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For a science project I’m trying to figure out how to collect sound and turn it into electrical energy we can use. So once i collect this energy how can i store it into a battery?

I purchased my truck in january this isn’t type of truck Ot brand of truck argument just a concern. It’s used the guy before me installed a after market head unit it’s an alpine with the iPod cord in the glove box. Once a month my truck battery is dead entirely. The battery is brand [...]

This is a 1800 Goldwing battery

My battery died on me and takes forever to charge. I charged it once with jumper cables and it started up after about 10 minutes of charging off a v6 SUV. The second time I tried to charge it from a V4 hyundai accent, it refused to charge. I need a new battery.. what size/type [...]

What do you do if the Battery of a Charger with keyless entry dies. The car has no keys so how can I get it?

i want to have continious power so i was wondering if this will work or any other ideas plz.

so i have a little rc helicopter and i lost its charger. So (im still in the process of making it solar powered) i took its little lithium battery and cut it open ( its a little bag) and it heated up, very fasy. i could still hold it without it burning but in curious [...]

This pocket bike takes a rechargeable 12V battery just for electric start, lights, horn, etc. . can I plug the bike directly into the wall outlet using a 12V battery charger so that the bike pulls power directly out of the wall? Just to test if my dead battery is the only cause of the [...]

I use a AA lithium battery cell phone charger from Energizer for emergency purposes in case I get stranded and I have no other way to power up my phone. These batteries are pricey so I was tying to find a way to recharge those. I can find rechargers for other types like alkaline or [...]

Hi, I am an auto enthusast & I see promosing future in HEV. I am looking out for some technical assistence in building one. Or if anyone of you could suggest me a dealer/vendor/supplier (in asia) for parts like hybrid engine, batteries, chargers etc.