36V Lithium on Ultrex? and what lithium for Electronics?

[eastcoastbassn]

I recently purchased a 2018 521, 1)It has a 112 Ultrex w 3 AGM batteries. Im looking for feedback, if replacing the 3 AGM's with 1 36V Lithium. If you have done this whats your feed back. and 2) It has a 12' Garmin livescope and HB Solix 12 on bow and Solix 15 on console. The issue is after only a couple of hours the battery is dead, ( Its running off the crankin battery) What would you use if putting the Units on their own lithium. I appreciate the feedback

[Diesel Pro]

I run for hours on end with my Ulterra at 36v motor trolling. Prop speed varies from 5.5-7.5 depending on conditions. With 3) 100ah Ionics I use approx 10-12% per hour under these loads. I would suggest 3 batteries for charging simplicity. Go with a 125ah ionic for the electronics.

[1BADAIR]

Using 1 36v is a bad idea . Three 12’s or two 36’s. If a 36 dies you are dead in the water

[84rickygreen]

You should also consider an onboard charging system. Stealth1 is a great unit.

[KandKKustomz]

I would check out Impulse Lithium, solid battery and they have a strong Pro Staff backing the product!

lowest pricing on Impulse on BBC @kandkkustomz

[Bstandiford]

Using 1 36v is a bad idea . Three 12’s or two 36’s. If a 36 dies you are dead in the water

This!

[Whiteboat]

Using 1 36v is a bad idea . Three 12’s or two 36’s. If a 36 dies you are dead in the water

This comment is dead on point. I purchased three 12v Relion lithiums for the TM. My thought process was if one battery goes bad while away from home, I can drop in a wet cell battery as a temp fix.

The only reason I would consider a single 36v is if storage space is at a premium