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Main Area => Odds n Ends => Topic started by: mach1 on April 24, 2009, 09:25:25 PM

Title: battery charger question
Post by: mach1 on April 24, 2009, 09:25:25 PM
I have a universal power supply it goes from 3v upto 12v it goes from ac to ac or ac to dc. I have a 7.2v battery ans the power msupply has 7.2v settings can i cut off the 9v hook up that is 2 wires +&- and crimp my male connector to it and charge my battery with that?
Title: Re: battery charger question
Post by: mach1 on April 25, 2009, 10:50:47 AM
Knowone knows if it will work hmmm mmmmkkkkaaayyyyy
Title: Re: battery charger question
Post by: trumpetguy on April 25, 2009, 06:49:42 PM
It's pretty hard to understand what you're trying to do.  Are you charging a 9V battery, a 7.2V battery, or a motorcycle battery?  More info might get a response or two.... :thumb:
Title: Re: battery charger question
Post by: mach1 on April 25, 2009, 08:48:53 PM
its for a 7.2v RC battery
Title: Re: battery charger question
Post by: Paulcet on April 25, 2009, 09:13:50 PM
You will want a resistor in series with your battery so that charging current will be limited.  What is the Ah rating on the battery?
Title: Re: battery charger question
Post by: ke7syv on April 26, 2009, 12:01:37 AM
Hey man, I do RC as well. Are you charging a NiCad or a NiMH? Is this for a starter. You should just hit up Tower hobbies and get a charger for RC stuff. A constant current at 7.2 volts might not be your best option. Most charging units charge on a curve and have peak sensing circuits to ensure a complete charge. I use one charger for my transceiver batteries, receiver battery pack, and the POS EZ-Start battery. I'm into the nitro rigs so I don't mess with Lipos very often. PM me is you ever want any help with RC.  :D