When servicing a battery with tapered terminal, three necessary tools are:

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When servicing a battery with tapered terminals, you need tools that let you grip, pull the terminal, and spread the clamp so it fits or releases cleanly. A terminal puller is used to detach the terminal from the post without bending or damaging the post or the terminal. A terminal spreader helps widen the clamp safely to slip a new terminal on or to release a tight tapered post. Battery pliers provide a secure grip on the terminal or cable end during removal or repositioning.

Together, these three tools cover the essential steps of removing, adjusting, and installing a tapered-terminal battery connection. The other tool sets lack one or more of these specialized functions: a wrench and screwdriver don’t reliably detach or spread the terminal; a hammer risks damaging parts; and a battery tester, voltmeter, and gloves pertain to testing and safety rather than manipulating the terminal hardware.