If you use a power transformer (120VAC to 12VDC) past its secondary amperage, will it burn up or will it just not supply sufficient power?
If you are wiring the Transformer in parallel with a battery, this MAY work. Be careful to observe POLARITY (+) and (-) this is critical. First of allthe VOLTAGE of the battery and the Transformer must be the SAME.12VDC or thereabouts. If your load (device you are hooking up) draws more Amperes (AMPS) then the Transformer will supply, the battery WILL make up the difference. The problem will come.if you let the battery get too low and the transformer has to do provide more AMPS than it is capable. You could end up burning up the Transformer OR an internal component of the Transformer. To prevent this, place a FUSE in-line with the output (+) of the Transformer that is rated at the same AMPS that the output of the Transformer AMPS. Please put ANOTHER fuse in-line with the output of the Battery/Transformer combo line that is rated just above the AMPS of your Load device. This will protect both your equipment AND the battery AND your Wiring. This has all the earmarks of a learning adventure if done safely.
