[insane79]

Hi Guys,
I m in a dilema, my car is a 2009 e90 lci with the stock battery, recently i got a low battery warning as i was getting my interior clean't & forgot to turn of the interior lights, my car does hardly any running around 300miles a month as its my weekend ride & i got another car for my main commuting/driving. I m confused if i should get a battery charger or just use this battery till it dies off. The battery is around 3.5yrs old now so should a replacement be due even if i charge it up with a charger frequently when the car isn't used much? Should i just use this battery & get a new one later on? what you guy recommend me to do.

Thanks..