blazen244 Posted February 15, 2006 Report Share Posted February 15, 2006 :huh: I need to know if anyone have put a deep cycle battery in there 850 and if so did the stock cables reach or did you have to have new ones installed Link to comment Share on other sites More sharing options...
Texas850Turbo Posted February 15, 2006 Report Share Posted February 15, 2006 What's wrong with your battery now? Link to comment Share on other sites More sharing options...
blazen244 Posted February 15, 2006 Author Report Share Posted February 15, 2006 What's wrong with your battery now?I have a Die Hard International battery and the car sometimes sits for maybe a week and a couple, then I have to keep giving it a hot shot to get going. This happens every winter it's starting to get annoying Link to comment Share on other sites More sharing options...
GT2 Posted February 15, 2006 Report Share Posted February 15, 2006 I have a Die Hard International battery and the car sometimes sits for maybe a week and a couple, then I have to keep giving it a hot shot to get going. This happens every winter it's starting to get annoyingDeep cycle batterys should not be used in standard Automotive starting/charging systems. I can go into more detail if you want.A deep cycle battery wont fix your drained battery problem! Link to comment Share on other sites More sharing options...
blazen244 Posted February 15, 2006 Author Report Share Posted February 15, 2006 Deep cycle batterys should not be used in standard Automotive starting/charging systems. I can go into more detail if you want.A deep cycle battery wont fix your drained battery problem!OK have any ideas I also have three fosgate amplifiers running to ,but they are not on until the head and processor comes on Link to comment Share on other sites More sharing options...
EricF Posted February 15, 2006 Report Share Posted February 15, 2006 Disconnect the negative battery terminal when you know it's going to sit for awhile. If your battery is good it should hold a charge like that for quite awhile... Link to comment Share on other sites More sharing options...
GT2 Posted February 15, 2006 Report Share Posted February 15, 2006 OK have any ideas I also have three fosgate amplifiers running to ,but they are not on until the head and processor comes onWell its hard to say, not knowing all the details.Based on your amp situation, Are you using a stock alternator?Maybe it cant keep up with your elect draw, and there for when you shut down your battery is already low?Have you checked for battery draw with everything shut off?Tim Link to comment Share on other sites More sharing options...
Owned Posted February 15, 2006 Report Share Posted February 15, 2006 Deep cycle batterys should not be used in standard Automotive starting/charging systems. I can go into more detail if you want.A deep cycle battery wont fix your drained battery problem!I'd be interested in hearing your theory on this. Deep cycle batteries are used in everything from ambulances to the Tug's that you see on most airport tarmacs.I've probably seen 100's if not 1,000's of deep cycles used for SLI uses in a "standard" automotive systems, aswell. There are some not meant for SLI use, but beyond that, I've never heard of a good reason to not use them.Blazen, if I were you, I'd do some poking around with a voltmeter and see what's happening. It's always good to know what exactly is happening before you start trying to solve the issue. It's possible that you're not producing enough power at the alt or perhaps there's some draw happening while the car is off. Maybe your glove box isn't closing right and the little light in there is on 24/7. A voltmeter will help you figure out what's really causing your issue. Link to comment Share on other sites More sharing options...
GT2 Posted February 15, 2006 Report Share Posted February 15, 2006 I'd be interested in hearing your theory on this. Deep cycle batteries are used in everything from ambulances to the Tug's that you see on most airport tarmacs.I've probably seen 100's if not 1,000's of deep cycles used for SLI uses in a "standard" automotive systems, aswell. There are some not meant for SLI use, but beyond that, I've never heard of a good reason to not use them.---------------------------------------------------------------------------------The uses you mentioned are not standard automotive apps.The semi tech reason is because deep cycle batterys are designed to produce a constant amp draw all the way down to "dead" then be totaly re- charged again. The constant re- charging from an altenator shortens thier life. ( this is not to say they wont work, its just not proper!)Here is the kicker that applys to modern automotive type engines ( especially ones with a lot of computer type elects)A standard auto battery is designed to have high initial amps and voltage. After extended cranking it drops off. This "high" initial stuff is needed so that the computers and stuff see the proper voltage.When you use a deep cycle battery, under crank you see a instant voltage drop that messes with some elects. ( This causes a lot of problems on the new Volvo marine engines with all thier fly by wire stuff.)Now obviously if you use a big enough deep cycle battery(s) it can work!The ambulances are using the deep cycle batterys thru a converter to run the medical equip.If you pop the hood you will prob see a standard battery for the engine.Cant say about the Tug. :) Link to comment Share on other sites More sharing options...
blazen244 Posted February 15, 2006 Author Report Share Posted February 15, 2006 Thanx for the info I will try to see if there is an abnormal draw happening Link to comment Share on other sites More sharing options...
blazen244 Posted February 15, 2006 Author Report Share Posted February 15, 2006 :huh: With the car running it's giving me just around 14 volts I haven't checked the draw yet ,but I notice after I get it running when the RPM's are low (coming to a stop ) the lights may get low and the back up when the car idles evens out until the battery has charge enough to hold. Now keeping in mind this only happens during the colder months Link to comment Share on other sites More sharing options...
maiku Posted February 15, 2006 Report Share Posted February 15, 2006 With the car running it's giving me just around 14 volts I haven't checked the draw yet ,but I notice after I get it running when the RPM's are low (coming to a stop ) the lights may get low and the back up when the car idles evens out until the battery has charge enough to hold. Now keeping in mind this only happens during the colder monthsi have the same problemi'm beginning to suspect that1. alternator is dying (only after 90k?!)2. serpentine belt needs replacing?i REALLY doubt its my battery my super powerful optima red top shouldn't be causing problems Link to comment Share on other sites More sharing options...
blazen244 Posted February 15, 2006 Author Report Share Posted February 15, 2006 i have the same problemi'm beginning to suspect that1. alternator is dying (only after 90k?!)2. serpentine belt needs replacing?i REALLY doubt its my battery my super powerful optima red top shouldn't be causing problemsWith that optima battery did the stock cables fit or did you mod to make it work I'll look more into the alternator I do have 127,000 miles on it Link to comment Share on other sites More sharing options...
maiku Posted February 15, 2006 Report Share Posted February 15, 2006 the 850 cabling took a bit of coaxing to get it to fit, but i didn't have to replacethe S70 seemed to have a bit more clearance so it fit better Link to comment Share on other sites More sharing options...
PullMyFinger Posted February 15, 2006 Report Share Posted February 15, 2006 I just installed an Optima Red Top 34R. It has top posts with the + and - terminals switched to match the Volvo layout. The + lead fit no problem at all, however the - lead would not fit. No way, no how. The Optima has a 2 inch set back (because of the spiral cell design) and the - terminal is a solid unbendable chunk of metal that would not reach. A replacement - lead is necessary or you can add an extension. I did the extension temporarily and will remove the battery and tray later and replace the - lead completely. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.