IMO, the Optima Yellow top is your only option. It will last 5-10 Years.
Absolutely not true. I use an Optima battery, works great. Have for a few years now since my 2nd garbage oem battery went out. Or was it the 3rd?
I installed an Optima yellow top in my 2023 OBW. Works fine!
But during the ownership i found it really reliable, the only things i needed fixing were: battery (it was the original one over 7 years old), tyres and brake discs/pads (consumables on any car) and the regular oil/filter services.
Currently running a yellow Optima, 3 years and going strong. I don't recall what the OE battery was but it crapped out after 2 years in mild California weather.
BMW 3 series in the right rear panel. The location is ok, but the box is just enough to slip in a group 49, and there is an air vent hose on the forward side, and a clamp on the rear bottom that is impossible to reach with anything but little elf hands. Then there's also the starter cable, battery management and regular wires running in the same area, all hopelessly in the way..
I bought an Optima Red Top battery for my van, but the part store accidentally got me the one with top mount terminals only instead of top and side like I requested.
From my experiance with the optimal batteries you are better off with a Walmart battery and save money. I tried the optimal 2x. Both failed within a year. They were warranties but the replacements didn't last much longer.
Red Tops are sh* and have been for 10+ yrs at this point. \nThe last 3 or 4 I had didn't last 2yrs and I got warranty replacements, which also lasted 2yrs. For $300+ they are sh*.
My new BMW X3 was reliable.
It reliably would NOT start whenever the temperature dropped below -20C, even with a battery tender on it. The dealer couldn’t find anything wrong with it.
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