My 47ft Monohull sailboat is about 15 tonnes, and motors at 7kts with a 40hp diesel, I thinkyour weight looks low and power looks like overkill unless it's a planing hull. If you need 96v then buid the biggest 96v Lifepo4 bank you can, then build another 12v lifepo4 bank that can power all...
agm's a re a terrible idea for electric propulsion, 300 cycles? that's one year
i Mix 1045ah of AGM at 12v and 2kw of lithium also at 12v on a sailboat because I can't risk a BMS failure killing all communications, navigation, nav lights etc, and I have that amount of storage because I like to...
the wakespeed installs I've seen are in the $10k+ range, balmar, you can get the alternator and and the programmable remote diode's which run much cooler and offer soft start, reduced power consumption features for under $2k typically, I did take a look at some of the chinese battery extenders...
typical cruising sailboats have tiny engines, in my case a 40hp perkins in one boat and a 50hp Yanmar in another. Assumingyou've converted to a double pulley oy serpentine belt to drive a 150a or 250a aletrnator, also consider that it will tale between 10 to 20hp to drive those alternators...
On a sailboat, off grid mostly I have;
six fullriver 2v AGM in series for 12v
16 280ah eve cells in 4s4p with overkill 120 BMS 12v
six 330w solar on an aluminum fabricated hard top 3s2p 120v dc
two midnite solar classic 150's each 150v 100a
I programmed the MPPT controllers for the AGM's years...
I have 2kw of rigid solar permanently installed and an additional 1kw of flex panels attached to a canvas that can be rolled out at anchor
2 midnite solar classic 150's MPPT's
6x 2v Blueriver 1150ah AGM's in series for a 12v bank
the system has run flawlessly for two years now since I first...