The traditional 9V battery was designed for devices which needed higher voltage but almost no current. The main use in the old days was the pocket transistor radios and later handheld calculators, which would run for days on one 9V because they drew so little current. Mini4WD cars, on the other hand, have a very high current demand, Plasma Dash is over 5 amps! This causes the voltage to fall with a 9V to the point where its no faster than two 1.5V batteries or maybe even slower. The Lithium one had to shut down because drawing this much current would instantly drain the battery below its lowest recommended state of charge, it may have even burned up with that much load that fast if not for the protection circuit. The reason Neo Champ is so good is that it keeps up with current demand. Even though the voltage at a full state of charge is lower than an alkaline the overall performance of the battery in a Mini4WD car is better for the NeoChamp. (They are also very lightweight batteries).
Thank you for this, i have a vintage astro that i have never gotten to run on a real track because america doesnt have a lot of people who even know about mini4wd and in my part of the country there are no tracks to use. Ive had it since i was about 11 years old (almost 38 now). Its nice to see what it would look like if i ever get to do it, so thank you for making one of my childhood dreams somewhat come true. ❤ (it has a plasma dash motor too if memory serves, or whatever the upgrade model was in the 90s, so it should run fairly close).
from I learned while I was still playing mini4wds, higher ampere battery=faster speed and higher battery=longer run never knew it was irl based on what chemical type of battery used