Blake, Thank you, I think I'll buy a Battery Bunker ( http://www.batterybunker.com/index.php?page=products ) since I also have two Lithium Polymer batteries that I've been using to power my various breadboard circuits. The charger I mention below is specifically made for LiPo and Li-Ion batteries.
I'll look over Digikey in the morning. My problem is, I don't know what to call these tiny 3-wire connectors. Worse yet, I don't know Digi-Key search engine speak. And worst of all, I'm not an electrical engineer...I'm just an assembly language programmer struggling to understand circuits...but I sure like playing with them! Thanks Bob Blake Leverett wrote: > I don't know where you can buy the connector - try Digikey first - but I will > caution you to be VERY careful with Li-ion batteries. Many people have > burned down their houses, cars, and garages messing with these things. > > LiIon batteries are pretty safe, until you damage it (drop it or accidentally > poke it). I have a friend who accidentally punctured one with a screwdriver, > and it caused a fire he could not put out - water only made it worse. > Luckily it was in a sink and he finally got a fire extinguisher to put it > out. > > Also, charging the battery incorrectly is very likely to cause a fire. Make > sure you use a LiIon charger, and don't leave it charging unattended. > > The RC community (guys playing with model planes and cars) have learned that > the only safe place for an unattended LiIon battery is in a fire-proof > container, like a bucket of sand, with the batteries under half the sand. No > > kidding. > > I know that your laptop and cellphone have a LiIon battery and they are very > safe. But having one on the bench running around loose, and being manually > charged, is a potentially dangerous situation. > > See these pages for some pictures: > http://www.rcgroups.com/forums/showthread.php?t=140641 > http://www.laureanno.com/RC/fire-pics.htm > > Sorry to be so pushy about this, but most EE's don't know how dangerous these > things can be. So just be careful, and don't leave it sitting around on a > wooden table while it charges. > > Blake > > On Friday 28 March 2008, Robert L Cochran wrote: > >> Since Joerg advised me to try powering my ATMega644 circuit with a 3.6v >> battery, I found one in an old Sony Ericsson cell phone. It is a Power >> Products rechargeable battery. It is small, square, there is some sort >> of dark wrapping around it, and on the left side is a very small white >> plastic, 3-wire connector with black, blue, and red wires. The blue wire >> is the center one. The print on the battery is partly rubbed out but >> "Ericsson T60/61" is still legible. The phone is a model T61c. There is >> no voltage printed on the battery label. >> >> I think I can charge this battery with my Pro-Peak Prodigy II charger, >> if only I can find the right connectors for the battery. And that is my >> question. Where can I find connectors that would make this battery >> useful on charger and/or breadboard circuit? The charger should be able >> to get the voltage and current rating from the battery's circuit board, >> right? >> >> Thanks >> >> Bob Cochran >> Greenbelt, Maryland, USA >> > > > _______________________________________________ > AVR-chat mailing list > AVR-chat@nongnu.org > http://lists.nongnu.org/mailman/listinfo/avr-chat > > > _______________________________________________ AVR-chat mailing list AVR-chat@nongnu.org http://lists.nongnu.org/mailman/listinfo/avr-chat
