I saw a battery box (which I'm guessing would hold a deep cycle AGM) with a sticker on the side. It said 12.7v 100%, 12.5v 80%, 12.2v 50%. 10.5v flat.
As a general rule is this true?
Ricky wrote:11.5v to11.9v would be flat, depends on the battery.
Anything under 12.1v is severely reducing the life span of the battery.
If your battery hits 10.5v chances are its toast. And if you do recover it you will have reduced its life by probably 80-90%.
coughy wrote:where talking about DEEP cycles Here lads dont forget
yes it would be the case if the item using it draws a few amps then it would be struggling to work
but if only a radio or something it will still work and drop the volts down more
coughy wrote:true to some degree
a agm is a totally different animal and is built to go flat and then recover from it
totally different from a lead acid cell
but yes if you stick to this you will be fine
i play with batterys all day every day as part of my job and you would be surprised what comes back and what dont
but dont forget we have VOLTS and AMPS to very different things in a battery lots of variables involved
but yes 11.2 is flat
DingoCC wrote:I saw a battery box (which I'm guessing would hold a deep cycle AGM) with a sticker on the side. It said 12.7v 100%, 12.5v 80%, 12.2v 50%. 10.5v flat.
As a general rule is this true?
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