When people first look into home battery storage, they often imagine something complicated — a system that needs constant checks, servicing, and tinkering.
The truth? A modern solar battery is pretty low-maintenance. It doesn’t need polishing, oiling, or the kind of care an old boiler might. But, like any piece of electrical equipment, it does need to be installed properly, looked after sensibly, and checked from time to time to make sure it’s working safely and efficiently.
At GU Solutions, we’ve installed and maintained energy systems for homeowners around Basingstoke, Hook, Tadley, and Alton for over 20 years. Here’s what you really need to know about battery maintenance — and what can go wrong if it’s ignored.
Do solar batteries need regular maintenance?
In most cases, not much at all.
Modern lithium-ion batteries (the same type used in electric cars) are smart systems. They include built-in software that monitors temperature, voltage, charge levels, and overall performance — automatically balancing cells and protecting themselves from overcharging or deep discharging.
That means they’re largely self-managing.
Still, it’s wise to:
- Check the app or display occasionally to make sure everything looks normal
- Keep the area around the battery clean, dry, and well ventilated
- Book a professional check-up every year or two, especially if your system’s part of a larger solar setup
A brief annual inspection helps make sure all connections are secure, firmware is up to date, and your system’s performing at its best.
What can go wrong?
Let’s be honest — no system is foolproof. While battery technology is safe and reliable when installed correctly, there are a few things that can cause problems over time.
1. Poor installation
The number one cause of battery issues isn’t the battery — it’s the installer.
If wiring, fuses, or protection devices aren’t set up correctly, it can cause faults, tripping, or even void your warranty. That’s why it’s vital to use a qualified, NICEIC-approved electrician — someone who follows the IET Code of Practice for Electrical Energy Storage Systems and BS 7671 Wiring Regulations.
At GU Solutions, every installation is carried out by our in-house team — no subcontractors, no shortcuts.
2. Overheating or poor ventilation
Batteries like stable conditions — not freezing garages or boiling lofts. If your battery’s in a space that gets too hot or too cold, its performance and lifespan can suffer.
That’s why we always carry out a site survey before installation to make sure your chosen location is suitable, well-ventilated, and compliant with UK guidance.
3. Firmware or communication errors
Like all smart tech, batteries occasionally need software updates. These updates improve efficiency, fix bugs, or enhance safety features.
Some brands update automatically via Wi-Fi, others need a quick visit from an engineer. If updates are ignored for years, the system might not operate at its best — a bit like a smartphone that’s never updated.
4. Degradation over time
Even the best batteries gradually lose a little capacity after years of use — usually around 1–2% per year.
That’s completely normal and doesn’t mean it’s faulty. Most systems come with a 10-year warranty, and by the end of that period, they’ll still retain about 70–80% of their original capacity.
It’s just like any rechargeable battery — over time, it holds a little less energy, but still works reliably.
5. Ignoring small warning signs
Every now and then, a homeowner might notice their system isn’t storing as much power as usual, or the app shows a red light or warning message.
Most of the time, it’s nothing major — a connection, a setting, or an update. But leaving it unchecked can turn a small issue into a bigger one.
That’s why it’s worth having a local electrician you can call for advice. With GU Solutions, you’re never left on hold to a call centre — you get real people, nearby, who can help quickly.
So, how do you keep your battery healthy?
It’s simple:
- Keep it clean, cool, and dry
- Use a qualified installer for any upgrades or changes
- Check your monitoring app every so often
- Get it inspected every couple of years
- Don’t ignore warning messages — call a professional early
A few small habits go a long way in keeping your system safe, efficient, and long-lasting.
The truth: batteries are tough, but they still need a bit of care
Modern home batteries are built to last and designed to protect themselves. When installed properly and treated sensibly, they’ll run for years without fuss — saving you money quietly in the background.
But like any investment, a little attention now and then keeps everything working smoothly and safely.
Need your system checked — or thinking of installing one?
At GU Solutions, we’ve been serving homes and businesses across Basingstoke, Hook, Tadley, and the surrounding Hampshire area for over 20 years.
Whether you need a battery health check or you’re looking to install a new system, our NICEIC-approved electricians can help.
Call 01256 473326 or book your free home energy survey today. We’ll make sure your system is safe, efficient, and delivering the savings it should — without the worry.
