Ive had the trick of the week lithium battery pack that ran the car but you started it up from another battery that was complete shit
Then I had the Xs lithium pro's batter Y back in the early day of their business and 1 out of 6 batteries both standard battery size and their half size was complete shit, even bought 3 chargers from the over time, send one back for updates, they were complete shit. Bought a rock battery from ronnie davis and it did fine just heavy as hell and ended up selling it at the track to guy in a bind, Turbo start was ok but you had to keep a freaking charger on it ALL THE TIME. Got a regular sized ago 16v xs battery that has done well no issues. BUT the best to me has been the Braille. I bought RJ's blue camaro from ADRL days and put that original battery in a 4x4 mud rail the other day with 867 fulton and it works as good now as it ever has, and it's only been on the charger twice inn 2 years (took a few cycles to get it fully charged but it spins fine)