Solar & Battery System FAQ
LiFePO4 Australia now focuses on complete solar and battery energy systems. We help customers choose practical, reliable equipment for homes, businesses, backup power, hybrid systems and larger energy storage projects.
This FAQ explains how the process works, what to expect during installation, how payment and warranty usually work, and how we think about brands such as Deye, Sigenergy, GoodWe, Sungrow, Victron, Pylontech and Dyness.
What does LiFePO4 Australia supply and install?
We design, supply and coordinate complete solar and battery energy systems. That can include solar panels, hybrid inverters, battery storage, backup power circuits, monitoring, system commissioning and practical guidance after installation.
Our focus is now much more on finished systems than individual battery cells. We can still help with cell and component knowledge where it is relevant, but most customers come to us because they want a complete, reliable system that has been thought through properly.
How does the process work from quote to installation?
The process usually starts with a conversation about your power usage, site, budget, backup requirements and what you want the system to achieve. We then look at the practical details: roof or installation space, switchboard, grid connection, existing solar equipment, internet/monitoring requirements and whether backup circuits are needed.
- Step 1: We understand your usage, goals and site requirements.
- Step 2: We recommend a system size and product combination.
- Step 3: We confirm pricing, product availability and installation details.
- Step 4: A deposit secures the equipment and booking.
- Step 5: The system is installed, commissioned, tested and connected to monitoring.
How long does a solar and battery installation take?
Most standard residential installations take 1 to 2 days once the equipment is on site and the job is booked. Larger systems, three-phase sites, switchboard upgrades, backup circuit work, difficult cable runs or commercial systems can take longer.
The overall project timeline also depends on product availability, installer scheduling, grid or DNSP approvals where required, and whether any extra electrical work is discovered during planning or installation.
What deposit is required and when is the balance due?
For most complete systems, we require a 50% deposit upfront. This secures the equipment and allows the installation to be scheduled. The remaining balance is due when the installation is finished.
Some commercial projects, special-order equipment or staged installations may have different payment milestones, but those terms will be made clear in the quote before the job proceeds.
What warranty does a solar and battery system come with?
Warranty depends on the products selected. Solar panels, inverters, batteries, monitoring equipment and workmanship can all have different warranty periods and conditions. We explain the warranty details for the chosen system before purchase, including any manufacturer requirements that must be followed to keep the warranty valid.
The most important thing is not just the headline warranty number. It is whether the product is supported in Australia, whether the supplier can help if something goes wrong, and whether the system is installed and operated within the manufacturer specifications.
Can a battery run my house during a blackout?
Yes, but only if the system is designed with backup capability. A solar battery does not automatically mean the whole house will run during a blackout. Some systems back up selected essential circuits, while others can support larger loads depending on inverter size, battery size, wiring and site requirements.
During system design, we confirm what you want backed up: lights, fridge, internet, water pumps, garage doors, selected power points, or larger loads. That lets us design a system that matches real expectations instead of leaving surprises for the first outage.
How big should my battery be?
The right battery size depends on your daytime solar generation, evening and overnight usage, backup needs, electricity tariff and whether you want room to expand later. A small battery may cover basic evening use, while a larger battery may suit heavy overnight loads, backup power, pool pumps, home businesses, electric vehicles or commercial equipment.
We try to size batteries around useful energy, not just impressive numbers. A well-sized system should feel practical: enough storage to make a difference, without overspending on capacity that will rarely be used.
Brands, Equipment & System Choice
Which inverter and battery brands do you recommend?
There is no single best brand for every site. We look at the job first, then recommend equipment that suits the budget, backup requirements, monitoring needs, available space, expansion plans and installation type.
Brands we may work with or consider include Deye, Sigenergy, GoodWe, Sungrow, Victron, Pylontech and Dyness, along with other suitable platforms depending on the project. The best system is the one that fits the site and can be supported properly over time.
Why do you not simply recommend the cheapest battery system?
Cheap equipment can look attractive at the quote stage, but a battery system needs to work for many years. We care about real-world reliability, monitoring, warranty support, parts availability, installer familiarity and whether the system can be serviced if something goes wrong.
Some products are heavily marketed or very cheap upfront. That does not automatically make them bad, but it does mean we look carefully at support, long-term reliability and whether the product is the right fit for the customer. We would rather recommend a system we can stand behind than chase the cheapest possible headline price.
Do you install Sigenergy systems?
Sigenergy is one of the more modern complete energy storage platforms, with strong integration between inverter, battery modules, monitoring and system control. It can be a good fit where the customer wants a polished, expandable system rather than a collection of unrelated parts.
As with any brand, the right choice depends on the site, budget, backup requirements and desired system size. We assess it against the customer’s actual needs rather than treating any brand as one-size-fits-all.
When is Victron the right choice?
Victron is often a strong choice for off-grid, remote, mobile, marine, backup and technically demanding systems. It is flexible, highly configurable and well supported by experienced installers, but it is not always the cheapest or simplest option for every standard home installation.
If you need a serious off-grid system, generator integration, advanced monitoring or a system that can be built around specific site constraints, Victron is often worth considering.
Can you add a battery to my existing solar system?
Often, yes. The best approach depends on your existing inverter, solar array, switchboard, meter, roof layout and whether you want backup power. Some existing systems suit an AC-coupled battery. Others are better upgraded with a hybrid inverter or a more complete redesign.
We check what is already installed before recommending a path. Sometimes keeping existing equipment makes sense; other times replacing older gear produces a cleaner, more reliable long-term system.
Solar, Backup & Everyday Use
Will solar still work when the grid goes down?
