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Minn Kota 315D charger question #11726472 07/16/16 10:36 PM
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fe1 Offline OP
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Can different type 12 volt batteries, lead acid and agm batteries be charged simultaneously on a MK 315D charger?

Last edited by fe1; 07/17/16 12:21 AM.
Re: Minn Kota 315D charger question [Re: fe1] #11726727 07/17/16 01:52 AM
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Bobby Milam Offline
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As long as the type of battery is approved for use with the charger, it shouldn't matter. It reads the charge in each battery and charges them individually.

Re: Minn Kota 315D charger question [Re: fe1] #11726772 07/17/16 02:30 AM
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The charger won't get past the absorption mode on the agm (flashing yellow) battery . A battery test showed good and has 925 cca. I don't have a owners manual for the charger so I don't know if the two are compatible.The agm battery is a heavy duty Exide Road Force I wanted to use as a startling battery although it's not a deep cycle battery.

Last edited by fe1; 07/17/16 02:36 AM.
Re: Minn Kota 315D charger question [Re: fe1] #11726825 07/17/16 03:05 AM
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bronco71 Online Content
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You can download the manual from this page:
MK315D manual


1987 Nitro MX185/Mercury Black Max 150
1999 Triton TX21/225 Mercury Optimax
Re: Minn Kota 315D charger question [Re: bronco71] #11726835 07/17/16 03:10 AM
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fe1 Offline OP
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Originally Posted By: bronco71
You can download the manual from this page:
MK315D manual


Yes I read it entirely but nothing helpful was in it

Re: Minn Kota 315D charger question [Re: fe1] #11726851 07/17/16 03:23 AM
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bronco71 Online Content
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They can be charged at the same time, hooked up to seperate banks. They most likely will not come to full charge at the same time due to different rates of discharge, battery size etc. Some of my batteries take hours longer to charge than others. If you leave that one hooked up and it doesn't ever come to full charge switch charging banks and try it, if it comes to full charge the other bank is bad. If it doesn't come to full charge take it to auto store to load test it....


1987 Nitro MX185/Mercury Black Max 150
1999 Triton TX21/225 Mercury Optimax
Re: Minn Kota 315D charger question [Re: bronco71] #11726877 07/17/16 03:43 AM
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Already done all you mentioned. I charged it for about 12 hrs and switched banks and nothing changed. I also had a lead acid battery on and swapped it with the banks on the agm and it charged on both banks.I did notice the agm battery was pretty warm.

Re: Minn Kota 315D charger question [Re: fe1] #11727595 07/17/16 08:14 PM
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Update; The agm battery finally took a full charge from the MK315D charger. I did learn that agm batteries take longer to charge than lead acid batteries.

Re: Minn Kota 315D charger question [Re: fe1] #11727691 07/17/16 09:53 PM
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bronco71 Online Content
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excellent!


1987 Nitro MX185/Mercury Black Max 150
1999 Triton TX21/225 Mercury Optimax
Re: Minn Kota 315D charger question [Re: fe1] #11728763 07/18/16 04:52 PM
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Txmedic033 Offline
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That is an excellent charger. I have the same model.

Re: Minn Kota 315D charger question [Re: Txmedic033] #11731350 07/19/16 11:56 PM
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fe1 Offline OP
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Originally Posted By: Txmedic033
That is an excellent charger. I have the same model.

Txmedic033 I got this charger from you a while back. Just got around to installing it.
I thought you got a 4 bank or ???

Re: Minn Kota 315D charger question [Re: fe1] #11735666 07/22/16 02:50 AM
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Txmedic033 Offline
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I meant to say had the same model. I forgot you were the one that bought it. blush

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