Previous versions http://www.whitearmor.net/forum/topic/29534-helmet-electronics-and-external-power-supply-updated/   Generation 4 power supply update 4/12/16     Due to Anker discontinuing the Astro Pro 2 I updated the power supply used to run my helmet electronics. As you may know I also didn’t care for the Anker minimum mA draw required to sustain the output voltages. As good fortune may have it I found a suitable replacement that doesn’t require any special