50AH vs 100AH Lithiums for Trolling Motor

[bfowler]

Are y’all running 2 - 12v 50ah or 1 24v 50ah? What is the pros & cons of each?

[rangerguyz21]

Was thinking of lithium for trolling motor but read that it was not safe to charge them when Temps falls under
32 degrees, we fish a lot inthe cold, what do you guys up here in the north do??

[jtracc]

Was thinking of lithium for trolling motor but read that it was not safe to charge them when Temps falls under
32 degrees, we fish a lot inthe cold, what do you guys up here in the north do??

I fished all they way to mid November this past season and had no issues. I can go 2 trips easy during the summer so shorter fall days 8am - 5pm I can get 3 days. When I needed to charged my lithiums I did it mid day when the sun was highest and temps warmer. In the morning the temps dipped to -10 a few times and they works flawlessly.

[00ranger00]

I have a 21ft Ranger Z21 with the 112 Fortrex. I use the Amped Outdoors 36v 60ah lithium battery for my trolling motor. I use them for 10+ hours with rollers on Mille Lacs without any issues

Guys,

I've got a Nitro Z18 with a 24V 80Lb Ultrex. I am am wanting to upgrade to lithiums for 2021 but seem to be on the fence about whether or not 50AH will be enough to take all worries away when I go fishing (not sure I can afford 100AHs). I am 99% sure I will be buying Ionics through Drewtick and when speaking with him a couple weeks ago, he seemed to have some varying opinions on if the 50AH is enough to be truly worry free - really relating down to my style of fishing.

I fish in MN, a handful of 8 hour tourneys a year (5-7), most of my longer days on water would be 12 hours max, most of the time 8-10 on the long days. I consider myself a somewhat fast fisherman but mostly have the TM on 6-7 either on large flats or off shore for most of the summer.

Any guys out there with Ionic 50AH's that have a similar set-up that can give me some real-world feedback on any issues regarding the charge lasting a good long day? Sure appreciate any help.

[yupitsme]

3' rollers???? Looked like a calm day on Toledo Bend to me....

[bobcoy]

The battery will not let you charge below 32f. When you run them they warm up. If you put them on the charger right away they will charge fine. Remember it is the battery temp that needs to be 32 or higher. Not the air temp. A little use will warm them. Bob

[haus9393]

The battery will not let you charge below 32f. When you run them they warm up. If you put them on the charger right away they will charge fine. Remember it is the battery temp that needs to be 32 or higher. Not the air temp. A little use will warm them. Bob

exactly and to add you can charge a lithium well below freezing as long as you don't use more than 10amps. a 2-5amp trickle charge will allow you to charge well below freezing. The colder the cells the slower they need to be charged.

[bobcoy]

I would be hesitant to charge at or below freezing. The BMS should prevent it anyway. The chemistry will fail. While it can be charged if the BMS allows it but the smaller the battery the less it can handle as far as charging. Safe numbers I have seen are like .02C. For a 100Ah battery than means 2 amps. 50 Ah is 1 amp. Be careful with your expensive batteries. Follow what your battery company tells you. Bob

[Dubtee]

Thanks for all the replies fellas, great info and I now feel better with going with the 50's.