Maths is obviously not your strong suit Rbertalotto so I'll break it down for you...
There are 12 x 3.2v cells in 36v and the money is aussie dollars...AGM shouldnt be discharged below 50% while these LiFeo4 have 100 useable amp hours and the whole 36v battery weighs less then 40kg and was able...
Yes it is expensive here and I have imported goods such as fishing reels,lures a downrigger and various GPS and sonar units from retail outlets in the USA and even paying international delivery with USPS they have often worked out substantially cheaper then purchasing here...
I guess the fact...
I fitted a 36v Motorguide a year back...I made up a battery from these....
https://www.evworks.com.au/calb-ca100
Fitted this battery monitor and 50 amp circuit breaker...
BMV-712 Smart - Victron Energy
We often use it for 2-3 day trips and the most I have ever used is 52 amps....barely...
A civil engineer huh.. :)
If you shop around you can already find them as cheap as AGM's...surely in the ole US of A you might get them even cheaper then poor us in Australia who pay more for everything boating and fishing then you guys..
I saw these on a "Black friday" special last...
I'm beyond help mate..though I do appreciate the sentiment.....The bane of my own existence is the substitution of lose with loose..
In fact when I see people do that I really loose it..!..;)