Wefomey 72W Power Supply Adjustable DC 3V ~ 24V Variable Universal Switching AC/DC Adapter 100V-240V AC to DC Converter with 14 Tips & Polarity Converter, for 3V to 24V Household Electronics - 3000mA

it works to charge many things and powers my handheld Singer Sewing Machine; fits factory snug!

Works good but use with caution. You could easily and instantly damage expensive electronics because voltage is variable and it's easy to accidentally change with a light touch of the control knob. I recommend using a meter to confirm the voltage before plugging anything in and then carefully put the control in a place where it will not fall or be disturbed.

This thing should be in very household. If you have many electronic devices like I do, occasionally one stops working or charging. Having a versatile and adjustable power supply is a must for troubleshooting and getting a device going while you order a replacement power supply. It has many connects sizes that should fit almost every need.I will give you one WARNING. The device comes with a six-inch extension output cord that seems to have no use and does not state what it is for. Well, what it does is reverses polarity, so you should never use this unless you are sure your device has the positive power on the outside of the connector, which is very rare. Reversing polarity may fry your device! It's nice they included it, but there should be a big red label affixed to it that states what it does.I dinged it a star because the voltage potentiometer (adjustment knob), is way to sensitive and its hard to set the voltage exactly, There are no detents or click in spots for the voltages so you have to fiddle with it and hope the knob doesn't get bumped to a different voltage during regular use.Other than that, it's a keeper.

I am using this handy power supply for laptops, charging lithium batteries, restoring dead batteries, and generally solving my power supply problems. I cannot review reliability because I only used it one time. I find the voltage control to be precise and steady, unlike other reviewers. I recommend this unit for anyone wanting an inexpensive and adjustable power supply.

This is a great little power supply for providing various voltages to random devices you lost the charger to. I found a used camcorder at Goodwill for $5 that didn't have a power supply. I only needed it for a few weeks while I converted old family videos from High8 to digital. This had the right size barrel connector to swap into it and I dialed in the correct voltage for the camcorder. No muss. No fuss. Completed my project and now I can donate the camera back to Goodwill for someone else to use (but keep this little beauty around).One thing of note that I wish they'd improve, however: The dial is SUPER touchy. I'm talking "breath on it and it'll jump by .1V" kind of touchy. I highly recommend dialing in the voltage BEFORE you attach it to anything, as the sweep is very fast and very twitchy until you dial it in.