i still use my orion 3200 carbon lipos that i bought back in 2006. it was one of the first car specific lipo batts you could buy back then. i still get a full charge (8.4V) and full capacity (3000-3150 mah.. my cutoffs are set to 3.0V/cell) even after 4 years and 400+ cycles. Lipos are a lot safer some make it out to be.