VoltX™ Neovolt Easy-Upgrade Solar Battery System
Upgrade your energy storage without changing your solar inverter. The VoltX™ Neovolt Easy-Upgrade (Retrofit) Solar Battery System integrates directly with your existing setup via AC connection — no inverter swap or complex rewiring required.
NEOVOLT AC-COUPLE BATTERY CAPACITY
SYSTEM CONFIGURATION
5 kW Single-Phase Inverter | Separate modules
Best for smaller homes with essential daily energy needs.
5 kW Single-Phase Inverter | Separate modules
Best for homes with moderate daily energy usage and longer evening power needs.
5 kW Single-Phase Inverter | Separate modules
Best for larger households requiring increased energy storage and extended backup support.
5 kW Single-Phase Inverter | Separate modules
Best for high-demand homes seeking maximum energy storage and greater energy independence.
Price locked when you reserve for only $249
Not ready to purchase yet? Get a quote.
WHY VOLTX™ NEOVOLt EASY-UPGRADE SOLAR BATTERY SYSTEM
A Solar Energy Battery Built for Australian Homes
VoltX Energy's VoltX™ Neovolt Solar Battery System has become one of the most trusted home battery systems on the Australian market, and the results speak for themselves. Available in single-phase and three-phase configurations, this popular battery pairs a built-in hybrid inverter with 9.6 kWh of base storage capacity that can easily be expanded as your household grows. It delivers up to 98.4% max efficiency and an impressive 10,000 life cycles, ensuring an expected 20 years of dependable performance.
Compatible with existing solar setups and fully manageable through the VoltX™ Neovolt App, it is easy to see why customer reviews consistently highlight the same strengths: straightforward installation, real bill savings, and a system genuinely engineered for everyday Australian life. Backed by a 10-year warranty and available through CEC-approved retailers, the VoltX™ Neovolt Solar Battery System is the smartest way to take control of your home's energy future today.
01
Retrofit without rewiring
Keep your existing solar inverter. The VoltX™ Neovolt connects to your switchboard, not your solar — install is faster, less disruptive, and doesn't void your existing solar warranty.
02
Same premium chemistry
Identical LiFePO₄ cells and BMS as the Hybrid range. The only difference is how it connects.
03
Wall-mounted modular
Stacks vertically against any compatible wall. Add 4.8 kWh modules over time as your needs grow.
Compare the range
Which VoltX™ Neovolt is Right for You?
The decision comes down to your personal energy goals. A larger capacity doesn't change how the system performs; it just scales up your power, giving you more nights of absolute freedom from the grid.
| Capacity & Inverter | Best for | Footprint | Battery Mode* | |
|---|---|---|---|---|
| 19 kWh + 5 kW | Smaller existing solar homes | Stacked + AC unit (2 modules) | 0.5–1 | |
| 28 kWh + 5 kW | Mid-size existing solar homes | Stacked + AC unit (3 modules) | 1.5–2 | |
| 38 kWh + 5 kW | Larger existing solar homes | Stacked + AC unit (4 modules) | 2.5–3 | |
| 48 kWh + 5 kW | Maximum capacity for existing solar homes | Stacked + AC unit (5 modules) | 4+ | |
| 50 kWh + 12 kW | Maximum three-phase capacity | 2 towers | 4+ |
*Battery Mode is an estimate based on a typical 20 kWh/day Australian household with solar panels recharging the system during daylight hours. Individual results will vary based on weather and appliance usage.
THE VOLTX ENERGY PROMISE
What Is the
$249 Deposit For?
Your deposit at VoltX Energy secures your battery hardware, reserves your priority installation slot, and locks in your current government rebate price. This ensures everything is ready for your home while protecting you against stock delays or price increases.
If your circumstances change, the price fluctuates, or we find that a safe installation isn't possible for your home, your $249 is fully refundable — no questions asked.
VoltX™ Neovolt Retrofit Solar Battery System (AC-Coupled) 28 kWh + 5 kW Specs
| Usable capacity | 28.8 kWh (100% depth of discharge) |
| Battery chemistry | Lithium Iron Phosphate (LiFePO₄) |
| Life Cycles | 10,000 |
| Inverter | 5kW Neovolt (AC-couple) Inverter |
| Operating temperature | −20 °C to 55 °C |
| IP rating | IP65 rating |
| Origin | Designed and manufactured in China |
| Footprint | Stacked (3 modules) · 600 mm wide × 180 mm deep, modular stack |
| Battery modules | 3 x 9.6 kWh modules |
| Communication | Wi-Fi, Bluetooth, 4G fallback |
| App monitoring | Neovolt App (IOS & Android) |
| VPP compatibility | Yes — opt-in after install |
| Warranty | 10 years (battery + inverter) |
| Certifications | CEC approved, VDE certified, IEC 62619, AS/NZS 5139 |
Smooth Installation from Start to Finish
The installation was smooth and on time, with friendly installers, clear communication, and a neat setup that's working perfectly.
Victoria, NSW
Great Long-Term Value
VoltX Energy delivered a meticulously installed, high-performing system that offers excellent value and strong long-term savings.
Stjepany, NSW
Excellent Performance
Great experience with VoltX Energy — quick, tidy installation and a system performing at 100% within days.
Phil, SA
Frequently Asked Questions
Most Australian households are well suited to a 25–30 kWh system — typically enough to cover overnight usage using solar energy generated during the day. Use our “Help Me Choose” tool above for a quick recommendation, or speak with a specialist during your welcome call after reserving. We can provide a more accuraterecommendation using your latest electricity bill.
Yes. Every advertised price includes the battery, hybrid inverter, standard installation by an SAA-accredited installer, app setup, and the federal Cheaper Home Batteries rebate already applied.
Additional site-specific work — such as switchboard upgrades, concrete slabs, or difficult access requirements — may incur extra charges, but these are quoted separately and only proceed with your approval.
Yes — fully refundable to your original payment method within five business days. If you change your mind before installation, your property does not pass assessment, or required site photos are not submitted within the seven-day window, your full deposit will be returned.
No restocking fees, no admin fees, and no “store credit only” conditions. Fully compliant with Australian Consumer Law.
The median timeframe from deposit to installation is approximately 30 days. Your installation date is scheduled once your property passes compliance review, which usually occurs within a week of receiving your site photos. We’ll work with you to arrange a suitable installation date.
Every system includes:
- 10-year battery warranty
- 10-year inverter warranty
- 60-day post-install satisfaction guarantee
All warranties are supported directly by VoltX Energy, so you deal with us directly — not the manufacturer.
Yes. The federal Cheaper Home Batteries rebate requires an existing or connected solar system.
If you do not currently have solar, mention it during your welcome call. We work with installation partners who can install both solar and battery systems together, often reducing additional labour and installation costs.
Most Australian homes use single-phase power, which is what the VoltX™ Neovolt Retrofit Solar Battery System (AC-Coupled) is designed for. Larger homes may use three-phase power — typically identified by three main switches in the switchboard.
If you are unsure, reserve the VoltX™ Neovolt Retrofit Solar Battery System (AC-Coupled) anyway. Your welcome call will confirm compatibility, and we can adjust your system recommendation if needed.
The Cheaper Home Batteries Program (effective 1 May 2026) provides an upfront, tiered rebate based on battery capacity:
- Approximately $252 per kWh for the first 14 kWh
- Approximately $151 per kWh for the next 14 kWh
- Approximately $38 per kWh for capacity between 28–50 kWh
We apply the rebate directly to your quoted price, so there is no paperwork to complete and no waiting for a tax-time refund.
