Using Electrical Tape on Negative Battery Terminal

[WanderingSniper]

Hi guys, Quick question to those that know way more than me. I was attaching a Bluetti charger 1 yesterday to help on an upcoming camping trip with my son to charge the power bank I bring with me. When attaching the battery connections (Big thanks to Doc Rok for the advice on letting the truck sit for 30 mins) I found a screw to get the positive attached just fine. On the negative side I found nothing. There was a steel tab though so I attached the device using electrical tape. Everything is working fine but I want to make sure this isn't about to cause a big issue due to current....

 

[TheDocAUS]

Only the positive terminal has the cover.

There is a negative on the battery but remember other parts of the car can act as an earth as well.

It is fine to do what you did. I have done it in the past.

 

[Dokatd]

How exactly did you attach the wire. Is the wire properly terminated with a ring terminal? Are you just using the electrical tape to insulate the connection. You absolutely should never ever ever twist wires and wrap with electrical tape on a vehicle unless it's an emergency repair to get to safety. If you are not familiar with proper auto wiring practices you most certainly need to take it to a professional.

Ground wire terminations generally do not require any insulation.