High-voltage modular solar battery 10-30 kWh – Indoor and outdoor · BXB 10-30KHV
Modular high-voltage solar battery with capacities from 10 to 30 kWh expandable by connecting 2 to 8 units in parallel. Designed for residential energy storage indoors and outdoors, off-grid installations, microgrid and as a UPS source. IEC61000, IEC62477, IEC62619 and VDE2510 certified.
Overview
Bexie Energy’s BXB 10-30KHV modular high-voltage solar battery is a high-voltage energy storage solution designed for residential and small commercial installations that require flexibility in storage capacity. With capacities of 10 to 30 kWh expandable by connecting 2 to 6 modules in series, the modular high-voltage solar battery adapts to any autonomy requirement.
The BXB 10-30KHV modular high-voltage solar battery is certified for both indoor and outdoor use, making it one of the most versatile solutions in the Bexie catalogue for residential solar storage and off-grid applications.
Technical specifications of the modular high-voltage solar battery
- Type: high-voltage (HV) solar battery
- Capacity per module: 5 kWh (minimum of 2 modules)
- Maximum capacity: 30 kWh (6 modules)
- Configuration: 2 to 6 modules in series
- Use: indoor and outdoor
- Applications: on-grid, off-grid, microgrid, UPS
Advantages of the modular high-voltage solar battery over low voltage
The BXB 10-30KHV modular high-voltage solar battery operates at a higher voltage than conventional LV batteries, which offers significant advantages in higher-power installations:
- Greater efficiency in the charging and discharging cycle — fewer conversion losses
- Lower current intensity — more cost-effective DC wiring
- Greater compatibility with high-power HV hybrid inverters
- Better performance in 5-30 kWh storage installations
- Modular scalability — add capacity without changing the inverter
Applications of the modular high-voltage solar battery
The BXB 10-30KHV modular high-voltage solar battery is suitable for multiple use scenarios:
- Residential self-consumption: stores solar surplus for night-time use
- Off-grid: fully autonomous operation with no grid connection
- Microgrid: energy management in installations with multiple sources
- UPS: uninterruptible power supply during grid outages
- Outdoor use: installation in garages, façades or protected outdoor areas
Modular scalability — adapt the capacity to your needs
One of the main advantages of the BXB modular high-voltage solar battery is its modular design that allows 2 to 6 modules to be connected to increase storage capacity:
- 2 modules – 10 kWh — overnight autonomy for average consumption
- 6 modules – 30 kWh — extended autonomy or use in installations with higher consumption
- Up to 6 modules — maximum capacity for large-scale storage projects
- Subsequent expansion without changing the inverter or modifying the existing installation
Indoor and outdoor use
The BXB 10-30KHV modular high-voltage solar battery is certified for installation both indoors (living room, garage, plant room) and outdoors (façade, shed, industrial installation). Its robust design and thermal management system guarantee safe and efficient operation in both environments.
Certifications and regulatory compliance
- IEC 61000 — electromagnetic compatibility
- IEC 62477 — safety of power conversion systems
- IEC 62619 — safety of lithium batteries for storage
- VDE 2510 — German safety standard for storage batteries
Integration with the Bexie energy system
The BXB 10-30KHV modular high-voltage solar battery is compatible with our high-voltage hybrid inverters and can be combined with solar panels for a complete self-consumption installation with storage. Take a look as well at our complete solar battery solution. For more information on energy storage regulations, visit the Energy Saving Trust.
Frequently asked questions about the modular high-voltage solar battery
Which inverter do I need for this modular high-voltage solar battery?
The BXB 10-30KHV requires a high-voltage (HV) hybrid inverter. It’s compatible with our BE5-10KW-3PH (HV) and BE12-30KW-3PH (HV) hybrid inverters. Contact our technical team for the optimal combination based on your installation.
How many units can I connect in series?
You can connect 2 to 6 units in series, reaching storage capacities of up to 30 kWh. Expansion can be carried out at any time without changing the inverter or modifying the existing installation.
Can it be installed outdoors?
Yes, the BXB 10-30KHV is certified for both indoor and outdoor use. For outdoor installation, we recommend protecting the unit from direct solar radiation and water with a suitable cover or shed.
What’s the difference between HV and LV batteries?
HV (high voltage) batteries operate at a higher voltage, which improves system efficiency and reduces DC wiring losses. They’re more suitable for higher-power installations (5-30 kW inverter). LV batteries are more cost-effective and suitable for lower-power installations.
How long does the modular high-voltage solar battery last?
The LFP (lithium iron phosphate) technology of the BXB guarantees a long lifespan of over 6,000 charge and discharge cycles, equivalent to over 15 years of daily use while maintaining more than 80% of nominal capacity.






