Battery Support is vital when it comes to diagnostics work

According to CTEK, in today’s modern workshop, battery support is no longer a “nice to have,” it’s a fundamental part of best-practice servicing, diagnostics, and performance work.
Regardless of whether a vehicle is in for routine maintenance, advanced diagnostics, or performance upgrades, stable battery support underpins almost every task.
The battery is quite literally the electrical backbone of the vehicle, and without adequate support, CTEK warns even minor jobs can introduce unnecessary risk, inefficiency, and potential customer comebacks.
Vehicle electrical loads have increased dramatically over the past decade, driven by the proliferation of onboard systems that remain active even when the engine is switched off.
Keyless entry, alarm systems, infotainment modules, digital instrument clusters, and body control modules all draw power continuously.
During diagnostic work, software updates, calibration procedures or fault tracing, these loads increase further – placing additional strain on an already taxed battery.
In performance and workshop environments, voltage instability during these processes can lead to corrupted data, fault codes, or in worst cases, ECU damage.
As leaders in battery charging and support technology, CTEK explains it has conducted extensive real-world testing to quantify just how demanding modern vehicles can be.
Testing on an average BMW X5 SUV revealed peak current draws of 27.1 amps for central locking, 40.38 amps for power windows, 30.6 amps for the electric parking brake, and 27.68 amps for vehicle lighting.
CTEK explains that even with the ignition off, simply having a door open draws 10.5 amps – rising to 32.8 amps with the ignition on.
These figures highlight how quickly voltage can drop if a battery is not actively supported during workshop operations, and for workshops, CTEK says the takeaway is clear: charging and conditioning batteries during servicing is not just preventative maintenance, it is a professional safeguard.
Consistent battery support helps prevent flat batteries, protects sensitive electronics, reduces workshop downtime and ensures customers leave with a vehicle that performs as expected, says the company.
CTEK PRO15S
CTEK describes its CTEK PRO15S as designed around the needs of the automotive professional.
Combining power and advanced technology with safety, portability and flexibility to work with any 12V vehicle battery, including lithium (12V LiFePO4), it is said to be the perfect solution to professional battery charging.
Thanks to its strong, robust construction and innovative technology, CTEK says the PRO15 can withstand heat, dust, humidity, and anything else you can throw at it, making it a great battery unit to have around a bustling workshop floor.
Further, CTEK says its battery support units are easy to use and reliable, helping to keep power supply stable, the vehicle’s stored data safe, and preventing damage to sensitive ECUs and other vehicle electronics.
They also feature a ‘RECOND’ mode to bring deeply discharged lead-acid batteries back to life and a lithium ‘wake up’ mode for batteries with under voltage protection.

To find out more about the entire range of CTEK products, visit www.ctek.com