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<blockquote data-quote="Alpine50" data-source="post: 5758660" data-attributes="member: 589444"><p>The factory battery in my 03&#039; Nissan Altima did not keep a charge after about 2 1/2 years. Car was under waranty.My ol&#039; lady gave me a jump,car stoped at the gas station by her house.I&nbsp; parked car for the night at her place,I live in Alpine 26 miles away.After the&nbsp; jump,I removed the positive lead to the battery terminal(while car was running) and car continued to run,so I only needed a battery,not an alternator.The factory battery was a &quot;Nissan&quot; battery with 400 CCA.That is not a &quot;high power&quot; battery.The system I had in the car was Alpine-amps= 4 channel F-450 [70 rms x 4]/ M-650 1 channel[600] rms @2 ohms pushing 2 12w3-3-4 JL subs in a vented box. My lights dimmed some,when I pushed it hard.That same day, I went to Wal - Mart and bought their most powerful/expensive battery for the Altima...780 CCA..almost twice as big as the factory...5 year free replacement,after that,they pro-rate it.What a difference...dimming is gone...I now run 2 PDX Alpine amps 1000.1 /4x150 pushing 2&#039;R&#039; 12&quot; subs in a vented box...still,no dimming....all this for $73.50.They install them for free at their shop.I had to drive my shiny new yellow/black battery back to the Altima.I installed it and difference was worth every dollar.I can play my car radio at a normal volume for my 8 hour shift and get in and start the car perfectly.New,powerful battery and the big 3 is the way to go...CAPS..optional.............Alpine 50...</p></blockquote><p></p>

[QUOTE="Alpine50, post: 5758660, member: 589444"] The factory battery in my 03' Nissan Altima did not keep a charge after about 2 1/2 years. Car was under waranty.My ol' lady gave me a jump,car stoped at the gas station by her house.I parked car for the night at her place,I live in Alpine 26 miles away.After the jump,I removed the positive lead to the battery terminal(while car was running) and car continued to run,so I only needed a battery,not an alternator.The factory battery was a "Nissan" battery with 400 CCA.That is not a "high power" battery.The system I had in the car was Alpine-amps= 4 channel F-450 [70 rms x 4]/ M-650 1 channel[600] rms @2 ohms pushing 2 12w3-3-4 JL subs in a vented box. My lights dimmed some,when I pushed it hard.That same day, I went to Wal - Mart and bought their most powerful/expensive battery for the Altima...780 CCA..almost twice as big as the factory...5 year free replacement,after that,they pro-rate it.What a difference...dimming is gone...I now run 2 PDX Alpine amps 1000.1 /4x150 pushing 2'R' 12" subs in a vented box...still,no dimming....all this for $73.50.They install them for free at their shop.I had to drive my shiny new yellow/black battery back to the Altima.I installed it and difference was worth every dollar.I can play my car radio at a normal volume for my 8 hour shift and get in and start the car perfectly.New,powerful battery and the big 3 is the way to go...CAPS..optional.............Alpine 50... [/QUOTE]

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