I'm upgrading my Battleborn 100Ah battery, but didn't want to leave the terminals bare while in storage or transportation (selling it to someone else) in case of accidental shorting, so I made these covers which slip on and have a little wedge to hold them firmly in place, but if you grasp them on the short sides and pull, it'll slide right off. 

Printed in PLA, open side upwards, no supports, 0.4mm nozzle.