Sicilian Dragon wrote:
I found a 15 AMP adaptor that converts 220 V AC from mains into 12
DC current at a shop. My question is will this adaptor be able to charge a
140 AH 12 V battery? The shopkeeper doesn't know anything about it. I'm not
concerned about over charging or anything like that just will it charge it?
My understanding is that the voltage from a charger should be slightly
higher than 12 V if it is to be able to charge a battery of 12 V??
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Is the adapter regulated to 12V, or is that the nominal rating? If the
latter, it should work, but I would certainly not leave it connected
unattended. You don't want to come back to find the electrolyte merrily
boiling away. Use a multimeter to measure the voltage out of the thing
open circuit as well as connected to the battery and check it
periodically so it doesn't overcharge.