My Interstate Mega-Tron Plus finally gave up in the single digit temps we have been experiencing. It lasted a couple months short of 10 years. I did inspect it at least a few times a year, topping off the water with distilled water when needed, and trickle charging occasionally in the winters. I would get another Mega-tron Plus without question. But...I decided to go with a Advance Auto AutoCraft Platinum AGM 24R ($146 out the door with core refunded / $50 coupon). A tad more than another Megatron Plus. I hope I made a good choice.