posted
Say a battery has a rating of 80AH, does that mean that the battery can supply that ammount of current for an hour or what? and how exactly does a battery's reserve capacity work? Lets say that same battery has a reserve capacity of 150 minutes does that mean it takes 150 minutes to recover, why is it the higher the number the better?
------------------ And you know this man! check out my ride at www.sounddomain.com/2592 Ill be hitting 150 soon!! :o
posted
The 80AH I believe would be the speed at which the battery will release power, and recover the power. Or how quick it releases it. The 150 I believe is how long it would last at a designated amp draw. For SPL, get a battery last releases and charges fast.
------------------ Johnathan Demuth Team Tiny Tunes Team MMATS PRO AUDIO
posted
To the best of my knowledge, most battery companies do their reserve by how long the battery will put out 25 amps of current before dropping below 10 volts i think. I am not sure about the other thing you mentioned though. My batteries have a reserve of 650 minutes . I havent got a chance to put them in yet. They weigh in at around 125lbs a piece.
------------------ 24 12's and a buttload of power!
Posts: 403 | From: Spokane Wa USA | Registered: Jun 1999
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posted
Well I am surprised I didn't see this post earlier.
The A/H rating on a battery has to due with the discharge rate of the battery. If you have a battery with a 80A/H rating it will discharge 1 Amp for 80 Hours, 2 Amps for 40 Hours and so on. You get the picture. Theoreticaly it would be a perfect 80 Amps for one Hour. However this rate of output falls with the increased rate of discharge. When you draw huge amounts for a short time you never get the expected number. The rate also changes with the temp of the battery.
The reserve capacity is for example the Optima 800U:
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