Post or comment about your must have electronic gismo! 1) I might have mentioned this somewhere before but I've come to greatly depend on then I sound rechargeable battery . I have the 16,000 Mah version. There are lower end version for cheaper from the same company brand. It's charged several mobile phones that were running low or out of juice and my Samsug Galaxy Tablet. Although for the tablet, it has to be charged whilst in the off mode. I have seen some knock off alternative version (different brands) coming out of China for higher mAH (50 /60,000)- but seems highly dubious and fishy at the moment. Also if you purchase the Isound rechargeable battery, do it from Amazon. They have the best value price I've seen thus-far. 2) Just purchased the Renu It Delux Battery Regnerator. This is a household battery recharger, just received today, allows you to recharge almost all type of battery's (not just rechargeable ones) that we all have at our homes. Tried it out today and it charged nearly dead batters that I had lying around. So no more - woops battery is dead need to go to the store to buy new ones. So if you guys have any of these or similar, nifty must haves - feel free to comment or post. Links updated 2016.