A basic single-core mini PC like the original MK802 or CX-01 with their mix of Cortex A8 and A5 SoC CPUs might not cut it against the quad-core flyers we see now, but they still provide low-power computing speed that can be suitable for some outdoor and portable situations.
I’ve built a special USB power rig that allows me to measure the DC current flowing through a USB port and hooking up my MK802, the average boot current was around 320-350mA. By the time the MK802 had completed its boot sequence and was sitting on the Android desktop, the power consumption had dropped to just 170mA – and that include the Wi-Fi powered up.
I then tried my MK808 dual-core mini PC – it used around 350mA, again, during boot up but I’ve modified this one to automatically boot into XBMC and here with the app on-screen, the current draw peaked at 600mA but averaged around 550mA.
I spied this 3.7V/2600mA USB battery pack selling online from banggood.com for just $5.99 but you can find them aplenty on eBay for a similar price.
Given its capacity and current draw of an MK802, there’s potentially enough power in one of these to last up to 11 hours. That’s not bad for a tiny little battery pack not much larger larger than a AA cell.
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