Standard grid-connected solar usually turns off during a blackout for safety. If you want power during outages, the system must be designed with compatible battery backup and appropriate electrical wiring.
With the right system, solar can continue helping charge the battery during an outage. The exact behaviour depends on the inverter, battery, backup wiring and available sunlight.
Can I back up my whole house?
Sometimes, but it needs to be designed carefully. Whole-home backup requires enough inverter capacity, battery capacity and correct wiring. Large loads such as air conditioning, ovens, hot water, pumps and EV chargers can drain a battery quickly or exceed the backup output of some systems.
For many homes, an essential-circuits backup is the best value: fridge, lights, internet, key power points and other important loads. For larger homes or commercial sites, we can look at a bigger backup design if that is the goal.
Will I still receive an electricity bill?
In most grid-connected homes, yes. Solar and batteries can reduce grid usage significantly, but bills can still include daily supply charges, evening usage beyond battery capacity, seasonal variation, cloudy weather, controlled loads or grid import during high-demand periods.
The goal is to design a system that reduces the bill in a practical way and improves energy independence, not to promise impossible results. We prefer realistic expectations backed by sensible system design.
Can I monitor the system from my phone?
Most modern systems include app-based monitoring. You can usually see solar production, battery charge level, household consumption, grid import/export and system status. The exact app and features depend on the inverter and battery platform selected.
Reliable monitoring normally requires internet access at the site. During handover, the system should be connected and checked so you can see what it is doing.
Can the system be expanded later?
Many systems can be expanded, but expansion is much easier when it is planned from the beginning. Battery modules, inverter capacity, switchboard space, solar input limits and product compatibility all matter.
If future expansion is important, tell us early. We can then recommend equipment with a better upgrade path instead of designing only for the minimum requirement today.
Approvals, Installation & Aftercare
Do I need grid approval for a solar or battery system?
Many grid-connected systems require approval or notification through the relevant electricity network. Requirements vary by state, distributor, inverter size, export limits, phase type and whether batteries are included.
Where approvals are required, they should be handled as part of the installation process. We factor these requirements into the planning so the system is not just physically installed, but also suitable for the grid connection rules that apply to your site.
Will my switchboard need upgrading?
Sometimes. Older switchboards, limited space, old protection devices, asbestos panels, poor labelling or backup-circuit requirements can mean extra electrical work is needed. This is not unusual, especially when adding batteries or backup capability to an older home.
We try to identify likely switchboard requirements before installation, but some issues only become clear after inspection. Any major extra work should be explained clearly before proceeding.
What happens after installation?
After installation, the system is commissioned and checked. Monitoring is connected where applicable, backup operation is explained if included, and the customer is shown the basics of how the system works.
Good aftercare matters. A solar and battery system is not just a box on the wall; it is part of your home or business electrical system. We want customers to understand what has been installed and who to contact if something does not look right.
Do batteries need maintenance?
Modern lithium battery systems are generally low maintenance, but they should still be treated as important electrical equipment. Keep the area around the battery clear, avoid blocking ventilation, maintain internet connection for monitoring where possible, and report any unusual warnings or behaviour.
For best long-term performance, systems should be installed in suitable locations and operated within manufacturer temperature, current and usage limits.
Can you help with commercial or larger battery systems?
Yes. Commercial systems can involve different priorities: demand reduction, backup power, tariff management, solar self-consumption, site load profiles, three-phase design, safety requirements and future expansion.
These systems need more careful planning than a simple residential quote. We look at the site, load profile and business priorities before recommending equipment.
Technical & DIY Battery Questions
Do you still sell LiFePO4 cells?
Our main focus is now complete systems, but we still understand LiFePO4 cells, battery quality, BMS selection and the difference between cheap cells and properly supported energy storage products.
For most customers, a complete certified system is the better choice. DIY cells can be useful for experienced builders, but they are not the same as a finished solar battery system with installation, commissioning, monitoring and warranty support.
What is LiFePO4 and why is it used in batteries?
LiFePO4, also called LFP, is lithium iron phosphate battery chemistry. It is widely used in solar and energy storage because it is stable, long-lasting and well suited to repeated charge and discharge cycles.
For customers buying a complete system, the chemistry is only one part of the decision. The inverter, BMS, installation quality, monitoring, warranty support and correct system design are just as important.
Why is a complete battery system different from buying cells?
Cells are only the raw energy storage component. A complete battery system also needs a battery management system, enclosure, protection, communications, inverter compatibility, certification, installation, commissioning and warranty support.
For homes and businesses, the complete system approach is usually safer, cleaner and easier to support. DIY cell builds are a specialist area and should only be attempted by people who understand the electrical and safety risks.
Getting Started
What information should I have ready before asking for a quote?
The more information you can provide, the better the recommendation will be. Useful details include your recent electricity bill, daily usage, whether you have existing solar, whether the site is single-phase or three-phase, your backup power expectations, available installation space and any future plans such as EV charging or system expansion.
If you are unsure, that is fine. We can start with the basics and work through the important details with you.
Why choose LiFePO4 Australia?
We are practical about energy storage. We care about system design, product support, real-world reliability and matching equipment to the job instead of pushing the same answer every time.
Our background in LiFePO4 cells gives us a deeper understanding of what sits inside many battery systems, but our current focus is helping customers get complete solar and battery solutions that are installed properly, monitored clearly and supported over time.
Ready to plan a system? Contact LiFePO4 Australia with your location, current power bill, existing solar details if you have them, and what you want the system to achieve. We will help you work out the sensible next step.
