# How-to: Hook Up a Battery Properly

**URL:** https://forums.speedlife.net/t/how-to-hook-up-a-battery-properly/80445
**Category:** SON240sx Automotive
**Created:** [January 12, 2004, 12:25pm UTC](https://forums.speedlife.net/t/how-to-hook-up-a-battery-properly/80445 "2004-01-12T12:25:05Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![SHIFT\_KA24DET](https://avatars.discourse-cdn.com/v4/letter/s/b9bd4f/32.png) [@SHIFT\_KA24DET](https://forums.speedlife.net/u/SHIFT_KA24DET)
#### Post date: [January 12, 2004, 12:25pm UTC](https://forums.speedlife.net/t/how-to-hook-up-a-battery-properly/80445/1 "2004-01-12T12:25:05Z")

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When disconnecting a battery from a vehicle you make sure you disconnect the Negative first and the Positive Second because if you were to disconnect the Positive First you run the risk of arcing the wrench/ratchet to a grounded point (i.e.: Fender, Valve cover etc.) and causing the battery to explode and do some serious damage to your electrical system and most importantly yourself. When re-connecting a battery make sure to connect the Positive First and the Negative Second for the exact same reason.

Remember:

Disconnecting = Negative 1st Positive 2nd  
Re-connecting = Positive 1st Negative 2nd