Charger Definition and 106 Threads

Hey, I made a rail gun that is 3" long with a disposible camera's flash charger. The one problem i had was that i couldn't get the spark to jump across the two rails. So i took a piece of metal with plastic on the outside and touched the bolts on opposite sides and got a large spark but not...

Hey. I am not too knowledgeable on this topic so I was wondering if some of the knowledgeable folk here could help me out. Anyways, I have a 12 volt vehicle booster pack which is pretty discharged. There are no ratings on it except for the label that says "ES 2500." I am guessing that the 2500...

I have a car battery charger (for 6 or 12 volt batteries), that I don't know for sure if it works or not. I want to use it for a power supply in an electrolytic cell, so I decided to test it out to see if it worked. When I hook it up and plug it in, nothing happens, the needed doesn't jump on...

hi i wish to build a battery charger using a 3/4hp240voltac motor driving a 55amp car alternator will this work has anyone done this before and will my caravan batteries be oka i have a gen set to drive the electric motor all these questions i hope to be reveled rolly

I have two laptop computers but a car charger for only one of them. The charger says it produces 18.5V 4.9amps. Will this be OK for the other laptop - the specific charger sold by the manufacturer produces 18.5V 2.5amps. Thanks!

I am going to build a small portable 300V capacitor charger. I have a 9<->230V transformer and as a powersource i will use a 9v battery. The thing i do not know is how to convert DC-AC that is needed. I found a circuit where they used a 2N3055 transistor and a resistor but i do not remember...