Optima Yellow Top?
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=799
Printed Date: August 20, 2025 at 2:14 PM
Topic: Optima Yellow Top?
Posted By: carguy411
Subject: Optima Yellow Top?
Date Posted: May 16, 2002 at 8:12 AM
i want to put in a new optima yellow top battery in my 2001 nissan xterra.somone told me that i need a type 25 battery and they dont make those. but someone also told me that i can use a type 24. can somebody let me know if they ever put a yellow top in an xterra and it fit with out mods. thanks also im putting in a us acoustic usd800d digital amp to run 2 audiobahn 10" high excursion subs with 1 farad cap and hopefully a yellow top. i also have running other accessories like: hid conversion kit, piolot fogs, whelen strobes, alpine cva 1003 monitora nd a dvd player. there not all on at once most of the time but i dont want to upgrade my altenator is the bat and cap enought power i think it is just making sure thanksplease let me know bboy411@aol.com
Replies:
Posted By: NyxBass
Date Posted: May 16, 2002 at 2:59 PM
The Optima Yellow Top in the stock position may help to keep your system charging, and the cap might help a very tiny bit. I would go ahead and to what you have planned, and if you end up experiencing low voltage (dimming lights and such) then you can look into a re-wound alternator (much cheaper than whole new one).
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/NyxBass
Posted By: CutDog504
Date Posted: May 17, 2002 at 1:29 AM
I have had a bad experience with a yellow top optima battery. i installed a red top, and a yellow top. the red top in place of my stock battery, and the yelow top as an auxilliary battery strictly for my amps. Within 10 months, the yellow top started going dead on me. I tried over and over to fully charge it. but it wouldnt hold a charge. and by the time i acyually realized i had a bad battery, my "12month" warranty had expired! The guy at interstate battery(where i purchsed it) said that the yellow top is a deep cycle battery meant to be fully drained, then charged, then fully drained again, and so on. but i had it wired up to my alternater to keep it constantly "topped off" just like a regular automotive battery. he said this is what made it fail prematurely. so this time around, i have 2 red tops, one of which is the original one i mentioned earlier, and havent had anymore problems. Because the red top is made to replace a factory battery, it can be charged with your alternator with no problems. Works for me!
Posted By: carguy411
Date Posted: May 17, 2002 at 9:49 AM
really. i read that the red top is not to be used at a starter battery and for large current draws casue that would drain it faster.now im all confused. i have an average system that im putting in. but other accersories i just want to make sure i have enough poer and that i wont have a deas battery. how are you supposed to drain and re charge a bttery like that .i dont understand ?please let me know someone?
Posted By: NyxBass
Date Posted: May 18, 2002 at 1:50 PM
The yellow top is meant to be a deep cycle. Meaning, it will handle repeated discgargings and rechargins without dying like a normal battery. I have seen quite a few installs with these as aux batteries charging off the alternator, and havn't heard of any problems. I think CutDog got a bad battery  which really sucks. The red top is meant to be a starter battery for large draw applications (read - big a** high compression engines) that take a lot of cranking amps to turn over. I'm not sure about fit in your xterra though - I know that most of the better shops around here carry them, and if you're a good sweet-talker, they'll probably let you see if it will fit. ------------- /NyxBass
Posted By: carguy411
Date Posted: May 19, 2002 at 1:28 AM
alright kool so i can use that yellow top as a main battery for my truck and to power my system with no problem then???? i hope i can get one to fit will see thanks
Posted By: NyxBass
Date Posted: May 19, 2002 at 9:37 PM
You shouldn't have any problems running your car with a yellow top in stock position if it fits. Let us know how it turns out! ------------- /NyxBass
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