Ego makes a backpack blower, lighter , quieter, no gas required. I have an older handheld one works great.
I'll second that. The early EGO leaf blower was my first battery powered outdoor tool and I love it. Just pop the battery in and go. No gas, no smell, no difficulties starting, no engines to maintain, and a lot quieter than the gas blowers our neighbors use.
Their newer leaf blowers are even more powerful than the old model I have. I keep thinking about upgrading, but I have a hard time replacing something that still works good.
They do have the commercial backpack blower, but I don't see the need unless you're blowing leaves all day. I don't know if they still offer it, but they also had a backpack battery pack you could use with the handheld blower.
I pop a 5AH battery in my blower and can do our entire property. I have a 7AH battery, but that would probably get a bit heavy for extended use. The 5AH is about my comfortable weight limit. If you had a couple of batteries and the fast charger you could blow all day long if you wanted to.
I also have the EGO self propelled lawnmower, 18" chainsaw, and string trimmer. All are great tools, I sold my gas machines. They have a new two stage snow blower coming out too. That one is tempting, but it's a little pricey when I already have a gas machine that works fine. I just wish I could get rid of the last of my gas outdoor machines. I hate the noise, smell, and maintenance.