From what I’ve read in the comments, I would try to address the issue with the anit theft device. If it’s too expensive or difficult, you could invest in a battery tender. Some will have an attachment that bolts to the battery leads so you can quickly connect and disconnect it. You can also leave them for months at a time without worry as it monitors the battery voltage. Here’s the one I like to use: https://www.amazon.com/NOCO-G7200-UltraSafe-Battery-Charger/dp/B004LWTHP2