Your battery may be drained in 31 days since it consumes some level of power when just parked. I always keep a jump starting battery in the trunk. The chances of dead battery is higher with battery age and cold weather.
I had low battery warnings on my MDX and RLX when both vehicles sat for +3 weeks early into the lockdown. I used a battery charger and drove the vehicles a bit more each week to keep everything all charged up.
I have a NOCO GB40 lithium jump starter that really comes in handy. Very small and compact size to store in the rear hatch. I had an older NOCO GB30 I gave to my son for his 06 TSX in college because vehicles can sit for months in student housing. He used it more for roommates and other students a lot times to help out.
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