Comments on: Solar Panel arrived for testing. http://solarumpc.com/2007/05/04/solar-panel-arrived-for-testing/ Solar, Ultra-Mobile and Eco-Friendly Computing Tue, 23 Aug 2011 09:30:09 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Chippy http://solarumpc.com/2007/05/04/solar-panel-arrived-for-testing/comment-page-1/#comment-157 Chippy Fri, 11 May 2007 09:13:00 +0000 http://solarcomputing.carrypad.com/2007/05/04/solar-panel-arrived-for-testing/#comment-157 Thats a good question Terje. <br/>It looks like that with this panel, it needs about 2/3 sun power so about 10W 'power' before it kicks in. <br/>That reduces the amount of time for charging to about 6 hours per day. Within that timeframe you need about 5 hours good sun. <br/><br/>The same is true of my AA battery charger although it kicks in at about 50% sun power.<br/><br/>My other worry is floating voltages. I did plug a UMPC direct intot he panel and it started charging (would not run AND charge though.) I'm wondering how much protection there is in the typical UMPC charging circuit.<br/><br/>Steve. Thats a good question Terje.
It looks like that with this panel, it needs about 2/3 sun power so about 10W ‘power’ before it kicks in.
That reduces the amount of time for charging to about 6 hours per day. Within that timeframe you need about 5 hours good sun.

The same is true of my AA battery charger although it kicks in at about 50% sun power.

My other worry is floating voltages. I did plug a UMPC direct intot he panel and it started charging (would not run AND charge though.) I’m wondering how much protection there is in the typical UMPC charging circuit.

Steve.

]]> By: Terje http://solarumpc.com/2007/05/04/solar-panel-arrived-for-testing/comment-page-1/#comment-156 Terje Tue, 08 May 2007 09:36:00 +0000 http://solarcomputing.carrypad.com/2007/05/04/solar-panel-arrived-for-testing/#comment-156 So how many Watts of power does the TabletKiosk PowerBank require before it will begin to charge?<br/><br/>I think this might be an issue for me, some powerbanks require a minimum amount of power before they will charge, and don't allow "trickle charging", I will have to do some more research too... So how many Watts of power does the TabletKiosk PowerBank require before it will begin to charge?

I think this might be an issue for me, some powerbanks require a minimum amount of power before they will charge, and don’t allow “trickle charging”, I will have to do some more research too…

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