Where in Toronto can I buy small cylindrical rechargeable 3.7V Li-ion batteries like the UltraFire, hopefully at a reasonable price? (or maybe they were 3.6V, I can't recall) [more inside]
I messed up my travel packing, and I now need to buy a charger for a Canon S95 camera battery in St. Petersburg, Russia. Is there any place where I could get one for a reasonable price? I'm staying downtown.
Does leaving my phone's car charger plugged in to the car at all times significantly drain my car's battery? [more inside]
I bought the POWER TOUR Amp and it's really awesome. However I want to modify it and I don't know much at all about electronics. [more inside]
I am charging at least 20, but up to 30 electronic components. Each will draw 300mA at 5-7VDC. What sort of power supply do I need? [more inside]
I need to change the backup battery on my Roland Juno-60 synthesizer. [more inside]