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#11488041 - 03/19/16 06:33 PM Boat radio
Puro Offline

Registered: 02/13/13
Posts: 50
i recently bought a stereo and speaker combo for the boat. Should I buy a separate battery for it or should I wire it to the switch panel, which means it would running off the cranking battery. I'm afraid it will drain the battery out on the water. Thanks in advance for any suggestions.

#11488115 - 03/19/16 07:18 PM Re: Boat radio [Re: Puro]
Uncle Zeek Offline
"Good News, Everyone!"

Registered: 09/26/05
Posts: 16879
Loc: Lewisville
Probably ought to have a deep cycle battery for such doodads. If you only have a cranking battery & you run it down on the stereo you won't have a good day.
Originally Posted By: Jkrez
You should get a ticket just for punctuation. What adult types like that?

#11492901 - 03/22/16 08:40 AM Re: Boat radio [Re: Puro]
BODA Offline

Registered: 06/10/14
Posts: 214
Loc: Eagle Mountain Lake
well, if your'e running amps and woofers and the whole 9, run another battery, watch the battery voltage on your GPS. Not a bad idea to keep a set of jumper cables on the boat anyhow

#11492972 - 03/22/16 09:09 AM Re: Boat radio [Re: Puro]
smooth move Offline
Pro Angler

Registered: 10/14/12
Posts: 856
Loc: bayou vista,tx
i run mine off of one of my trolling motor batteries.
es le bon ton roulet

#11492974 - 03/22/16 09:11 AM Re: Boat radio [Re: Puro]
Cast Online   content
TFF Team Angler

Registered: 07/31/12
Posts: 4090
Loc: North Texas - God's Country
Why not use your phone and earbuds to spare the neighbors from your taste in music?

#11492982 - 03/22/16 09:13 AM Re: Boat radio [Re: Puro]
Capt. Andrew Offline
Extreme Angler

Registered: 07/28/11
Posts: 1104
Loc: Port Isabel/SPI
I run my head unit and gps off the motor battery and the amp off a spare.
Snook,Redfish,Trout Fishing South Padre Island, Texas.
Shallow Sport Boats Pro Staff
Mercury Marine Pro Team
Unfair Lures Pro Team

#11493140 - 03/22/16 10:04 AM Re: Boat radio [Re: Puro] Offline
Extreme Angler

Registered: 08/10/10
Posts: 1281
Loc: Entire Gulf and Atlantic Coast...
Definitely get a second battery. With or without the stereo issue, having the second battery is the cheapest $120 on the water insurance you'll ever have. Secondly... the amp can definitely draw down a battery. Andrews advice is sound.. at least run the amp off the second batt and remember to change the pergo switch so it will charge while running.

it's a great addition to a boat and lots of fun.
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#11506069 - 03/28/16 11:37 AM Re: Boat radio [Re: Puro]
Andrew Taylor Offline
Pro Angler

Registered: 03/01/14
Posts: 733
Loc: Emory, TX
I run mine off my cranking battery but i also move around a lot

#11526801 - 04/06/16 11:29 PM Re: Boat radio [Re: Cast]
Fritz423 Offline

Registered: 04/25/12
Posts: 495
Originally Posted By: Cast
Why not use your phone and earbuds to spare the neighbors from your taste in music?

On behalf of everyone this^^^^
Wishin' I was fishin', and dreaming of beer

#11531049 - 04/09/16 09:53 AM Re: Boat radio [Re: Puro]
BudT Offline

Registered: 04/08/11
Posts: 90
Can you run it off of the cranking battery? Yes. Everything in my boat electronically is run off of my cranking battery, 2 HDS's, head unit, amp and 4-8's, jack plate, power pole ect ect. However, I do have an over size cranking battery with excess CA and reserve capacity. I also replace and maintain this battery and TM batteries. I am able to watch the voltage level of the battery on my HDS as well as the Mercmonitor, which would both be good indicators of battery drain. If I got in a bind as a last resort, I could move over to a TM battery to get the motor started. I guess it really depends on your risk and tolerance level.


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