Battery Storage Repairs and Renewals

RB Grant offer battery storage repair and renewal services. We are MCS approved PV installers with many years of experience installing battery storage. We offer a full fault diagnosis and offer help and advise to get your system operational. Contact us today for a free estimate.

Expert Battery Storage Repairs for Homes & Businesses

Has your battery storage system stopped working, lost capacity, developed a fault code, or stopped charging correctly?

RB Grant Electrical Contractors provide professional battery storage repair, fault finding, maintenance, and replacement services for domestic and commercial battery systems throughout Scotland.

Our experienced engineers diagnose and repair faults across a wide range of battery storage technologies, helping homeowners and businesses maximise the performance and lifespan of their renewable energy investment.

Whether your battery was installed alongside solar panels or added later as a standalone energy storage solution, we can identify issues quickly and provide practical, cost-effective solutions.

Common Battery Storage Problems We Repair

Battery systems are complex installations involving batteries, inverters, communication devices, protection equipment, and monitoring systems.

We regularly diagnose and repair:

Battery Not Charging

Battery remains at low state of charge
Charging stops unexpectedly
Solar generation not reaching the battery
Grid charging failures
Communication faults

Battery Not Discharging

Stored energy unavailable
Battery remains full but does not power the property
Time-of-use charging faults
Export control issues

Error Codes and Warning Messages

Our engineers investigate system faults across many leading manufacturers including:

Tesla Powerwall
Sigenergy
Fox ESS
Growatt
GivEnergy
SolaX
Solis
Huawei
Sunsynk
Alpha ESS

Reduced Battery Capacity

Over time, batteries may lose capacity or performance.

We assess:

Battery health
Cell degradation
Charge cycles
Operating conditions
Warranty eligibility

Communication and Monitoring Faults

Many battery systems rely on internet connectivity and monitoring platforms.

We can resolve:

Wi-Fi connection issues
Monitoring portal faults
Data communication errors
Firmware problems
App configuration issues

Battery Storage Fault Finding

Our systematic fault-finding process allows us to identify problems accurately and safely.

We Check:

✅ Battery modules

✅ Hybrid and battery inverters

✅ DC cabling and connections

✅ Circuit protection devices

✅ Communication equipment

✅ Smart meters and CT clamps

✅ Solar PV integration

✅ Power quality and grid connection issues

✅ Manufacturer diagnostics and fault logs

By carrying out detailed testing, we can often determine the root cause quickly and recommend the most effective repair solution.

Solar Battery Repairs

If your battery system is connected to solar panels, faults can sometimes originate elsewhere within the renewable energy system.

Our engineers can inspect:

Solar PV systems
Generation performance
Inverters
Optimisers
Export limitation equipment
Smart energy management systems

This comprehensive approach ensures that we identify the true source of the issue rather than simply treating the symptoms.

Battery Replacement Services

In some cases, repair may not be economically viable.

We can provide:

Individual battery module replacement
Complete battery replacement
Battery upgrades
Capacity expansion
Warranty replacement support
System modernisation

Our team will advise on the most cost-effective option based on the age, condition, and performance of your existing system.

Commercial Battery Storage Repairs

We support business clients with battery storage maintenance and repairs for:

Offices
Retail premises
Agricultural buildings
Hospitality venues
Manufacturing facilities
Schools
Community projects

Minimising downtime and ensuring system reliability is our priority.

Preventative Maintenance

Regular maintenance can significantly reduce the risk of system failure.

Our battery maintenance service includes:

Visual inspections
Firmware updates
Connection testing
Battery health checks
Performance analysis
Safety inspections
Monitoring system verification

Preventative servicing helps maximise battery lifespan and optimise performance.

Ensuring your battery storage system is functioning properly is essential—not only to prevent energy loss to the grid, but also to avoid potentially serious safety risks. Faulty battery installations have been linked to a growing number of house fires, making regular checks and proper installation critical.

For added protection, we recommend installing a smoke alarm near your battery system. These systems can be complex, and issues often stem from software faults or poor installation practices. If you're concerned about your system or unable to reach your original installer, it's wise to have it professionally inspected.

Unfortunately, many battery systems are connected without the necessary permissions or training. Always choose an approved and certified installer to ensure safety and compliance.

If you need expert assistance with battery storage repairs or inspections, contact RB Grant today for professional support.