Considering re-rigging cranking and electronics batteries...looking for help

I have a Vexus VX20, Merc 250 4 stroke and Ghost TM. I run 1 Solix 12, and 3 HDS 12 live graphs plus Active target.
Currently I have group 31 AGM for cranking, a dedicated Ionic 125ah for electronics and 3 AGMs for trolling.

I would like to have the boat set up so I can fish 2 days without recharging on some small lakes where I won't be running the big motor very much. I won't always have a place to plug in overnight.

With the 125ah Ionic I can't get through 2 days without running it down since it doesn't get recharged at all on the water.

I'm thinking of going to either 2 AGMS in parallel or possibly 2 lithiums in parallel for cranking and electronics and 3 100ah lithium trollers.

For those running parallel cranking and electronics batteries what are you using and how long can you go between charging?

FYI I have a 5 bank Minn Kota charger in the garage I'd be installing. I currently have a 4 bank Minn Kota and a 1 bank Noco installed.
Thanks for the help.

Check out the Blue Sea Add-A-Battery. It'll put some charge into your electronics battery when you are running on the big motor.

https://www.bluesea.com/products/765...Kit_-_120A/FAQ

Another option would be the Dakota Lithium 280Ah cranker that could replace your current cranker and dedicated electronics battery.

I have 2 cranking lithiums. 1 relion hp 100ah and an ionic 125ah in parallel. I can fish 2 days without charging if I needed to. Realistic number of hours for me which is console units on standby when fishing and 3 bow graphs running full time I can usually get 20 ish hours depending on how much I run my outboard. Earlier this season the place I was staying at tripped the breaker after a 12ish hour day of practice. I was down to like 60% on my ionic cranking and I fished another 12 hour day no issue. Very good peace of mind knowing my fishing was not affected by a crap outlet.

Thanks. I've had the circuit breaker trip at my boat storage and run into the same problem...

The Blue Seas ACR will not work with Lithium batteries.

Probably best to add another Ionic 125ah in parallel. They are going for a great price right now even without the BBC discount.

There are quite a few people who just run a lithium and AGM in parallel with excellent results as well. Might be worth looking in to.

I have two 125ah Ionics parallel for cranking and electronics and three 100ah for the Ultrex. I also have the MK-550 5 bank charger.

Even with my power hungry Apex units I have power for days on one charge.

Quote:

---

Originally Posted by haus9393

I have 2 cranking lithiums. 1 relion hp 100ah and an ionic 125ah in parallel. I can fish 2 days without charging if I needed to. Realistic number of hours for me which is console units on standby when fishing and 3 bow graphs running full time I can usually get 20 ish hours depending on how much I run my outboard. Earlier this season the place I was staying at tripped the breaker after a 12ish hour day of practice. I was down to like 60% on my ionic cranking and I fished another 12 hour day no issue. Very good peace of mind knowing my fishing was not affected by a crap outlet.

---

I also have a Relion 100hp and recently put a Ionic 125 to help. I put a battery selector switch (1/2) and put the newer 125 Ionic as battery 1, the 100hp as battery 2. I honestly haven't put it through the toughest/ longest test, but I feel I could go multiple days without charging them. For the record, I have 2 Humminbird Gen2 Mega units and 2 106sv Garmin units w/ livescope.