Residential HV Enerstack Battery
FNS Power HV Battery Only Storage System
FNS Power HV Enerstack Battery is a stackable high-voltage LFP storage platform for whole-home backup and off-grid residential projects. Document-confirmed positioning includes 5.12 kWh module increments, up to 614.4V per stack, up to 36.8 kW output capability, and a clean wireless-connection concept. Confirm cycle life, warranty terms, certification package, IP rating, and inverter compatibility before quote.
Stackable high voltage home battery for whole-home backup
The FNS Power HV Battery Only Storage System is built for buyers who need more than a basic low-voltage backup pack. The Residential HV Enerstack Battery uses safe LFP chemistry, modular 5.12 kWh battery sections, and a clean battery-only architecture that can pair with compatible hybrid inverters for backup, self-consumption, and off-grid solar storage.
Scalable capacity
Configure from 5.12 kWh to 30 kWh as project loads grow, without forcing every buyer into the same battery size.
Wireless setup
Wireless connection and simplified commissioning help installers reduce setup complexity on residential energy storage projects.
High output backup
Up to 36.8 kW output supports demanding backup scenarios where a stackable home battery backup system is required.
- Residential HV Enerstack Battery
- High voltage home battery
- Stackable home battery backup
- LFP home storage
- Whole-home backup
- Off-grid solar storage
Technical summary for project buyers
This page is written for data-driven residential energy storage buyers, installers, and distributors comparing a high-voltage home battery against low-voltage rack systems.
| Product type | HV Battery Only Storage System based on the FNS Power Residential HV Enerstack Battery platform |
|---|---|
| Chemistry | Safe lithium iron phosphate chemistry for residential and light commercial storage |
| Capacity range | Scalable 5.12 kWh LFP modules, configurable from 5.12 kWh to 30 kWh |
| System voltage | High-voltage platform with up to 614.4V output, depending on final stack configuration |
| Output capability | Up to 36.8 kW output for whole-home backup and off-grid power scenarios |
| Cycle life | Confirm cycle lifespan for long-service residential energy storage |
| Installation | Stackable battery modules with wireless setup and hybrid inverter compatibility |
| Warranty | warranty terms to confirm before quote |
Where the HV battery-only system fits best
Compared with a 48V low-voltage battery bank, the HV Enerstack Battery is positioned for projects that need a compact, scalable, high-voltage platform with stronger whole-home backup potential.
Best-fit applications
- Whole-home backup for residential solar-plus-storage systems.
- Off-grid and hybrid inverter projects that benefit from higher system voltage.
- Installations that need modular expansion from 5.12 kWh up to 30 kWh.
- Backup power designs where high output and clean commissioning matter.
Confirm before ordering
- Hybrid inverter model, voltage window, and communication protocol.
- Target backup loads, peak output, and expected autonomy time.
- Indoor placement, clearance, stack height, and protection requirements.
- Warranty terms, certification package, and local installation standards.
Related energy storage pages
These internal links connect the high-voltage battery-only page to the low-voltage battery bank cluster and the broader Residential and C&I ESS category.
FAQ
Why choose a high-voltage home battery?
A high-voltage battery platform can support efficient hybrid inverter operation and higher-output backup designs when properly matched to the inverter.
How much capacity can it provide?
The HV Enerstack platform uses scalable 5.12 kWh LFP modules and can be configured up to 30 kWh for whole-home backup needs.
Is it only for off-grid systems?
No. It can support off-grid storage, solar self-consumption, and grid-tied whole-home backup when paired with a compatible hybrid inverter.
Plan an HV battery-only storage project
Send your hybrid inverter model, target capacity, backup load list, and installation region. FNS Power can help confirm the right HV Enerstack Battery configuration.
Document-checked product data
Residential HV Enerstack Battery: verified parameters and buyer-ready positioning
| Core configuration | Stackable high-voltage residential LFP battery system with wireless connection. |
|---|---|
| Chemistry / technology | High-voltage LFP stack |
| Nominal voltage | Up to 614.4V in one stack |
| Capacity / energy | 5.12kWh increments; 2-6 modules per stack |
| Power rating | Up to 36.8kW continuous output in one stack |
| Scalability | 2-6 modules in series per stack |
| Cycle life / efficiency / warranty | Cycle life and warranty not provided in this specific DOCX |
| Certifications / standards | Not stated in this DOCX |
| Communications / monitoring | Wireless connection |
| Protection / enclosure | Not stated in this DOCX |
| Primary applications | Whole-home backup, off-grid residential storage |