Battery bad?


Old 04-27-14, 03:43 PM
dam is offline
Thread Starter
Join Date: May 2005
Location: us
Posts: 51
Battery bad?

If my deep cycle battery reads 12 1/2 volts but barely cranks the my outboard is it shot? I put this in this forum fir a quicker response.
Sponsored Links
Old 04-27-14, 04:01 PM
Rough Rooster's Avatar
Join Date: Feb 2014
Location: USA
Posts: 381
What does the voltage drop to when cranking? Anything under 10V indicates battery is not performing as it should. Could just need charging, or it might be used up.

Old 04-27-14, 09:20 PM
Join Date: Apr 2014
Location: United States
Posts: 30
Take it to an autoparts store to have it tested, they should be able to tell you what amperage it's outputting. If it's low compared to what it's rated for, time for a new battery.
Old 04-30-14, 09:35 AM
Sharp Advice's Avatar
Admin Emeritus
Join Date: Feb 1998
Location: The Shake and Bake State USA
Posts: 10,440

It's not the voltage. It's the ampere hour measurement of battery condition and power.

If the battery is more then 5 years old, regardless of it's condition, time to replace it. Beats being stuck on the water unable to start engine.

If the electrical system from battery to engine is okay and the engines starter itself is in good condition, very likely it's the battery. Newer then 5 years old? May simply be undercharged.

IMO. Best to due as advised above. Remove it. Take it to any local auto parts store had have it tested. An amp hour discharge load test will reveal that battery condition. Any doubts. Replace it.

Regards, Good Luck & Safe Boating. Sharp Advice. Boating Enthusiast. Web Sites Host, Forums Monitor, Moderator Hiring Agent & Multiple Topics Moderator.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes