Help needed with Automation- Battery SOC and electric hot water systems/geysers

IHouse is offgrid with 2 electric hotwater tanks/ geysers

Geyser bedroom
Geyser kitchen

And SOC of lithium battery

What I want to do is switch geyser bedroom on when SOC is 98% then when geyser bedroom reach 75C in must switch off and Geyser kitchen must switch on and switch off when it reach 75C.
Both must switch off when SOC in lower than 96%.

Only one geyser can be on at a time.

Getting one working was easy, its the second one that giving me headaces

Dis I post in wrong section?