Hackzilla Posted July 24, 2012 Share Posted July 24, 2012 Hi! Which of these batteries you think best for the mark4? http://www.dealextreme.com/p/ipower-external-5v-3000mah-emergency-power-battery-w-6-charging-adapters-white-silver-131908?item=12 http://www.dealextreme.com/p/1000mah-5-5v-solar-powered-self-recharging-li-ion-battery-2575?item=22 and....someone has a manual to assemble a battery pack for the mark4? I'm not very good at electronics :/ Thanks! Quote Link to comment Share on other sites More sharing options...
sickduck Posted July 24, 2012 Share Posted July 24, 2012 (edited) Battery capacity is measured in milliamp hours (mAh) or amp hours (Ah). 1 Amp = 1000 milliAmps. Basically this means that a 3000mAh can provide 3000mA or 3A for 1 hour or 1000mA or 1A for 3 hours. (It is actually less due to resistance and overhead but its a good ballpark number). The somewhere on this form lists how much current (amps) the pineapple draws. I remember it being something like 700mA for the pineapple only and up to 2500 (I think) for a pineapple with other devices attached to the USB port such as another wifi radio or 3G dongle. So with just the pineapple only the 3000mAh battery should last you theoretically a little over 3 hours. With the pineapple running at full load it may last a little more than 1 hour. I would also suggest a battery with 2 USB outputs so you can power the pineapple and a USB hub at the same time. Make sure one of the outputs is at least a 2A output for best results. Edited July 24, 2012 by sickduck Quote Link to comment Share on other sites More sharing options...
Hackzilla Posted July 25, 2012 Author Share Posted July 25, 2012 thanks, it was very helpful! Quote Link to comment Share on other sites More sharing options...
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