| Posted on 02:06:00 16/06/04 By Synergy | I fly electric r/c planes and I can't help but notice that apart from the sony info-lithium sources used here, old battery technology is being used. Like packs of 3000mah cells are not very portabl! What we want are the new lithium polymer cells that can provide currents up to 10 times their rated capacity which is more than enough (well maybe not a dreamcast?)for our needs. These cells have thin casing and are themselves very thin and LIGHT with very high capacities. see here: http://aircraft-world.com/shopdisplayproducts.asp?id=84&cat=battery+%2D+lithium+polymer These aren't cheap and you'll need a dedicated charger to prevent the cells from rupturing or catching on fire. You need to be very careful with how you look after these things, but the new generation of cells are much safer than they used to be. There are other sources on the web if you do a search e.g http://www.thunderpower-batteries.com/html/batteries.html Hope this rant helps, Pete:) |
| Posted on 11:06:00 16/06/04 By gannon | Yeah, a few people have used them, but they're a lot more expensive than most of the other solutions. I'm going to be using li-poly batteries, but I need to save up the $350 to buy the batteries and charger still. |
| Posted on 04:06:00 17/06/04 By Synergy | that's a lot of money to spend, you can get a low-end charger for $50 (high-end $120) and a battery for ~$50.tho you may need to link some batts in parallel to get the capacity you want. oh and one cell is 3.6v, so two in series gives you over 7.2v as these hold their voltage better than nicad's or nimh's, which is a great voltage for psp's. should be able to cram a few thousand more mAh into your project case with these. Pete:) |
| Posted on 12:06:00 18/06/04 By gannon | Yeah, I'm going to make a 14.8V 8.8A pack for my ps2. Also, I'm going for a high end charger since it can charge that big of a pack in less than 2 hours. |