battery questions

Capt. Read Nichols · 11-09-2008, 10:20 PM

hey guys i have 3 bat. in my boat they are interstate and i have two for cranking and one for acc. but they are draining in about 12 hours. i have a battery switch even with it off they still drain and the bat. are good. i have checked everything that i know and just wondering if anyone knows or has any ideas let me know

X-Shark · 11-09-2008, 10:56 PM

This is a elimination problem.

What is connected direct to the battery and which battery is being discharged?

DOUBLE "D" & LV · 11-10-2008, 02:09 AM

Like X said. Could be so many things. It's all an elimination game.

oldflathead · 11-10-2008, 08:34 AM

I have eliminated by, hooking an ammeter between the positive post and each connection until I found the one showing current. Then you have found the leak and can fix or replace the item.

Tom

Tuna Man · 11-10-2008, 09:33 AM

Disconnect EVERYTHING except the leads going to your battery switch. Check that the battery switch is not defective.Then one by one hook back up and testuntil you find the culprit. It might not be at the battery, it might be a piece of electronics after the buss bar.

You say you have 3 batteries and that they drain in about 12 hours....:banghead ALL 3 of them.

You say they are GOOD, How do you know for a fact. Have you disconnected EVERYTHING, and I mean everything,and they hold a charge? Not being funny but 3 going out at the same time kind of unlikely but possible.

sniper · 11-10-2008, 11:38 AM

sounds like they arent getting a charge from the alternator.

nic247nite · 11-10-2008, 11:41 AM

do you have a onboard battey charger?

Capt. Read Nichols · 11-10-2008, 11:53 AM

o well i only have the leads that go to the switch on the batteries. and the reason i know they are doo i took them to interstate battery who i have a small sponsorship by and they hook all of them up and said they were good. the only think i have not done yet was change the switch. i was thinking that thats the problem

Capt. Read Nichols · 11-10-2008, 11:54 AM

and no i sure dont have a onboard charger. and allso the alt. on the motor is good i can let it run for about a minute then it will charge right back up same as if i run it for 3 hours and all three will be dead in about 12 hours

slanddeerhunter · 11-10-2008, 09:46 PM

i had two in my boat did same thing even out of boat ,charged them up tested good next day down to 50% next day dead had to replace them.lucky they were still under warranty.

11-09-2008, 10:20 PM	#1
Capt. Read Nichols Member Ruby Red Lip Join Date: Jul 2008 Location: Perdiodo Key Posts: 89	battery questions hey guys i have 3 bat. in my boat they are interstate and i have two for cranking and one for acc. but they are draining in about 12 hours. i have a battery switch even with it off they still drain and the bat. are good. i have checked everything that i know and just wondering if anyone knows or has any ideas let me know

11-09-2008, 10:56 PM	#2
X-Shark Senior Member White Marlin Join Date: Oct 2007 Location: Pensacola, Fl. Posts: 2,870	RE: battery questions This is a elimination problem. What is connected direct to the battery and which battery is being discharged?

11-10-2008, 02:09 AM	#3
DOUBLE "D" & LV Senior Member Grouper Join Date: Oct 2007 Location: pensacola Posts: 863	RE: battery questions Like X said. Could be so many things. It's all an elimination game.

11-10-2008, 08:34 AM	#4
oldflathead Senior Member Grouper Join Date: Oct 2007 Posts: 1,129	RE: battery questions I have eliminated by, hooking an ammeter between the positive post and each connection until I found the one showing current. Then you have found the leak and can fix or replace the item. Tom __________________ [/SIGPIC]

11-10-2008, 09:33 AM	#5
Tuna Man Senior Member Grand Slam Join Date: Oct 2007 Location: Calera, AL....25 Miles S of Birmingham Posts: 6,581	RE: battery questions Disconnect EVERYTHING except the leads going to your battery switch. Check that the battery switch is not defective.Then one by one hook back up and testuntil you find the culprit. It might not be at the battery, it might be a piece of electronics after the buss bar. You say you have 3 batteries and that they drain in about 12 hours....:banghead ALL 3 of them. You say they are GOOD, How do you know for a fact. Have you disconnected EVERYTHING, and I mean everything,and they hold a charge? Not being funny but 3 going out at the same time kind of unlikely but possible.

11-10-2008, 11:38 AM	#6
sniper Senior Member Sailfish Join Date: Oct 2007 Location: P-Cola, FL Posts: 2,254	RE: battery questions sounds like they arent getting a charge from the alternator. __________________

11-10-2008, 11:41 AM	#7
nic247nite Senior Member Trigger Join Date: Oct 2007 Location: Posner Marine Posts: 230	RE: battery questions do you have a onboard battey charger?

11-10-2008, 11:53 AM	#8
Capt. Read Nichols Member Ruby Red Lip Join Date: Jul 2008 Location: Perdiodo Key Posts: 89	RE: battery questions o well i only have the leads that go to the switch on the batteries. and the reason i know they are doo i took them to interstate battery who i have a small sponsorship by and they hook all of them up and said they were good. the only think i have not done yet was change the switch. i was thinking that thats the problem

11-10-2008, 11:54 AM	#9
Capt. Read Nichols Member Ruby Red Lip Join Date: Jul 2008 Location: Perdiodo Key Posts: 89	RE: battery questions and no i sure dont have a onboard charger. and allso the alt. on the motor is good i can let it run for about a minute then it will charge right back up same as if i run it for 3 hours and all three will be dead in about 12 hours

11-10-2008, 09:46 PM	#10
slanddeerhunter Senior Member Trigger Join Date: Jun 2008 Location: saraland alabama Posts: 211	RE: battery questions i had two in my boat did same thing even out of boat ,charged them up tested good next day down to 50% next day dead had to replace them.lucky they were still under warranty.

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