Compare Solar
Batteries in Australia
Compare solar batteries by capacity, lifespan, and power output to find the right solution for energy independence, reliable backup, and long-term savings.
Find the Best Solar Battery & Compare Prices
Compare solar batteries to find the best brand and product for you. Our handy comparison tool helps you instantly see prices, specs, features, and more across top-tier brands like Tesla, Sigenergy, Sungrow, GoodWe, and AlphaESS.
Pick the brands you want to compare, then read across the rows for usable capacity, peak power, efficiency, and warranty. Still unsure which battery to get? Ask us for a free quote.
| Product Specifications | |||||||
|---|---|---|---|---|---|---|---|
| Battery Type | LFP (LiFePO₄) — Lithium Iron Phosphate | Lithium LiFePO4 Prismatic Cell | Lithium Iron Phosphate (LFP) | Lithium Iron Phosphate (LFP) | Lithium Iron Phosphate (LFP) | Lithium Iron Phosphate (LFP) | Lithium Iron Phosphate (LFP) – Pouch Cells |
| Usable Capacity | 5 kWh | 20.0 kWh | 5.12 kWh | 5–48 kWh per stack | 13.5kwH | 6.55 | 6.31 kWh |
| Modules | 1 | 4 | 1–6 | N/A (not explicitly defined) | N/A (Integrated system) | 2 | 2 |
| Voltage Range | 100–550 V | 237.6 – 321.2 V | 350 – 550 V | 300–600 V | N/A | 182.4 ~ 230.4 | 185.6–227.2 V |
| Dimensions (HxWxD) | 240 × 620 × 390 mm | 900 × 675 × 350 mm | 326 × 800 × 270 mm | 270 × 767 × 260 mm | 1,099 x 609 x 193 mm | 625 × 600 × 380 mm | 860×780×176 mm |
| Efficiency | N/A | N/A | N/A | 100 % DoD, ~98% round-trip efficiency | high round-trip efficiency 90% | N/A | 95 |
| Peak Power | N/A | N/A | 7.5 kW (10s) | 3.75 kW | 5.8 kW (kilowatts), peak output of 7.6 kW | 5.12 | 6.55 |
| Weight | 49.5 kg | 196 kg | 57.5 kg | 55 kg | 130 kg | 115 kg | 86.6 kg |
| Parallel Operations | 1 battery module (no parallel battery modules) | Up to 4 units | Up to 6x stacks in parallel | N/A | Up to 4 units | N/A | Up to 4 batteries |
| Nominal Power | 5 kW | 14.08 kW | 5 kW | 2.5 kW | 11.04 kW | 5.12 kW | 6.55 – 16.38 kWh |
| Warranty | 10-year product & performance warranty | 10-year Warranty | 10-year warranty | 10-year / 9,000-cycle warranty | 10 years | 10-year product & performance warranty | 10 years (at least 70% usable capacity) |
| Certificates | IEC 62109-1/-2, IEC 62477, IEC 61000-6-1/3, AS/NZS 4777.2 | CE, IEC 62619, IEC 62040, UN 38.3, VDE 2510-50, IEC 62477, IEC 63056CE, CEC, IEC 62619, IEC 62040, UN38.3, VDE 2510-50, IEC62477, IEC63056, IEC61000, UKCA | IEC62619, IEC60730, EN62477, IEC63056, IEC62040; EMC: CE, RCM; Transport: UN38.3 | IEC/EN 60730-1, UN 38.3, IEC/EN 62619, IEC/EN 63056, IEC/EN 62040 | IEC 61000-6-1: 2016, IEC 61000-6-3: 2020, IEC 62477-1: 2022, IEC 62109-1: 2010, IEC 62109-2: 2011, IEC 62933-5-2: 2020, IEC 62619: 2022, UL 1973, UL 9540A, AS 4777.2 | IEC62619, IEC62040, CEC, CE, RCM, UN38.3 | IEC62619:2022 (includes thermal runaway test under 7.3.3), CE; VDE 2510-50, IEC62477-1, UN38.3 |
What to Check Before You Pick a Battery
The best solar battery for your home is the one whose specs fit the way you use electricity, so these four rows deserve a close read.
Round-Trip Efficiency
This figure tells you how much of the energy that goes into the battery comes back out when you use it. A higher figure means less solar is lost in storage, so more of what your roof generates ends up powering your home at night.
Battery Chemistry
Most batteries in the table list lithium iron phosphate (LFP) cells. LFP is a stable chemistry widely used for home storage, and it suits the daily charging and discharging a solar household puts a battery through.
Size and Weight
Weight and dimension figures are important for determining if a battery mounts on a wall or stands on the floor. It also decides which spot at your property, such as the garage or a side wall, can take its weight.
Safety Certificates
The Certificates row lists the standards each battery is tested to. IEC 62619, a safety standard for lithium batteries, appears for most of them. A certified unit has passed independent testing, which is useful evidence before a battery goes on your wall.
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Solar Battery Installation From Volteam
Volteam designs and fits batteries for homes and businesses, matched to your household energy use and the layout of your property. Our solar battery installation in Brisbane adds storage to your existing panels and switchboard, or installs it together with a new solar system.
- Every job is done by licensed electricians, with CEC-accredited installers on the team.
- A site visit comes first, followed by a detailed written quote that sets out the recommended system.
- Your install date is booked to suit you, and afterwards you receive monitoring guidance and performance checks.
- Commercial battery systems are scaled for sites ranging from offices to industrial premises.
The federal Cheaper Home Batteries Program applies to eligible new batteries, so ask us if your chosen system qualifies.
Frequently Asked Questions
What's the difference between total capacity and usable capacity?
Think of total capacity as everything the battery can hold. Usable capacity is the part you can draw on after the battery sets aside a reserve to protect itself. The table lists usable capacity, so compare brands on that figure, because it reflects the energy that actually runs your home.
How long do solar batteries last?
Battery life is counted in charge cycles, each one being the battery filling up and then emptying. A solar household typically runs about one cycle a day. Heat and the installation spot also affect lifespan, so check the cycle figures on each spec sheet before you buy.
Can I add a battery to an existing solar system?
Usually, yes. At the site visit, Volteam checks your existing inverter and switchboard to confirm what the battery can connect to. Some batteries carry their own inverter, the Tesla Powerwall 3 among them, so they can connect alongside existing solar. You can also compare inverters first.
What is peak power output used for?
Peak power output is how much electricity the battery can supply at the same moment. It matters in the evening, when an air conditioner and an oven may run together. A higher figure copes with that combined load more easily, and the table lists peak power for each model.
Are solar batteries expandable?
Many are modular, which means you add battery modules as your needs grow. The Modules and Parallel Operations rows show how far each model scales. Some batteries are single fixed units, so check before buying if you expect to add capacity later.
Is the best home battery the same for every household?
No. It depends on your evening use, your backup needs, how much your roof produces, and your existing inverter. A household out all day uses stored solar differently from one with someone home. That's why a shortlist built around your own usage is more useful than a single pick.
What does a solar battery warranty cover?
Batteries in the table carry 10-year warranties. Some add a cycle limit, and one lists 9,000 cycles. One guarantees at least 70% usable capacity at the end of the term. Read both the time limit and the cycle or capacity conditions for any model you shortlist.
Will a battery keep my power on in a blackout?
Only if the system is set up for backup. Some set-ups back up the whole home, while others cover essential circuits such as lights, the fridge, and internet. Confirm exactly what your quote includes, so you know which appliances stay on when the grid goes down.
Keep Your Solar Working After Dark
Send through your shortlist or a rough picture of your evening power use, and you’ll receive a written quote for a battery that fits your home.
