Hooking Up Your Emergency Power Station

There are many ways to hook up your emergency power station.

You must first identify how much power you will be drawing and for how long. Typical draw from a medium power mobile transceiver is less than 10 amps on transmit and usually less than one amp on receive. And even then, you are not drawing that much continuously. A duty cycle is typically less than 10% meaning 6 minutes transmitting and 54 minutes receiving. If you use the management system for 5V USB loads, you will need to build those numbers into your calculations.

Power management is very important. If you need continuous 12 volts for your radios you need to have a way of keeping the battery fully charged and not overcharged. Also if your power fails and you continuously draw power from the battery, you need a means of eventually disconnecting the battery to prevent a deep discharge which could damage the battery.

Note: This page references to a storage battery as 12 volts. Actually a fully charging battery is closer to 13.7 volts and when idle is 12.70 volts. A battery at exactly 12.0 volts is almost 60% discharged but we will still refer to these batteries as 12 volt batteries.

We will now discuss a suggested way of hooking up your emergency power station. Please study this page first which will get you up to speed. The Gofort unit shown on top page will work for light duty use, less than 3 amps at 12 volts but a good dual band mobile may draw up to 10 amps which will swamp the unit. It may not be able to stay on with only a small amount of current being drawn too.

If using a large capacity battery it would be a good idea to study this page.

The EpicPWRgate is probably the best discrete configuration for a high power emergency power station. The heart of this can be ordered here.

 

If you want a lower price option you can build one from scratch using the block diagram below.

 

 

Copyright 2021 Rick C. Ver 0.03 Dec 31, 2021