A lithium battery is made up of cells with charge control balancing circuits built inside the pack joining the cells
Lithium batteries are constructed different than FLA or AGMS
As far as 48v
He did not want to go that way, not his first choice
He wanted FOUR lithium 12v batteries
He was told he could not parallel them , they would not be balanced properly charging/ discharging ?
To get the same amount of amp hrs power he would need to go with a 48v lithium pack
If he built his own 12 pack, or had it built by a specialty shop
He could get one 12v battery pack the same power and size as the 48v pack
He is looking at a 150 amp hr 48v pack
What he really wanted was around 500>600 amp hr 12v battery pack aka (4)
12v
But Lth needs to be built as one battery at the total desired size
With all the balance board controls inside the package