Ever wanted to stop using crazy amounts of AA batteries for small devices and wanted to plug it in the wall instead? Well then just use this Basic regulator LM2596.
No, I couldn't have used rechargeable batteries, because I don't want to bother recharging them : I already use some for other applications.
The LM2596 Module can regulate an input voltage of 4.5v to 40v into an output voltage of 1.5v to 37v.
-Device you want to mod that uses batteries, in this case, a trimmer
-LM2596 3.33$ DC to DC Step-Down Transformer Module http://www.gearbest.com/development-boards/pp_5101...
-12 volts, 1 or 2 amps output wall adapter
-Welding iron, with electrical rosin core solder
-Sealant for making the handle
-Mini flat head Screwdriver
Step 1: Will It Fit In?
Step 2: Welding, Gluing, Taping
Step 3: Fix the Right Voltage
The right voltage is 1.5 Volts.
Initially it was at 12 V , before the voltage drop (like the adapter's output).
Step 4: Craft the New Handle
DO NOT USE THIS SEALANT. Its too long to dry and it doesn't give a good result.
Apply about 1 cm of sealant around the previously tape covered part.
Let dry for 7 days. Then give it the shape you want.