You would need at least 3 batteries per piece of equipment in use at one time in order to not have to spend time idle while a battery recharges ($700-$1000 upfront investment in batteries per piece). The lifespan of those batteries under constant usage would be atrocious.
Even if you could solve the battery problem, the power of the equipment doesn't come close to gas. My Ego leaf blower doesn't even compare to the plug-in electric one I had prior to acquiring it, and I still have to revert for some harder jobs. An example of this: if there is a clump of wet grass on concrete, like something left behind from a mower wheel, the Ego struggles to move it while the plug-in has no problem. Or if a pile of leaves is damp, forget about it.
The mowing quality is terrible, leaving long patches everywhere (despite a sharp blade and slow progression). The form factor of the mower deck makes corners and edges much more difficult than other machines. And because the power is limited, the mulching capabilities are almost nil. It shuts down quickly if you hit a particularly tough piece of lawn to avoid overloading its motor.