I am building a robot and i do not want to use a lead acid battery, one because it is so heavy and two because i need a lot of energy in a some what small area. If you dont think the lithiums would do the job can you tell what would do a better job. Also do you know of any cheep hydrogen power stations. Thank you
go to popsci dot com. Check how2.0 ( do it your self thing) I remember seeing a project like that a while ago on making your own batteries, just scroll on the archives, it should not be that old. Good luck on your project!!!
Very Very carefully! Quoting the article below: What happens if a lithium-ion battery is inadvertently overcharged? lithium-ion is designed to operate safely within their normal operating voltage but become unstable if charged to higher voltages. When charging above 4.30V, the cell causes plating of metallic lithium on the anode; the cathode material becomes an oxidizing agent, loses stability and releases oxygen. Overcharging causes the cell to heat up. If left unattended, the cell could vent with flame. Flame is bad! The chargers for lithium-ion and NiMh are magical devices. They require more design then most amatures can provide (myself included). Look for battery and charger combinations on the auction web sites. Good Luck!
