How do I check if my Vauxhall Corsa's battery is in good condition?

I recently bought a used Vauxhall Corsa and I'm not sure if the battery is still in good condition. What are some signs that the battery might need to be replaced?

One way to check the battery's condition is to use a multimeter and measure the voltage. A healthy battery should have a voltage of around 12.6 volts.

You can also look for any visible signs of corrosion on the battery terminals. If there is buildup, it can affect the battery's performance.

Another indicator of a weak battery is if your car is having trouble starting or if the headlights are dimmer than usual.

It's also recommended to have your battery tested at a mechanic or auto parts store every 6 months to a year.