I use Stabil in my gas from fall thru spring. So - when the snow flies - I pull the battery from my lawn mower, bring it inside, put it on the charger for a full charge and the lawn mower sits, quietly out in the carport. Whatever gas is in the mower has always been good when things start up in the spring.
Been here 32 years and have NEVER had a problem with bad gas - as long as I use a gas stabilizer. Use stabilized gas in chain saws, generator, trash pump, motorcycle, ATV ........ no problems.