BEEF7613 Posted December 30, 2011 Report Posted December 30, 2011 If I have a dual purpose deep cycle battery up front could I put a marine battery in back hooked up to the main battery? Or do I need to get a second dual purpose battery?
jmilch Posted December 30, 2011 Report Posted December 30, 2011 If I have a dual purpose deep cycle battery up front could I put a marine battery in back hooked up to the main battery? Or do I need to get a second dual purpose battery? It is not recommended that you mix AGM (dry cell) with LA (lead acid aka wet cell) batteries. It is also a very bad idea to put a lead acid battery in the inside of a vehicle as they give off fumes. Pioneer AVH-P4300DVD | Hertz 6.5 | Alpine Type R 6x9 | Custom 200A Alt | Knu Flek 1/0 Big 3 and all wiring | Eclipse EA3422 | AudioQue 2200d | DC XL 12 | Red Oak Box ~2.8 cubes @ 30 hz |
Mad_Mike Posted December 30, 2011 Report Posted December 30, 2011 If I have a dual purpose deep cycle battery up front could I put a marine battery in back hooked up to the main battery? Or do I need to get a second dual purpose battery? It is not recommended that you mix AGM (dry cell) with LA (lead acid aka wet cell) batteries. It is also a very bad idea to put a lead acid battery in the inside of a vehicle as they give off fumes. Actually it makes no difference. A lot of people put wet cell under the hood and dry cell in the back. It really doesn't matter.. And yes wet cell batteries give off hydrogen, you don't want that in your car.
Fish Chris Posted January 1, 2012 Report Posted January 1, 2012 I've always heard its a bad idea to mix battery types..... or even, the exact same type, but old ones, and brand new ones. I've heard the old one can drain on the new one, killing it prematurely too ? If this is wrong, somebody please tell me about it in a convincing way. Fish
TRTC360 Posted January 1, 2012 Report Posted January 1, 2012 I've asked numerous people about mixing wet and dry cell batteries, what most have told me is that as long as you don't let the car sit for a long time you shouldn't have issues, if you plan on letting the car sit more than a week at a time either get an intellicharger that goes into float mode and keeps the batteries charged constant, get an isolator to prevent the front battery from draining the rear battery, or simply disconnect the dry cell from the wet cell. '93 Firebird Formula V8 H/U- Kenwood eXcelon KDC-X395 Mids/Highs Amp- Hifonics ZXI80.4 Wiring-KNU RCA's, Speaker Wire, And Two Runs Of Trystar 1/0 G34 Red Top and a 180amp Ford Alternator www.youtube.com/TRTC360
Socky Posted January 1, 2012 Report Posted January 1, 2012 Its not bad too, alot of people do it, just do not let the car sit for a long period of time. Jeep Cherokee 4dr -4.75 in front, new rusty's 4.5 in rear leafs -micky thompson 35x14.50x15 -locker rear -Rusty's offroad Engine/transmission/transfer case/crossmember/gas tank skid plates -Warn front bumper with 8000lb winch -Custom rear bumper -Warrior product tube doors (summertime) -Optima redtop (starter) -26XK miles and still runs like a bat out of hell Kenwood H/U 1/0 wire, 136 amp alt 200 ah batteries 12.7 daily 2 Apsm 1500 @ 2 ohm strapped on zv3 d1 with ns softparts Mb quart 125.4 wired to 4 aura 6's 3.6 cube box tuned to 36 plays down to 23hz
FredrickTFlail Posted January 1, 2012 Report Posted January 1, 2012 I have a mix between a wet cell and a dry cell. What happens when you leave them connected when the engine is not running is the more powerful battery charges the weaker one til the voltage levels out somewhere between the 2 batt's standing voltage.
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