1.0 link Rainbow Dash Network http://rainbowdash.net/ Cloud Kicker (critialcloudkicker) http://rainbowdash.net/critialcloudkicker http://rainbowdash.net/notice/4227879 @<span class="vcard"><a href="http://rainbowdash.net/user/1089" class="url" title="adiwan"><span class="fn nickname mention">adiwan</span></a></span> Yeah, it is always a bad idea to open up and mess with things you can return to the store. Especially if the draw of your Arduino is so very low that you can probably get somewhere around 700 hours on a 2600 mAh powerbank of 3 Euro. ( not calculating power-loss, and assuming the &quot;F it I will go to sleep&quot; is around 4 mA powerload or under )