Heat does most of the damage. Months of high under-bonnet temperatures, short hops along Jumeirah Beach Road and long spells parked outside wear a Genesis battery down faster than it would in a cooler climate, and the weakness tends to show up in summer.
Genesis models carry heavy electrics, and many take AGM batteries. On some sedans the battery sits in the boot, with boost terminals under the bonnet.
We regularly replace batteries in the G80, GV80, G90, and GV70. Whichever Genesis you drive, the technician tests the old battery first, confirms the correct size and type for your car, then fits and checks the new one while you watch.