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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by Otter[/i] [br]I would like to modify a 12V 20A power source designed for two-way radios and use it as a 12V battery charger for automotive type lead acid batteries. Problem is, there's no built in regulator in my power source. It's designed to deliver power at a steady rate. This would boil over a lead acid battery were the device to be left "on" after the battery had achieved maximum charge. Someone even told me it would damage the plates in the battery. Any suggestions? I'm a novice at electronics but I have to think there a simple way to automatically control output amperage/voltage from my power source as needed by the battery. [/quote]    Insert an Image File (GIF, JPG, JPEG, BMP, ZIP, PNG) Check here to include your profile signature.