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Location: 31 | Re the main topic:
My boat originally came with two crank batteries, 1 for the big motor and 1 for the kicker. I decided to go with just 1 group 31 dual-purpose for both motors, mainly for cost and weight, but also because I run the same type of on the water charger. The one I'm using is called a Stealth 1... same concept though.
To fully explain; the way it works is after the crank battery is fully charged the Stealth 1 redirects the boats alternator charge to the trolling motor batteries (24 or 36) to help recharge and maintain them. Even if you always have A/C power available at night to re-charge the electric motor batteries, they will not get as worn down if you do a fair amount of running, and theoretically the batteries will last longer... 25% less discharge sounds about right for a full day of casting on LOTW.
If you have ever run out of battery power toward the end of the day, one of these type of chargers will probably solve the problem. I've used this same Stealth 1 charger on my last two boats (maybe 8-9 years?), and it has worked flawlessly for me both on and off the water… I would never own a fishing boat without one now.
Another plus with this system is that when you get home from a typical weekend trip you can just plug in any charger at the 12 V crank battery and know that all batteries will be fully charged for next weekend.
I currently run a 6 amp on-board AC charger and simply it plug-in between trips to recharge all batteries, the Steath 1 redirected the AC charge same as the boats alternator charge. The puny little 6 AMP charger I use basically trickle charges the 36 V batteries once the crank battery is charged.
I also have a separate on board 15 AMP AC 36 V charger I can plug in to quickly recharge the electric motor batteries when needed. | |
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