How long before get flat battery lights on?

So am parked up rugby got here 7ish wagon in front curtains closed obv here for the night. But his side lights trailer lights are on. Tried knock on cab door no answer.its now 22.00 still on. .
Will he have a flat battery in the morning?

edd1974:
So am parked up rugby got here 7ish wagon in front curtains closed obv here for the night. But his side lights trailer lights are on. Tried knock on cab door no answer.its now 22.00 still on. .
Will he have a flat battery in the morning?

Nah as long as the battery is healthy should be fine.

Unlikely, unless it’s an older motor with a dodgy battery.

Vehicles are designed to have thier lights left on overnight, hence the now little used phrase, parking lights.

It’ll be fine.

As others have mentioned, it’ll likely be ok. There are factors though like the batteries condition, amp/hrs of those batteries and bulb types, std filament over LED’s ect for side/parking lights. Nothing worse than the dreaded ‘click’ in the morning though…

Well it’s 7 30ish I’ve woke up and he’s gone so must been fine.maybe he was being a good driver using his parking lights maybe who knows. Just nor something seen before

Maybe you are lucky you didn’t get a Tizer shampoo.

Plod will stick a ticket on the screen if you don’t have lights on.