Solar Battery Installation in Pretoria: Backup Power Done Safely and Properly
Keep the lights, Wi-Fi, fridge, gate and security running when the grid fails — with a battery matched to your inverter, installed safely and signed off with the right paperwork.
Solar battery installation in Pretoria usually costs about R3,500 to R8,500 in labour for a standard setup, on top of the battery itself, and most home installations take one day. What you pay depends on the battery size, whether it works with your existing inverter and where it will be installed. We have spent 10 years installing solar in Pretoria, and the most common mistakes we fix are batteries that do not communicate properly with the inverter, batteries installed in unsafe spots and systems with no paperwork.
Solar Battery Installation at a Glance
Quick answers to the questions Pretoria homeowners ask us most often before we start.
What we install
Lithium (LiFePO4) batteries matched to your hybrid inverter, for homes, estates and businesses.
New or existing systems
A battery with a new inverter, or a battery added to solar you already have.
Typical labour
About R3,500 to R8,500, plus the battery. See the solar battery installation costs page for equipment prices.
Safety
Battery placed away from living areas where possible, with proper protection, isolation and labelling.
Paperwork
Certificate of Compliance, and help with the SSEG amendment where your supplier needs one.
Service area
Pretoria, Pretoria East, Pretoria North, Centurion and nearby suburbs.
Solar Battery Solutions We Install for Pretoria Homes and Businesses
Every property is different, so we start with what you need to keep running, not with a standard package. Here is what we do:
A new battery with a new hybrid system.
The battery, inverter and panels are designed together. See our hybrid solar systems.
A battery for your existing solar.
We check compatibility first, then add storage. Read more about how to add a battery to an existing solar system.
A battery upgrade or replacement.
More capacity, a better battery or a replacement for one that has failed.
Commercial battery backup.
Selected equipment kept running for offices, shops and workshops. See commercial solar installation.
Independent systems.
Batteries for properties that run without the grid. See off-grid solar systems.
Battery Backup for Homes and Estates
For most families, backup means lights, Wi-Fi, TV, a fridge, a freezer and phone charging. Many Pretoria households also want the gate motor, alarm and electric fence to keep working, because an outage affects security as well as comfort. We plan the backup circuits around these priorities. Heavy loads such as stoves, geysers and aircon need much more inverter and battery capacity, so we tell you honestly what to keep on the backup side and what to leave off. If hot water is your priority, a solar geyser installation is often a cheaper way to deal with it than a bigger battery.
Battery Backup for Businesses
Offices, shops, workshops and practices usually need computers, routers, point-of-sale equipment, security and some lighting to keep going. We size the system around your operating hours and what a power cut costs you. For larger needs, see our commercial solar installation page.
How a Solar Battery and Inverter Work Together
A solar battery system is made of three parts that must work as one: the panels, the inverter and the battery. The inverter manages the flow of power. It sends solar energy to your home, stores the surplus in the battery and draws from the battery or the grid when needed. If you want the full explanation, read our guide to how solar batteries work.
What matters for installation is compatibility. Before we quote, we check:
- Communication. Most lithium batteries have a battery management system (BMS) that talks to the inverter, usually over a CAN or RS485 cable. If they do not communicate, the inverter cannot charge the battery to the manufacturer's limits.
- Voltage. Most home batteries are 48V low-voltage units. Some inverters use high-voltage batteries instead. They are not interchangeable.
- Charge and discharge limits. The inverter must not ask more of the battery than it can safely give.
- Coupling type. In an AC-coupled system the battery has its own inverter, and in a DC-coupled system it connects directly to a hybrid inverter. Existing grid-tied systems are often AC-coupled.
If your current inverter does not support the battery you want, we say so, and show you the options. Sometimes the right fix is a new inverter, not a bigger battery.
Which Solar Batteries Do We Install?
We install lithium iron phosphate (LiFePO4) batteries, because they last, tolerate deep discharge and suit South African homes. We supply all the major brands available in South Africa, including Hubble, Pylontech, Freedom Won, Dyness and BYD, along with other models we support locally.
When we choose a battery, we compare:
- Usable capacity in kWh, not just the number on the label
- Inverter compatibility and communication
- Warranty, including cycles and years, and who honours it locally
- Maximum charge and discharge rates
- Installation conditions, such as temperature and space
For the technology, see our guide to the different types of solar batteries. If you are comparing products, our page to compare solar battery options explains how to judge them.
Still unsure which battery suits your inverter? Send us your inverter model and suburb and we will tell you what fits and what does not.
How Much Battery Do You Need?
The right size depends on what you want to run and for how long, not on the size of your house. Two numbers matter: the battery's usable energy (kWh) and the inverter's power output (kW).
A simple example. Say your essential loads are lights, Wi-Fi, a TV, a fridge and a few chargers, which together use about 500 W. A battery with 5 kWh of usable energy would run that load for about 10 hours in theory (5 kWh divided by 0.5 kW). In practice, allow some loss, so plan for a little less. If you add a 2,000 W kettle for a few minutes, the inverter must handle that peak.
