Yes, definitely doable, but you'll need to have a smart switch to turn the stand on and off.
I use these tasker rules to only start charging my phone when it drops below 20% and then stop charging at 90%.
- Create two tasks, one to turn the smart switch on and the other to turn it off.
- Create a 'Battery <=20%' Profile which runs the 'Turn Smart Switch On' task and has criteria of:
> Battery Level From 0 to 20
> Power Source Any (you might just want to use Wireless if using the Stand) - Also set the Invert tickbox to True
> Wifi Near <your home wifi SSID> (so the profile doesn't run when you are away from home)
- Create a 'Battery >=90%' Profile which runs the 'Turn Smart Switch Off' task and has criteria of:
> Battery Level From 90 to 100
> Power Source Any (you might just want to use Wireless if using the Stand)
> Wifi Near <your home wifi SSID> (so the profile doesn't run when you are away from home)