Battery post

[beexy]

Hi all. Put a new starter battery in yesterday. However the negative post is a little smaller/thinner than the previous battery. As such the negative terminal is a little loose. Any suggestions to fix

[threedogs]

Sounds right,,,,,, You may need to grab the correct terminal.
What size were the 2 batteries. What do you drive BTW

[the evil twin]

Hi all. Put a new starter battery in yesterday. However the negative post is a little smaller/thinner than the previous battery. As such the negative terminal is a little loose. Any suggestions to fix

Thats because there are a few of different manuf standards around the world for battery compression terminal post sizeing, DIN and JIS to name a couple of common ones.
PIA I know but anyway...
Depending on the terminal you can try running a hacksaw blade down the slot to remove a bit of material so the jaws clamp further or replacing the existing terminal with a correct spec.
There are a few more butcher shop options but none that I would rely on.

[beexy]

Drive a series 3 zd30. Not sure on the the old battery size. It looks like the negative terminal is hard wired for the earth I'm guessing. I thought there may have been adapters to put on the post?

[the evil twin]

"JIS to DIN adapter" is essentially a 2mm thick x 40mm strip of lead wrapped around the post.

[threedogs]

Easy as get down to super cheap and
grab an earth lead the correct size and length
Dont forget to give the terminal posts a rub with
a green scourer, ask permission first eh