Charging gas car’s battery every week
Let me start off by saying that I’m not very knowledgeable about cars so forgive me if this is a naive question.
There are two cars in my family that aren’t driven much anymore. They’re both gas and not new (maybe 5-10 years old). Because they’re not being used, a relative of mine wants me to charge their batteries every week using a plugin car charger. He wants this so he can use the cars when he’s in town and he knows the battery won’t be dead.
Is this necessary? This seems like overkill, but I’m not sure.
One of the cars: Toyota Camry 2016 (I’m not sure what engine)