I've been trying to this on my breadboard hoping to get more current from my lead acid battery of 12V 4Ah and I can't get it to work.. The current draw is much higher when I directly connect it to the battery(about 1.3A) than when it is connected in the circuit(1.07A ~ 1.17A).. I want to amplify the current to suffice the needed optimum input for a 60W Peltier(TEC-12706).. Can you recommend me any other circuit that can output a constant 5A and can supply at least 2~3 60W Peltier.. Thank you in advance.. Any help will be greatly appreciated..
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