battery charger for my lithium batteries...

[Kyz]

I need to order a battery charger for my 2 230AH Li Time lithium batteries. From the paperwork, it says I need to charge them to 100% before connecting to each other and setting up the solar system. So chances are I will only use this thing twice, once for each battery.

Do I order this (or something like it) 
https://www.amazon.com/dp/B0CF9CNLG1/?co...CYV60VMF8B

or this?
https://www.amazon.com/dp/B0B3CV4S2Y/?co...UEM3KX6RRW

I'm having analysis paralysis...