Tesla 2024.20.7 improves DC Fast Charging for Cybertruck

Tesla has released a new 2024.20.7 firmware for Cybertruck electric pickup truck and it brings DC fast charging improvements for owners.

In April, Drew Baglino, Former SVP of Powertrain and Energy at Tesla announced that Cybertruck will get new charge curve improvements via OTA later this quarter. Baglino also revealed that the new change will unlock up to 154 miles in 15 minutes.

Early reviews posted on Cybertruckownersclub forum suggest that the charge curve has improved but it’s not as exactly what Baglino has promised. Here’s what a Cybertruck owner wrote about this charging improvement:

Tesla Cybertruck Charging Curve Comparison between 2024.14.11 and 2024.20.7 (Image Source – Cybertruckownersclucb)

“The 2024.20.7 curve overall is improved throughout most of the charge curve except from 13%-28% or so. I believe this was due to charge handle temperature as the stall I selected had a hot to the touch handle, which for comparison purposes I am going to assume was just used prior to my arrival so it was already hotter than ideal as I began charging. I didn’t bring a rag and water with me to try to charging handle cooling trick as I wanted to test with as few variables as possible and no hacks to simulate what the average person would see. As you can see, in the curve the charge rate began to recover from the initial dip around 20% SoC and it continue to slowly climb till around the 35% SoC point.

I did not arrive at an extremely low SoC and had what I believe to be a potential charging limit caused by the charging station and not the truck itself. I will try to redo the testing and see if I can do a better comparison, but for now I wanted to get this out to share with everyone. I don’t have any of the required CCS adapters to try 1000V 350kW charging stations, so I’ll leave that testing to others till there are native NACS 1000V chargers near me.”

The user explained that the change in the charge curve may be due to the charge head temperature. Other forum users also gave positive feedback on this charging upgrade.

However, a few complained that certain voice commands were not functional after the 2024.20.7 software release. This may be a glitch for a few users, which may be resolved with the next build.