Should I disconnect the battery instead?

I don't drive that much lately. It can be idle for 2-3 weeks.

To keep my battery from being drained, I turn the engine on for about 15min twice a week and sometimes just move the car back and forth in the garage. Sorry, tamad ilabas ang sasakyan 😅

My question is, okay lang ba na idisconnect ko na lang ang battery. Connect it again and start the engine after 1-2 weeks? Para lang hindi mag discharge on days until next engine on and ma preserve health ng battery.

Anong pwede maging problema aside sa ma reset ang time and km counter (not sure sa term)?