- Joined Sep 11, 2021
Hello. If i build a curcuit that has a 12 volt 4 amp adapter (which internally is just a 120 to 12 volt step down transformer and a diode) plugged into mains and on the output of the 12 volt adapter i hooked up positive to positive and negative to negative on a 12 volt 1 amp-hour rechargeable battery, and then from the battery positive to a 12 volt light positive and from the battery negative to the light bulb negative. (It could be an incandescent 12 volt light, i just wanted to be clear on wiring). The question is, will the battery get damaged from having current constantly flowing from the power adapter to it then to the light bulb? The purpose of the circuit is in the event of a power outage, the light would remain on until the battery dies or power gets restored. I attached a real basic drawing of the circuit for clarity.
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