On 01/03/2016 04:17 AM, Manuel Wolfshant wrote: > On 01/03/2016 11:02 AM, Manuel Wolfshant wrote: >> On 01/02/2016 03:12 PM, Andreas Reschke wrote: >>> Am 02.01.2016 um 10:29 schrieb Manuel Wolfshant: >>>> On 01/01/2016 06:27 PM, Andreas Reschke wrote: >>>>> Hi there, >>>>> >>>>> I've build my own webserver (thanks to Robert Moskowitz) with the >>>>> cubietruck. I've bought a LiPo UPS >>>>> (http://www.pollin.de/shop/dt/MTU3NzkyOTk-/Bausaetze_Module/Entwicklerboards/Cubieboard_3_Li_Akku_3_7_V_5_3_Ah.html) >>>>> >>>>> >>>> What you have bought is a 5.3Ah rechargeable battery, not an UPS. >>>> An UPS >>>> has its own electronics. >>> Yes, you're right. It's my mistake. >>> >>> Does an UPS exist for the cubietruck? All I've found is only this >>> battery or handmade batteries. >> Any regular UPS ( which has a 220V output ) can power a power adapter >> similar to >> http://www.cubietruck.com/products/universal-power-adapter-5v-2a-for-cubieboard-cubietruck-cubieboard2 >> If you want to use an UPS but without chaining its output to a power >> adapter, you could use something similar to >> http://www.alibaba.com/product-detail/5V-9V12V-24V-Lithium-Battery-DC_60375419563.html >> Just ask google about "UPS 5V 2A". > Actually you could use any regular "power bank" connected on one side > to the regular power adapter and on the other side to the CT. As long > as the power grid is OK, it will keep the power bank charged. Once > there is no 220V voltage on its input the power bank will > automatically start using its internal battery in order to power your CT. But then there is no indication that the CT is on battery, when it is getting low to power off. I was thinking about this... Start by installing Fedora23 with your favorite GUI that has battery power management. I use Xfce. See if it recognizes your battery and provides the standard battery management. Try running the battery down and does it power off appropriately? This will give us a better understanding of the CT battery connection and what can be done with it. Then how to do that in Centos without the GUI. Or get a standard UPS that has a USB management port and use the standard UPS management tools.