Recent content by jake9115

  1. J

    Getting correct wattage from lead-acid battery

    Hi, So I have a question that I feel is best suited for people who know much about electricity and circuits. I have a 12V 7Ah sealed lead-acid battery (here, FYI http://www.parts-express.com/pe/showdetl.cfm?Partnumber=140-366). I also have a small stereo amplifier, 12VDC 2A, that is...