Quote:

When a flooded lead acid battery is discharged (dead) the electrolyte (acid) concentration is very weak (mostly water). Sulfuric acid has much lower freeze point than water.
That is why a dead (or very weak) batt can freeze.

that's it & the counter guy thought you let it discharge way down & that's why he didn't want to warranty it

live every 24 hour block of time like it's your last day on earth