Put a good charge on it and run it.
If you are not comfortable with that, you could give that battery to me!
Sure, there is a difference in design and purpose, but it will work out just fine.
I have a nearly brand new group 27 deep cycle battery. The boat that I just bought needs a cranking battery. The deep cycle, according to the label has many more CCA than the minimum amount that 115 Yamaha calls for according to the owners manual. It also has a longer reserve than called for.
So I'm not a batteryologist. Is there some reason that a DC battery should not be used as a cranking battery, which will be charged by the boat motor?
Put a good charge on it and run it.
If you are not comfortable with that, you could give that battery to me!
Sure, there is a difference in design and purpose, but it will work out just fine.
Aquadog LIKED above post
I hope not...I used my last one for 6 or 7 years. I now have a dual purpose for cranking.
I hope not, either .... since I'm using a Everstart Marine Group 24 to start my 90hp Merc 2strk, and have been for the last 5yrs. Most times I don't run the big motor a "whole lot" in a days fishing, but when put on the charger it's either already charged back up or only takes a few minutes until it's at full charge. The charger is a MinnKota onboard w/10amps per lead.
My motor recommends having 350CCA (465MCA) ... and this Everstart Marine G24 has 500 Cranking Amps.
I run deep cycles on my ski boat for years with zero issues. Need to change my cranking battery because of age and it will be deep cycle also.
I ran a deep cycle on my tracker because I had a anchormate tied into it. They are called a dual purpose because they will do both
Thanks for all the replies! Feel comfortable running it now that y'all shared your experiences.
sinkermaker, this one isn't labelled as a dual purpose like many are, it's a straight up deep cycle trolling battery.
My DC cranking battery is 9 years old, sticker says '08.
I reckon if it was going to do harm, I would know about it by now.
FurFlyin thanked you for this post
Here's what the "know it all internet" says about that :
Can you use a deep cycle battery as a starting battery?
deep-cycle batteries can be used for engine starting but starting batteries should not be used for deep-cycle applications. A deep-cycle battery may have less cranking amps per pound than a starting battery, but in most cases a deep-cycle battery is still more than adequate for the purpose of starting an engine.
FurFlyin thanked you for this post
My lawn mower has more horsepower than my outboards(s).
Member BS Pro-Staff and Billbob Pro-Staff
Proud Member of Team Geezer... authorized by: billbob and "G"crappiemax, "G" LIKED above post