Thanks guys. Sorry I tried to keep as much business stuff out, but I guess a little too much was left in. I understand completely though, so no problem.

Now to remember what I posted....lol

The battery tenders are a great option for when your battery is not going to be used for extended periods of time. Actually anytime you let your battery drop below 12.6V you can cause damage to the cells. With the smaller batteries like most of the builds on here the battery tenders and ctek battery chargers are pretty good. Just want to make sure the voltage doesn't go above 14.4 volts or 2.4volts per cell.

With the larger batteries the tenders do not work as well, because of the low amperage charge they use. The 2 to 3 amp charge will work fine with the small batteries, but with larger batteries you really want around 15amps of charge. This will give you a good full charge on the battery cells, which will give you longer life of the battery.

As far as the lithium batteries go for these builds I am not sure they make a good fit unless you are trying to cut as much weight as possible. Lithium will run any where from $995 to $1,195 for a battery and cut around 22lbs of weight, but if you are not looking to lose the weight it really doesn't make sense to go with the lithium at this point.