Re: power supply / battery system for repeater site The question is... what are we trying to do with the end result? Switch off a device after x-time of non use and/or protect a battery bank from discharge?
Most newer Kenwood Radios I sell have non-use power off timers built right into the programming. Most users don't want to use the function.... seems to be a major issue for them to have to press the power-on button when they get back in the vehicle. And no-one seems to want the ignition key sense wire used anymore. I have a very remote location - solar only radio site with a marginal panel/array charging capacity. In the winter evenings after everyone goes home the site goes to sleep with the Low Voltage Disconnect. In the early morning the site wakes up after a short panel charge restoration (study the re-connect operation of the Newmar LVD) and works the whole day long. No one complains because the repeater is working during business hours and some time past well into the evening before going back to sleep. Spring, Summer, fall and most well lighted winter days find the site receives enough solar charge to stay on 24 hours. And the site operates off common 8D size lead acid truck batteries and has been for a few years. The previous owner couldn't keep the site up/going long term. What started out as an emergency battery bank replacement turns out to work very well long term. The 8D Truck Batteries are so cheap I'll simply replace them after 5 years and be well ahead of the deep-cycle battery cost curve. Sometimes the simple path actually works. cheers, skipp > [EMAIL PROTECTED] wrote: > One could put this behind it: > > http://www.byonics.com/apo3/ > > Bob NO6B > >The power gate is a cute but expensive box... You should be able > >to build the equivalent circuit in a less attractive box for under > >$30 easy. > >The problem with the PWRGate and all the answer/reply posts I've > >seen so far is so far there no mention of a low battery voltage > >disconnect circuit. > > > ><http://www.newmarpower.com/DC_Power_Accessories/DC_Power_Accessories.html>http://www.newmarpower.com/DC_Power_Accessories/DC_Power_Accessories.html > > > >cheers, > >s.
