li-ion for your roomba
posted Mar 15th 2008 10:52pm by Will O'Brienfiled under: misc hacks, robots hacks

[gim] gutted some li-ion laptop batteries to replace his roomba’s battery pack. He had to pick up a li-ion charger and add a protection circuit to deal with the li-ion cells, but ended up with a new lighter pack for his roomba. If you head this way, the protection circuit is a vital component to prevent fires/explisions/etc. Looks like a great resource for robot power or even R/C projects.





The common way to do this, because it’s not a new thing for Roomba owners, is to use a bunch of mobile-phone power-packs. Then yo get the protection-circuit built in and can use the normal charger.
Complete kits for this is regularly sold on ebay for about half the price of a new battery.
Posted at 2:38 am on Mar 16th, 2008 by Dowser