I grew up in California, where rain was less of an issue and most landscapers I saw used open-bed pickups with all their tools. I'm currently in Oregon, most landscapers use box trailers to house everything here, which I think might be key to this.
I saw an entertaining Youtuber with a "Solar powered" landscaping business in Florida, using a box truck with a hybrid inverter/solar charge controller/battery system, to recharge his lawn powertools while driving between jobs. I see this as a much more practical solution that just having enough of "proprietary company X" battery. Keep your batteries charging 24/7 while working, essentially. Toss some solar if the climate affords it on top to charge the larger batteries used for your inverter up. Plug in the entire trailer when you get home.
I saw an entertaining Youtuber with a "Solar powered" landscaping business in Florida, using a box truck with a hybrid inverter/solar charge controller/battery system, to recharge his lawn powertools while driving between jobs. I see this as a much more practical solution that just having enough of "proprietary company X" battery. Keep your batteries charging 24/7 while working, essentially. Toss some solar if the climate affords it on top to charge the larger batteries used for your inverter up. Plug in the entire trailer when you get home.
https://www.youtube.com/watch?v=93F08kdiOfE