What is the difference
What is the difference between the prolong charger and just a dc power supply like a LPC-100-350? Other than maybe stop charging at some setpoint is there any added functionality? Like is it pulsing crystals away or anything crazy like that? I would like to have a prolong but 700 bucks is silly high when the alternative is less than 100 bucks. I tried to buy one off craigslist to play with but found the replacement harness would cost me 150 bucks for a few wires. Where's the beef?