SOLAR BATTERY STORAGE SYSTEM
5KWh
Best for small homes & light backup.
$2,999*
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5kWh Solar Battery
Would a 5kWh solar battery be suitable for your home? If you’re a small- to mid-sized family looking to store solar sunshine for nighttime use or emergency power, this compact solution might be just what you need. A 5kWh solar battery keeps up to 5 kilowatt-hours of electricity—typically enough to run vital devices like your fridge, lights, internet router, and maybe a load of laundry after sunset. Across Australia, where solar adoption is rising rapidly, more homes are turning to these smaller-sized batteries for both cost savings and energy independence.
This post will break down everything you need to know about 5kWh solar batteries, how they work, how much they cost, who they’re suitable for, and whether they’re a smart choice for investing in 2025
DISCOVER THE BEST SOLAR BATTERY FOR YOUR SOLAR SYSTEM
5KWh
Solar Battery
Tiny homes, sheds& basic backup
$
2,999
*
Small Home
- Complete Energy Solution
- 24/7 Power Backup
- Seamless Integration
- High-Quality Energy Storage
6KWh
Solar Battery
Just right for most family homes
$
3,199
*
Medium Home
- Complete Energy Solution
- 24/7 Power Backup
- Seamless Integration
- High-Quality Energy Storage
10KWh
Solar Battery
Medium homes and small businesses
$
3,999
*
Big Family Home
- Complete Energy Solution
- 24/7 Power Backup
- Seamless Integration
- High-Quality Energy Storage
How Much Power Do You Actually Get?
A 5kWh solar battery normally offers around 4.6kWh of usable capacity, depending on depth of discharge and system structure. It means you don’t get to use the entire 5 kWh—manufacturers usually set a safety margin to extend battery lifespan.
So what does 4.6kWh get you? Well, roughly speaking:
Run your LED lights and Wi-Fi for an entire evening
Power your fridge for 24–36 hours
Charge your phone and laptop multiple times
Keep your TV and a few fans going for hours
It won’t handle your electric oven, pool pump, or ducted air conditioning, but for basic essentials, it does a solid job.
Ideal Use Cases for a 5kWh Battery
So who’s this battery really for? Here are some practical use cases:
Small households (1–2 people) who use minimal evening power
People working from home, using mostly daytime solar and storing a little for night
Grid-connected homes that want blackout protection or lower power bills
People on time-of-use electricity plans who store solar to avoid high peak tariffs
Budget-conscious solar adopters taking their first step into battery storage
It’s not the battery for large homes, off-grid properties, or people running power-hungry appliances overnight. But for modest needs — it works well.
How Long Does a 5kWh Battery Last?
Most modern lithium-ion solar batteries come with 10-year warranties and claim a lifespan of 6,000+ cycles, depending on usage. If you cycle the battery once a day, that’s over 15 years of use.
However, actual lifespan depends on:
How often it’s charged/discharged
Operating temperature (heat degrades batteries faster)
How deep you discharge the battery regularly
Taking care of your system — like shading it from extreme heat, regular maintenance, and firmware updates — can help it last longer.
How Long Does a 5kWh Battery Last?
Most modern lithium-ion solar batteries come with 10-year warranties and claim a lifespan of 6,000+ cycles, depending on usage. If you cycle the battery once a day, that’s over 15 years of use.
However, actual lifespan depends on:
How often it’s charged/discharged
Operating temperature (heat degrades batteries faster)
How deep you discharge the battery regularly
Most modern lithium-ion solar batteries come with 10-year warranties and claim a lifespan of 6,000+ cycles, depending on usage. If you cycle the battery once a day, that’s over 15 years of use.
However, actual lifespan depends on:
How often it’s charged/discharged
Operating temperature (heat degrades batteries faster)
How deep you discharge the battery regularly
Taking care of your system — like shading it from extreme heat, regular maintenance, and firmware updates — can help it last longer
FAQs About 5kWh Solar Batteries
Q: Can I go off-grid with a 5kWh solar battery?
A: Not really. It’s too small to reliably power an entire home off-grid unless your usage is extremely low and you have backup generation.
Q: Is a 5kWh solar battery enough to run air conditioning?
A: It might run a small split system for a short time, but not for hours. Air cons draw a lot of power.
Q: How long does a 5kWh battery last on one charge?
A: That depends on what you’re using. For basic evening use (lights, fridge, phone charging), it can last 8–12 hours easily.
Q: Can I add more batteries later?
A: Yes, if your system is expandable. Check with your installer or choose a modular brand.
Q: Is it worth it without a rebate?
A: It depends on your goals. If you want blackout protection and to reduce bills modestly, yes. But for big savings, pairing it with time-of-use tariffs or larger systems is better.
WE INSTALL CEC APPROVED POPULAR SOLAR BATTERIES IN AUSTRALIA
- Tesla Powerwall
Great for storing solar energy at home because it is very efficient and lasts a long time.
- Sungrow Battery
Works well and is affordable. It can be used in homes and businesses.
- Sigenergy Battery
A dependable storage option that focuses on being eco-friendly and simple to use.
- SolarEdge Battery
Works best with SolarEdge inverters and gives you excellent monitoring and control.
- Enphase Battery
BYD Battery