If your Lynk & Co 09’s 12-volt battery is dead after sitting overnight, something is staying awake when it should be sleeping. Here’s how to track down the usual suspects and know if it’s safe to keep driving.
Why does a healthy car battery go flat overnight?
When a battery drains in a few hours without the car being used, it usually means a module or component is drawing current with the ignition off. Modern cars like the Lynk & Co 09 are packed with always-on electronics, but they normally go into a low-power sleep mode after a few minutes. If one system stays awake — or wakes up again repeatedly — it can pull enough power to flatten a battery by morning. A faulty battery itself can also look like a drain, so a load test and checking the resting voltage are worth doing first.
