At CDS Car Keys, we specialise in 12V lithium battery restoration in Birmingham for high-performance vehicles, including Porsche and Lamborghini models. If your vehicle is suffering from low voltage, non-start issues, or battery faults, our expert restoration service can save you the cost of a full replacement.
Many of these issues are caused by the battery being left flat for too long, which can lead to deep discharge and loss of functionality. Our specialist restoration process is designed to safely recover these batteries where possible.
Lithium batteries in luxury vehicles can cost £1,500–£4,000+ to replace. Our battery restore service in Birmingham provides a cost-effective alternative:
Restore your original battery performance
Avoid expensive dealership replacement costs
Maintain OEM compatibility
Fast turnaround times
We support restoration for a wide range of Porsche 12V lithium battery (LIFEPO4) part numbers, including:
9Y0-915-105-CY
9Y0-915-105-G
9Y0-915-105-GY
9Y0-915-105-J
9Y0-915-105-JY
9Y0-915-105-L
9Y0-915-105-LY
9Y0-915-105-M
9Y0-915-105-NY
9Y0-915-105-Q
9Y0-915-105-QY
9Y0-915-107-EM40
9Y0-915-107-H
9Y0915107H
9Y0915107RY
If your battery part number is listed above, we can likely restore it safely and efficiently.
If you’re experiencing any of the following issues, your lithium battery may be recoverable:
Vehicle won’t start
Low voltage or battery warning messages
Electrical faults or system errors
Battery drain when parked
Battery completely flat after being left unused
We perform a full health check of your lithium battery, including voltage, charge cycles, and internal resistance.
Using specialist equipment, we carefully restore charge capacity and stabilise battery output.
We understand the sensitive electronics in high-performance vehicles and work with precision to avoid faults or damage.
We make the process easy and convenient:
You can remove and bring your battery back to our workshop for restoration
Or you can post your battery to us for a fast turnaround service
Our lithium battery restoration service is available across a wide range of locations, including:
Birmingham
Solihull
Sutton Coldfield
Wolverhampton
Walsall
Dudley
West Bromwich
Oldbury
Halesowen
Stourbridge
Coventry
Leicester
Nottingham
Derby
Loughborough
Northampton
Tamworth
Lichfield
Cannock
Burton upon Trent
Stafford
Stoke-on-Trent
Warwick
Leamington Spa
Redditch
Bromsgrove
Worcester
Kidderminster
We also offer a UK-wide postal service, so you can send your battery to us from anywhere in the country.
Specialists in high-end vehicle electronics
Experienced with Porsche & Lamborghini systems
Flexible workshop and postal service options
Save money vs dealership replacement
Fast turnaround times
Don’t replace your battery unnecessarily. Contact CDS Car Keys Birmingham for expert 12V lithium battery restoration today.
📞 Call now for a free quote
📦 Post-in service available UK-wide
🚗 Mobile collection available across the Midlands
🕒 Same-day service available
The most common cause is being left flat for extended periods, which leads to deep discharge. This is exactly what our restoration service is designed to fix.
Most batteries can be restored unless they have internal cell failure. We confirm this during diagnostics.
Typically 1–3 hours depending on the battery condition once received.
Yes. We use safe, proven methods designed specifically for high-performance vehicle battery systems.
CDS Car Keys – Birmingham’s trusted Porsche & Lamborghini lithium battery restoration specialists.











