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Sumray Battery Price Australia 2026: Specifications and Sizes
The Sumray battery is a modular residential energy storage system designed for the Australian market. It stores surplus solar energy for use after sunset and during periods of low solar production.
In 2026, the Sumray SR-LV14G range offers four capacity options, from 13.92kWh to 55.68kWh.
It also features lithium iron phosphate (LiFePO₄) chemistry, 100% capacity usage, and a 15-year manufacturer warranty.
To know, what is the Sumray battery cost in Australia? Which model suits your home? Read our detailed guide below
Sumray Battery Prices in Australia
Sumray battery cost depends on storage capacity, inverter compatibility, and installation requirements.
The final cost can also change with switchboard upgrades, backup power requirements, and applicable government incentives.
Therefore, compare the entire system installed cost, rather than the price of the battery itself.
Battery Deals provides Sumray battery installation and quotes for homeowners in Sydney and across NSW.
What Factors Affect Installed Cost?
- Size of the battery. Larger batteries will have more storage modules.
- Compatibility and power rating of the hybrid inverter.
- Electrical work, Switchboard upgrades, cabling, and protection equipment can add costs.
- Essential-load backup may require additional equipment and wiring.
- Eligible installations may receive an upfront discount under the applicable battery rebate program.
Check the current eligibility requirements before including any rebate in your budget.
Sumray Battery Capacity and Specifications
The Sumray SR-LV14G uses a stackable design. You can select a configuration based on your household’s energy consumption and expand the system where supported.
Model | Usable capacity | Approx. weight |
SR-LV14G-L1 | 13.92kWh | 120kg |
SR-LV14G-L2 | 27.84kWh | 230kg |
SR-LV14G-L3 | 41.76kWh | 340kg |
SR-LV14G-L4 | 55.68kWh | 450kg |
Key technical specifications include:
Battery chemistry: Lithium iron phosphate (LiFePO₄). | Nominal voltage: 48V. |
Depth of discharge: 100%, according to published specifications. | Cycle life: Engineered for more than 10,000 charge cycles. |
Communication: CAN protocol. | Protection: IP66 rating, module-level circuit breakers and aerosol fire suppression. |
Cooling: Natural convection, without an active cooling fan. | Warranty: 15 years, subject to the manufacturer’s warranty terms. |
The rated and usable energy figures are equal. However, actual energy delivered to household appliances also depends on inverter efficiency, system settings, and operating conditions.
Which Sumray Battery Size Is Right for Your Australian Home?
The right capacity depends on how much electricity you use after sunset and how much surplus solar energy your panels generate.
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These are starting points, not fixed household-size recommendations. Review your smart meter data and solar export history before choosing a battery.
Sumray Battery Installation: Step by Step
Correct installation is essential for safety, performance, and warranty compliance.
First: The installer checks your existing solar system and confirms inverter compatibility.
The SR-LV14G is a 48V battery, so the inverter must support the specified battery voltage, communications, and operating limits.
Second: Assess the proposed location. The L1 weighs approximately 120kg, while the L4 weighs around 450kg. The mounting surface, access, and installation clearances must accommodate the selected configuration.
Final: Completes electrical protection, configuration, commissioning and system testing. Backup operation must be designed and verified separately if you want selected circuits to remain powered during a blackout.
Sumray Battery Price and Value in 2026
The federal Cheaper Home Batteries Program may reduce the upfront cost of an eligible battery installation. The discount depends on usable capacity, current certificate values, and program rules.
Ask your installer to confirm the eligible model, expected discount, and final price in writing. Do not assume every configuration receives the same rebate per kWh.
For more guidance, read Battery Deals’ solar battery sizing guide and existing solar battery installation guide.
Is the Sumray Battery Worth Considering?
The Sumray SR-LV14G offers flexible capacity, LFP battery chemistry, and a 15-year manufacturer’s warranty.
Its 100% stated depth of discharge means the rated and usable energy figures match.
Its IP66 rating and salt-spray-tested construction also support suitable outdoor installations.
However, the battery must be matched with a compatible inverter and correctly sized electrical system. Installation quality, warranty conditions, and total cost matter just as much as storage capacity.
Compare the specifications and request a tailored quote before deciding.
Explore the Sumray battery range at Battery Deals for installation information and pricing enquiries.
Frequently Asked Questions about Sumray Battery
How much does a Sumray battery cost in Australia in 2026?
The price depends on capacity, inverter requirements, installation work and eligible rebates. Contact Battery Deals for a current installed quote.
What Sumray battery sizes are available?
The SR-LV14G comes in 13.92kWh, 27.84kWh, 41.76kWh and 55.68kWh configurations.
How long is the Sumray battery warranty?
The manufacturer’s warranty is 15 years.
Can the Sumray battery be installed outdoors?
Yes, subject to installation requirements. The battery has an IP66 rating and salt-spray-tested construction.
Can I add more Sumray battery capacity later?
The modular design supports expansion, with up to four units operating in parallel under the specified configuration. Confirm compatibility before expanding the system.
Is Sumray eligible for the Australian battery rebate?
Eligibility depends on the approved model, installation requirements, and current program rules. Confirm eligibility with your installer before purchasing.
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