, you can store more solar energy for nighttime use, cloudy days, or extended outages. - Longer backup duration
Ideal for families, small businesses, or systems that require continuous power without relying on the grid. - Integration with existing solar & backup systems Works seamlessly with other BLUETTI products to build custom energy solutions tailored to your needs.
Secure your uninterrupted energy
Explore our catalog, request a quote, or call us at 340-201-4752.
At ProSolar Caribbean, we help you find the perfect battery for your home, business, or next adventure.