Cranking battery

[ditchdoc666]

Any one ever used the interstate 29DC for starting battery and all accessories ? Has 840 MCA and 210 RC and it will be turning a 150 XR2 Merc after 5 hours my electronics are showing low volts but motor starts
fine,thanks for the help, not interested in AGM as charger wont charge them I thing ,older dual pro

 

[Smalliefan2]

I would touch base with Dual Pro first. My 13 year old charges AGM batteries. Visited wit Dual Pro at Knoxville show, rep said it would work fine, it does.

 

[Justfishin]

My unit reads low voltage also. I took the battery an had it checked. It had over 12 volts after using it all day. I think I have to much pulling on one wire. I haven’t checked it yet

 

[ditchdoc666]

Have emailed them but haven’t heard back yet,thanks

 

[Pop-R]

if you have electronics hooked to that battery also generally you will have them shutting off when you crank the engine. I had that same battery and it was doing that. I replaced it and it stopped. Surprisingly the batter still showed good and I put it on my brother-in-laws small boat and it is running his trolling motor fine.

 

[jbh3]

Doc, if your Merc engine uses stators vice an alternator an AGM battery may not be your best choice anyway. You might look at the big wet cell commercial battery at NAPA - https://www.napaonline.com/en/p/NBP7237. As stated above, the older Dual Pro's with 15 amps per bank do fine with AGM's.

 

[Fshn Cpa]

My electronics used to shut off sometimes when I started the big engine. Ran wires direct from the units to the starting battery, no more problem

 

[zack1a2]

If you are not using the electronics, the standby sure helps on battery power to...

 

[Oldman]

go to wally world and get a 29 max.they have three year warranty now and they will run everything.99 bucks.

 

[ditchdoc666]

Larry,is the 29maxx running everything all day with pumps and lights for night fishing?