I dont think theres a person who regrets buying an icharger. One thing to remember is you will need an external power supply. Honestly, most are just server power supplies "hacked" into being able giving out their full power. Power supplies dont have to be expensive. If your only doing 2s 12v power supply is more than enough. I went with an amazon cheap 12v power supply thats rated for 30amps. Im sure theres losses that dont let me actually get that high but i never had the need to go that high. Also if you're charging two at a time your power is basically "halfed".
power supply