Printable View
I need to replace my battery for my audio system I had bought one years ago at the marina because I was in a pinch not sure if it was the correct one to get since the one I got was a marine cranking battery.
So I guess my question is should I be getting a deep cycle marine batt or a marine cranking batt? The battery I had been using for audio was an interstate with 800 cold cranking amps 1000mca.
I'm only using factory speakers and 2 tower speakers and a sub with 2 amps.
Thank you
For better anchor play time, a dee-cycle is best for a house bank. You want to look at its Ah and ignore CCA/MCA values.
Ah ok thank you. I'm clueless as to what Ah I should be putting in there. I think a battery I found around the same size was 65ahQuote:
Originally Posted by MLA
Should I go higher? I don't do much anchoring or tie ups. Mostly just surfing
With some calculations, you estimate the needed amp/hours to run a given load for a given time. A battery of a given type and group size, will typically have very close Ah. So to really make an increase in Ah, you have to go up in group size or add a 2nd identical to the existing group size. This may require a larger box or tray, or even reorient the battery position.
mla is right in there's plenty of math to show what you ideally need.Quote:
Originally Posted by Leirhiht
for me, we always used the interstate deep cycles that came with the boat from the dealer for our 3 new purchases. all boats came with similar crank/deep cycle. I added an additional deep cycle in 2 of the 3 due to wanting long play times during the day but our last tige had the basic interstate deep cycle single battery and had no issues powering 1 ws and 2 arc audio amps at moderate volume levels for 2-3hrs at a time.
our only used boat, the z3, had a HUGE stereo system with 4 amps and 16 speakers running off a single deep cycle. we didn't use it much for cove listening, mainly surfing and no issues with it as well.