I bought a 3 amp power supply today,my transciever needs 7 amps.What would happen if I connected it in parallel to a battery?
Printable View
I bought a 3 amp power supply today,my transciever needs 7 amps.What would happen if I connected it in parallel to a battery?
The same thing mine did, charge the battery. My first power supply was one of those puny supplies and a car battery, it worked.
At three amps, I'd worry a bit about it overcharging the battery if left on for long periods of time. If you're only going to turn it on while you're using it, though, you should be okay.
Do it, but add a charging regulator between the battery and supply.
Thanks,I bought it for my son in law for temp use.He is taking his tech exam tuesday.
Or build your own!
http://www.parc.org.za/attachments/p...ar Charger.PDF
http://rysiny.ovh.org/elektronika/Sh...is_Greacen.pdf
If nothing else, this one is a good read and can get some thought juices flowing.
http://www.freemansgarage.com/wind.html
And off topic, but I found it interesting:
http://www.i4at.org/surv/tow02077.htm
It could just charge the battery, fry the battery or fry the PSU.
It depends on the size and type of battery. If it is a deeply discharged AGM battery for example it will fry the power supply for sure (or trip its overcurrent mechanism, or blow the fuse).