Well, I believe my battery may have given up the ghost. Two different chargers show within minutes that the battery is fully charged and then goes to float mode, yet the estart will only turn over maybe a couple of times before it's done cranking. So I'm wondering about both Turntech and Ebatt 2.5 amp batteries. Currently the Ebatt is $80 and the Turntech is $100. Aside from the plastic case that the Turntech comes in, are there any major differences? I don't think I'd need the 5 amp battery as I kick it over when cold anyway. I'm guessing these are pretty similar but don't know. Any charging issues with these batteries either off the bike's system or via a charger that's important to know? The websites state that a regular charger can be used so I'm assuming the circuitry is built in to allow a lithium battery to charge from a normal charger? Hate spending this much on a battery, but would be nice to lose some of that weight.