portable controls w/o using tether

[Pierson]

Originally Posted by eeeeweeezeee

I built an OI power system into our custom operator interface with 3 9v batteries and a jack for wall power. there is even a swich to change modes. our captain, who asisted, will probably post a picture of it later. my project for next year's oi is to make a rechargeable system that autuomaticly transfers. to do this, i need to find a 9.6 volt charger that can support the drain of chargeing a battery and powering an oi at the same time. does anyone know if this has been atempted before?

Am I reading this right? This will essentially be a mini-UPS. That is a really neat idea!

[eeeeweeezeee]

Attached is the OI power system the captain and I made. It has a wall jack for 9v input and the transfer switch is near by. in the lower right corner, three 9v batteries are visible. In my previous post, I mentioned that I was making another one. It's still under construction because I discovered the charge controller I was going to use from a backup battery charger wasn't in use for a good reason (It smelled like a burnt victor and, upon further inspection, I discovered one of the IC's had violently lost half it's mass at some point).