We do some serious testing (including 500 amp load tests!), measurements and comparisons between SMC's SRD (Speed Run Drag Series) 4s drag race pack, Zeee's 9,000mah 4s pack and a pack I put together using 6 Lishen LTO 18ah cells. Please consider helping me pay for this stuff through Youtube's Super Thanks (Heart with the "$" symbol above) or Patreon:   / alexltdlx  

AC Internal Resistance Tester: https://amzn.to/3nN8Q97

SMC Internal Resistance Tester: https://www.smc-racing.com/index.php?...

SMC SRD Pack: https://www.smc-racing.com/index.php?...