DIY Capacitor Discharge Tool

If you’re a beginner electronics hobbyist you know that the capacitors on most battery-operated objects aren’t powerful enough to kill you but can still provide a painful jolt of electricity if not discharged before removing from a circuit board. Build a capacitor discharge tool using a resistor, two pieces of 12AWG wire or larger and heat shrink tubing.

This design comes from online repair database iFixit who uses it on their well known device teardowns. Solder the wire to each end of a resistor designed for moderate current demands (at least 2k Ω 5W and possibly more depending on what you’re discharging) and add heat shrink tubing to cover the connections.

Full step-by-step instructions and photos can be found at the source link below. If you’re not sure you’re using a resistor or wire that’s heavy duty enough for your application make sure you consult with a professional.

Technique: Constructing a Capacitor Discharge Tool [iFixit]


The Cheapest NBN 50 Plans

Here are the cheapest plans available for Australia’s most popular NBN speed tier.

At Lifehacker, we independently select and write about stuff we love and think you'll like too. We have affiliate and advertising partnerships, which means we may collect a share of sales or other compensation from the links on this page. BTW – prices are accurate and items in stock at the time of posting.

Comments


2 responses to “DIY Capacitor Discharge Tool”

Leave a Reply