Bought a redtop Optima battery for my 97' GTI VR6 a little or a year ago. Fit great in the engine compartment and still putting out tons of juice like the first day I cranked it over.
Currently I run a blue top marine battery, I hardly ever drive my jetta anymore. Will start up fine after sitting for weeks or even longer. Love it!
I have always used an optima red top for all the cars I have owned. Never had an issue.
I have run an Interstate battery without issues for the last year, but recently switched to an Optima Red Top. Although I had to get creative in mounting the fuse box on top of the battery, it is nearly 200-300A more than the Interstate in regards to CCA and CA. I am highly impressed. My Escort 8500 has a built in voltmeter. When I would sit at idle with the Interstate battery with all accessories running (lights, A/C, radio) and with as hot has it's been as of late, I would get a low voltage warning (10.5 VDC) when it activated. With the Optima I have yet to see one.
I've got an optima yellow top & it fit w no problem. No modification whatsoever. You just gotta make sure tha +/- (positive/negative) are reversed.
I think we have an Optima in our Mk1 diesel.
Im running an optima redtop 1000 cca. Starts like a champ in -10 degree weather.
I have the model 35 and the stock cover does fit over it: As far as long term, I haven't been super impressed... I've had my redtop die a few times over the last few years, not even from extended use... however it did get rid of issues I had with my lights dimming from the sub and if I decide to drive upside down it supposedly can handle that
These Optima batteries are crap. Junk. The new battery that i have had for a year now installed in my EOS (that replaced the batteries that were left continually connected to the optimate charger) were tested at Advantage auto parts today and the tester said they only had 180 CCA out of the 750CCA that the battery is rated at. WTF-- JUNK !! I am so frustrated with tis Optima JUNK.
My dad put an Optima red top in his Porsche 930. He used the exact trickle charger you pictured for storage and because the car is driven only a couple of times per month in the summer. The battery was in there 2 years and I had to scramble late Friday night to install a replacement after it wouldn't start at the gas station (friendly attendant helped me bumpstart it). The battery stopped taking a charge.
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