This is why a bigger battery alone does not solve everything. For a deeper walkthrough, see our guide to solar battery capacity and backup time, or ask us to run the numbers for your home.
Where Should a Solar Battery Be Installed?
This is one of the most important and most overlooked questions. A lithium battery is safe when it is installed correctly, but a bad location raises the risk if something goes wrong.
Good practice, based on manufacturer guidance and South African fire-safety advice:
- Keep it away from the main living areas where possible. Fire-safety specialists have advised against installing batteries inside the house, in main passages or in garages with valuable items.
- Choose a cool, dry, ventilated spot. Most lithium batteries work best between about 10 and 40 degrees Celsius, so a hot roof space or a closed, sunny cupboard is a poor choice in Pretoria summers.
- Use a non-combustible surface and keep flammable materials clear.
- Leave clearance for ventilation and access, and protect the battery from impact and water.
- Add proper protection: a correctly rated DC breaker or fuse, an isolator, earthing and clear labelling.
- Follow your insurer's and estate's rules. Some insurers and estates have requirements, so ask before you install.
There is no single national rule that fits every home, so we assess your property and tell you the safest practical option. If you are wondering whether you can install a battery yourself, the short answer is that it involves high-current DC wiring, protection and a Certificate of Compliance, and a wrong connection can cause a fire. This is work for a qualified electrician.
Our Solar Battery Installation Process
- 1 Consultation. You tell us what you want to keep running and for how long. Send your latest electricity bill and, if you have solar, the inverter model.
- 2 Site assessment. We check your inverter, DB board, existing solar, available space and the safest location.
- 3 Design and written quote. You get an itemised quote with the battery, capacity, protection, cabling, certificate and warranty listed.
- 4 Approvals and paperwork. If you are connected to the grid, we check whether an amended SSEG application is needed. See our SSEG registration in Pretoria page.
- 5 Installation. We mount the battery, fit the cabling and protection and connect the communication cable to the inverter.
- 6 Commissioning and testing. We configure the inverter, test charging, discharging and the backup changeover, and check the battery's communication.
- 7 Handover. You receive your Certificate of Compliance, equipment details and warranty information, and we show you how to read the app and what to expect in an outage.
Adding a Battery to an Existing Solar System
Many of our enquiries come from people who already have panels and an inverter and now want backup. It is often possible, but it depends on the inverter.
- Hybrid inverter: the battery usually connects directly, if the inverter and battery are compatible.
- Grid-tied inverter with no battery input: we can sometimes add an AC-coupled battery inverter, or replace the inverter with a hybrid one. See grid-tied solar systems.
- Older or budget inverters: some are not certified for grid connection, or cannot talk to modern lithium batteries. We tell you before you spend money.
If your system is registered, adding a battery may need an amended application with the City of Tshwane or Eskom, with an updated single-line diagram and a new Certificate of Compliance. We handle that. Read more about how to add a battery to an existing solar system, and see our solar maintenance and repairs service if your system needs a check first.
What Affects the Cost of Battery Installation in Pretoria?
There are two costs: the battery and the installation. The battery is usually the larger part. For equipment prices, see our solar battery prices page.
For the installation itself, these are typical market ranges, not quotes:
| Job | Typical labour |
|---|---|
| Single 48V wall-mounted battery | about R3,500 to R5,500 |
| Two to four rack-mounted batteries | about R4,500 to R6,500 |
| High-voltage battery system | about R5,000 to R8,500 |
| Adding a battery to an existing system | about R2,000 to R4,000 |
Extras that can add cost: a DB board upgrade (older boards may lack space), longer cable runs, brackets or a stand, a bidirectional meter, and the Certificate of Compliance if it is not already included.
Be careful with a quote that does not itemise these. The cheapest quote often leaves out the certificate, the communication cable or the protection.
Certificates, SSEG and Insurance
A battery changes your electrical installation, so the paperwork matters.
- Certificate of Compliance (CoC). Issued by a registered electrical contractor, and needed for your insurer, your bank and any future buyer. It should be a separate line on your quote.
- SSEG registration. If your system is connected to the grid, it must be registered, and adding a battery to a registered system can require an amendment. We prepare the documents.
- Insurance. Tell your insurer before you install, and keep your certificate, equipment list and warranty details.
- Standards. We use batteries that carry recognised safety certification, and inverters certified for grid connection under NRS 097-2-1.
A Certificate of Compliance can only be issued by a registered electrical contractor. Our installation team includes a registered electrician who signs off the CoC for every battery installation we complete.
Want it installed safely with the right paperwork? Send us a photo of your DB board and inverter and we will confirm what is needed, what it costs and how long it takes.
Solar Battery Installation Across Pretoria
We install across the city and nearby suburbs. Find your area for local details, or see all areas we serve.
