Battery Life?

[RoverBoy]

Have a 2005 LR3 -original owner. Replaced battery (Interstate MTP-H8) December of 2011. Moved from CT to FL in early 2014. Battery is showing signs of failure. Trickle charged overnight and still won't crank the car. I replaced failed alternator in the fall of 2013 with OEM part. Is it possible that the battery is really dead after only 4 years? Is FL heat likely a factor in that?

Thanks,

[Joey]

Yes a battery can go bad in 4 years, remember the rover uses a lot of power even when it isn't running.