While at the motorcycle show, I ran across these new types of batteries that are less than half the weight of the lead acid type, are about half the size for a given amp-hour rating, can last two to four times longer and is not affected by extreme temperatures. They use lithium-iron cells and can directly replace your standard lead acid battery. When I first picked one up, I thought it was just an empty housing for display only, but the guy said it was a complete functional battery. Amazingly light! The only possible downside is that they cost about 50% more. But, if they last twice as long and won't let you down when it's 20 degrees out or 100 degrees out, then they're worth it, in my opinion. I'm very familiar with Lithium-iron batteries due to my job. I made a test pack a while back using a relative to these called Lithium-polymer to try out in my scooter and it starts it with authority! Even though the measured voltage was the same as the standard lead acid, it started the engine as if I was using a 16 volt battery. Oh, and the pack I made-up was just a bit bigger than a pack of cigarettes - the power density of these types of cells is amazing. For those of you who store your scooter for months at a time during the winter months (you poor souls!), these batteries will hold their charge for
at least a year without needing to be recharged. Best of all, they're environmentally friendly because they don't have anything environmentally toxic in them. When they finally die, just make sure they're fully discharged and throw them in the trash.

To give you an idea of their size, that's a standard sized business card in the picture. The smaller of the two is rated for 7aH. I think the standard Buddy battery is 6aH. The bigger one is 14aH and I think it would drop right into my Blur's battery box.
And no, I don't have stock in the company. I just really like these types of batteries and think they will solve a lot of people's battery issues.
www.shoraipower.com
Some people can break a crowbar in a sandbox.