Pretoria East
Pretoria East, Menlyn, Garsfontein, Faerie Glen, Moreleta Park and Silver Lakes
Centurion and south
Centurion, Irene and Waterkloof
Central and north
Hatfield, Brooklyn and Arcadia, Montana and Pretoria North and Wonderboom and Akasia
Many estates and complexes have rules about where batteries and inverters can go, so we prepare the documents trustees ask for.
If you are planning a larger project, see our solar system design, solar panel installation and residential solar installation pages.
Why Pretoria Homeowners Choose Us for Battery Installation
- Compatibility first. We check the inverter and communication before we sell you a battery.
- Honest sizing. We tell you what you need and what you do not, even if that means a smaller battery.
- Safe placement. We think about where the battery goes, not only how it connects.
- Itemised quotes with the battery, protection, cabling, certificate and warranty on paper.
- Documents ready for your insurer, your estate and your supplier.
- 10 years of solar experience in Pretoria. Read more about us.
Recent Battery Installations
5kVA hybrid with 10kWh battery
8kVA hybrid with 16kWh battery
Battery added to existing 3kW grid-tied system
Ready to see a system like these in your home? Tell us your suburb and what you want to keep running — we will size it honestly and quote on paper.
What Our Customers Say
"The team checked my existing inverter first before recommending anything, which no other installer did. Clear quote with everything itemised — battery, DB changes, CoC. Installation was neat and the app works perfectly. We've had no load-shedding interruption since."
October 2026
"Estate approval can be a nightmare but they handled the trustee documents for us without being asked. Battery is tucked away in the garage exactly where we wanted it, clean cabling, proper labels. Worth the wait."
September 2026
"I had solar panels but no battery and a grid-tied inverter. They were honest that adding AC-coupled storage was the better option than replacing the inverter, which saved me thousands. CoC and SSEG amendment were handled. Two loadshedding cycles later and my home office hasn't dropped once."
August 2026
Solar Battery Installation FAQs
How much does solar battery installation cost in Pretoria?
Labour for a standard installation is typically about R3,500 to R8,500, plus the battery. Adding a battery to an existing system is often at the lower end. Extras such as a DB board upgrade, longer cabling or the certificate can add to the total. See our solar battery installation costs for equipment prices.
How long will a solar battery last during a power outage?
It depends on the battery's usable energy and what you run. Divide the usable kWh by your load in kW. A 5 kWh battery running a 500 W load lasts roughly 10 hours in theory, less in practice, and far less if you run heavy appliances. Solar generation during the day can extend it. See our guide to solar battery capacity and backup time.
Can I add a battery to my existing solar system?
Often yes, but compatibility decides. A hybrid inverter may accept a battery directly, while a grid-tied system may need an AC-coupled battery inverter or a new inverter. We check first and tell you honestly.
Where should a solar battery be installed?
In a cool, dry, ventilated spot on a non-combustible surface, away from living areas, passages and flammable items where possible, with proper protection and labelling. Avoid hot roof spaces and closed, sunny cupboards. We assess your property to find the safest practical position.
Can I install my own solar battery?
We do not recommend it. Battery installation involves high-current DC wiring, protection devices and communication setup, and a mistake can cause a fire. You also need a Certificate of Compliance from a registered electrical contractor for insurance and resale, and DIY work can void warranties.
Can a solar battery power my whole house?
A suitably sized system can, but most homes back up essential circuits only. High-power appliances such as stoves, geysers and aircon need much more capacity. We help you decide what to put on the backup side.
What is the difference between a solar battery and an inverter?
The battery stores energy. The inverter converts and manages power between your panels, battery, grid and home. A hybrid inverter does both jobs of managing the battery and the solar. They must be compatible for the system to work properly.
Will my battery charge during an outage?
It can charge from your solar panels during an outage if your system is designed for backup operation. A grid-tied system without a suitable inverter shuts down during outages for safety, so ask for a hybrid or backup-capable setup.
Do I need to register my battery system?
If your system connects to the grid, it must be registered with your supplier, which is the City of Tshwane for most of Pretoria. Adding a battery to a registered system can need an amended application. See our SSEG registration in Pretoria page.
Do solar batteries need maintenance?
Lithium batteries need little, but they should be kept within their temperature range, monitored for warnings and checked during routine inspections. If you notice faults, see our solar maintenance and repairs service.
Is a battery-only upgrade the same as a hybrid system?
Not necessarily. A battery upgrade adds storage to equipment you already have, while a hybrid system combines panels, inverter and battery in one design. See our hybrid solar systems page to compare.
Get a Free Solar Battery Quote in Pretoria
Tell us what you want to keep running, your current inverter and your suburb. We will come back with an honest recommendation and an itemised quote. No pressure and no jargon.
+27 82 901 7452 · Solar Installer Pretoria · 802 Arcadia Street, Pretoria · Mon to Sat, 8:00am to 5:00pm