Offshoreonly.com - How many batteries do you need

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Offshoreonly.com (https://www.offshoreonly.com/forums/)

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- - How many batteries do you need (https://www.offshoreonly.com/forums/general-q/100208-how-many-batteries-do-you-need.html)

rssteiny

04-14-2005 07:42 PM

Re: How many batteries do you need

HEY DAN ITS RICK IN PA THAT BOUGHT YOUR OLD 25, I NOW HAVE THE 32 AUDACITY BOAT W/ 4 AMPS 400 W EACH 2 EQS AND 11 SPEAKERS W/ 3 SUBS I HAVE 3 BATTERYS AND HAVE NO PROBLEMS AT ALL.

BY THE WAY WHAT IS THE NEW RIDE I REALLY LIKED YOUR 37 ??

GL RICK :drink:

jlsnyder26_Sonic

04-14-2005 08:20 PM

Re: How many batteries do you need

In my last boat I had 2800 watts running 8 woofers and countless mids and highs. With just two optima batteries, I could play it at full volume for about 6 hours and still crank the motor at the end of the day. :D I did have a 200 amp alternator for charging between parties. :cool:

The optima's are just rated at 55amp hours as stated before. One good (100amp hour) deep cycle battery will do if you want to save on some weight.

AeroSpeedMarine

05-20-2005 06:22 PM

Re: How many batteries do you need

1 Attachment(s)

Quote:

Originally Posted by thunderdan

I am wondering how many batteries I am going to need in my boat. It is going to have a 800w stereo in it with 2 amps, with twin 525's. It has 2 optima batteries and I am wondering if I should opt for a 3rd for backup?

go 1 batcap for every amp and you wont need to add the extra weight of a battery take it from me ive learned the battery power i play 20 + hrs and still can start and go when i want

FOUNTAINATLAST

05-20-2005 06:32 PM

Re: How many batteries do you need

At 800W i would think 2 batteries would be fine. If your concerned about the charge in the batteries but them on a slow charge when you have it parked so there fully charged next time you go out. With my old system I was pushing close to 2000W with only 2 batteries & never had any problems, as long as they were fully charged throughout the week with a trickle charger.

Strip Poker 388

05-21-2005 03:48 PM

Re: How many batteries do you need

Remember this it depends on who's 800watts your talking about . Most amps are over rated .Some are not efficient :(

Like a buddy of mine bought a 2000wt at the pawn shop and wondered why my 300 wt amp was louder :D

RedDog382

05-22-2005 10:58 PM

Re: How many batteries do you need

I have a good 3-terminal battery isolator out of my 382 Formula if anyone needs one. $100.00 ($175.00 new).

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