Spoiler: It's nowhere near 9,000,000mAh!
If you're in the business of repairing PCs, smartphones, or tablets, then you need the tools to help you get the job done in a fast, efficient, and safe way.
Sure, you can spend big money on a PSU tester, but for confirming a dead PSU I find a cheap tester works fine. Also, if you have a few hard drives handy, you can add some load to the PSU by connecting them up before you test. My go-to device is the FrozenCPU tester. It's cheap but reliable and does what it says on the tin for a little over $15.
If you want to take power troubleshooting to the next level then you can get your hands on a decent multimeter. If it's something you're going to use occasionally then a cheap one will do fine, but if you want something that will last you years then I'd go with the Fluke brand. If you don't know how to use a multimeter, then learn how to use one. It is a skill that will change your life.
Caption by: Adrian Kingsley-Hughes
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