[senbrow]

You cycle multiple packs to run for hours.

Your battery blower sounds like it's just not very good.

I can move piles of wet leaves easily with my makita blower that uses two 18v batteries. It's a pretty old model too.

Batteries can surge power and not risk fire hazard like AC over a long extension cord. Manufacturers know this and have to intentionally limit draw way below the 15A ceiling so a 100ft 14AWG cord doesn't trip breakers or burn houses down.