AWS DeepRacer car troubleshooting
Dell battery cable doesn't fit under the shell
Newer batches of DeepRacers come with a Dell hybrid power adapter like this one, but with USB C cable (some versions are being sold with more than one cable attachment). The cable is long and ends with a straight plug which doesn't fit well under the shell. Also the battery is longer and hides the rear USB port.
There aren't any replacement cables available at the moment so wrap the cable and put it under the velcro that holds the battery. For the plug I recommend a 90 degree USB C adapter like this one. Alternatively maybe a USB port on the battery is enough to power the computer on a DeepRacer and a short USB to USB C cable would then be enough. Tests are needed.