Musky Striker

Musky Striker · Posted: Thu Jul 29, 2010 11:18 am Post subject: cranking vs DC battery.

I ran my cranking battery flat, having left some electronics turned on over a 2 week period. When I discovered the problem, I tried to trickle charge the battery. Over 24hr period I got only 8V and the battery would not even crank the engine. I threw a spare Deep Cycle battery in and thought the problem was solved for the duration of the trip. It fired the motor once. The second time the voltage gauge was showing nothing. I carry a portable 12V battery with me on my trips. I hooked it parallel and successfully fired the engine at least three times during a 2 day trip. I am learning DC battery is not a good replacement for a starting battery.

Anything like this happened to you?
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Site Admin

lifeisfun · Joined: 05 Oct 2009 Posts: 12

Get on board smart charger ( one or two bank)
Trickle charger is for maintenance charging only.
The current isn't nearly enough to bring the battery back to life
after deep discharge.

Musky Striker · Posted: Fri Jul 30, 2010 8:37 am Post subject:

oh, is that what it was?

I do have 2 bank on board charger for my 2 x DC batteries.
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Kind Regards,

Site Admin

lifeisfun · Joined: 05 Oct 2009 Posts: 12

That's good, disconnect one bank and connect it to the starting battery and let it fully charge. You can for the future install 2 pole switch so you don't need to swap the connection if it happens again Smile