Second battery died after 1 year - battery or something else?

[invisible]

Story - bought 2005 RR back in 2022. The previous owner put a new battery from Walmart - EverStart H9, 950 CCA 3 month earlier. Year and half after purchase, beginning of 2024 battery died. Took it back to walmart and they replaced under warranty (they have 3 year warranty) and put new. This was Feb 2024.

This April left for extended overseas trip for 40 days. Car was parked in on a street. Upon return battery is dead. Called AAA, they came, jump started it but I could tell that something was off already based on how slow starting was. Took today back to walmart for test, yep - dead.

Supervisor at walmart did replace this time under warranty as well, and now they put EverStart Platinum AGM battery but told me that this was last replacement - if something goes wrong, I have to buy a new battery.

So my question is - what might be something there that causes battery to be dead after a year?

 

[Rover Range]

Walmart. Nuff said.

 

[drivesafe]

Hi Invisable, You can not leave these vehicle for 40 days without having some for of charge on the battery.

Even as little as a week without driving, can flatten a battery, how often do you drive your RR and when you do drive, how long is each trip.

 

[ozarkimport]

Yep, two things here. First, the Everstart battery. They are junk. Secondly, like drivesafe says, you can't leave an AGM battery in a car that sits for extended periods of time.