We still have the wet cell battery mentality that somehow the battery is going to go dead if not left on a trickle charger or, heaven forbid, left disconnected & unattended for a month or more.
The newer battery chemistries go for months with very little self discharging. I have been an AGM fan since before my RVing days. My trailer AGM battery sits disconnected & unattended from November to April. Come back to it in mid April & power is still there to run 5er landing legs.
We buy lithium AA & AAA batteries, stick them in a drawer & don't get around to using them for months, years even, take them out & they are just fine.
I worry more about unattended battery chargers & trickle chargers failing than I do self discharging of batteries over time.
