running without a battery
11-02-2008, 04:18 PM
#42
3.0 BAR
Join Date: Mar 2006
Posts: 5,631
Re: running without a battery
Originally Posted by Joseph Davis
The battery is a storage cell for cranking the car, and the alternator is what supplies power to the system. I wouldn't run without a battery, though.
I have little love for those Odyssey batteries. They are a lot heavier than an equivalent-power lead-acid lawn mower battery, and about the same size. And they drain really fast, hook up a laptop and a wideband to the system and leave the engine/alternator off for 5 minutes, the car won't crank. Add in the $$$ pricetag and ---- those things. Even $50-something for the exact same thing in generic brand is a premium.
MISTER PHILL.... what is the amp rating of those 5lb units, and might I obtain one?
I have little love for those Odyssey batteries. They are a lot heavier than an equivalent-power lead-acid lawn mower battery, and about the same size. And they drain really fast, hook up a laptop and a wideband to the system and leave the engine/alternator off for 5 minutes, the car won't crank. Add in the $$$ pricetag and ---- those things. Even $50-something for the exact same thing in generic brand is a premium.
MISTER PHILL.... what is the amp rating of those 5lb units, and might I obtain one?
Consider this
?Jesus hate you JDM
11-02-2008, 09:30 PM
#45
1.5 BAR
Join Date: Oct 2006
Posts: 964
Re: running without a battery
Originally Posted by N/A mike
yeah unless you hook up some kind of clutch to the alternator (like on A/C) it's still spinning the alternator.
yea spinning, but the load on an alternator that is being used is WAY more than just the alternator being an idling pulley
ever used a generator before? noticed belt squeal ONLY when the ac compressor is in use? or how about belt squeal right after startup while the alternator has its highes load trying to recharge the battery from the drain during cranking and sitting before that
11-02-2008, 11:02 PM
#46
3.0 BAR
Join Date: Mar 2006
Posts: 5,631
Re: running without a battery
Originally Posted by Joseph Davis
Spiker, I've been through it with a couple cars. 
Soooo My 400 Watt amp draws less current running for ten minurtes at 25% than a laptop and a wideband for five
Not buyin it.
11-02-2008, 11:19 PM
#47
0.0 BAR
Join Date: Feb 2003
Posts: 0
Re: running without a battery
Originally Posted by bigdaddyvtec
Soooo My 400 Watt peak amp draws less current running for ten minurtes at 25% or 100 watts peak than a laptop 80 constant watts and a wideband 35 constant wattsfor five
You know, it does sound like it adds up to a bigger draw, since my amp only hits 100 watts whenever the bass hits, which is a comparitively short portion of 10 miutes. Further, my stereo installer probably turned down the gain on my amp because he knows I'm a fat fingered hooligan, so I'm probably getting 75% of what I think I am.Fixed it for you.
11-03-2008, 11:32 PM
#49
3.0 BAR
Thread Starter
Join Date: Oct 2005
Location: St. Augustine FL
Posts: 3,936
Re: running without a battery
Originally Posted by Joseph Davis
Fixed it for you.
