Here is a powermaster d3100. It has been used for spl purposes. The battery floats at 13.2 volts for 3 hours after being charged and maintains a float voltage over 13.00 being off the charger for 4-5 days. I have and still taking very good care of this battery. This is how I've trained this battery. I float charge it on a mastech charger at 13.8 volts, the charger regulates amperage. When I am testing my CRX, I charged it at 14.2 volts. Now, this battery has 500+ discharge and recharge cycles. What this means is that you can discharge the battery below 11 volts and recharge back to a charged voltage 500 times before it dies. Since it takes over 100+ burps to equal one discharge and recharge cycle, this battery has about 499+ discharge and recharge cycles left. When I am done testing I float charge it at 13.8 volts. Here are pics. The price for this battery is only $215 shipped. Hopefully someone will be interested.//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif Because of the scratches on the back of the battery, I would give it a 8.5/10 cosmetically, but a 10/10 in perfomance. Check my references. Oh yeah, busbars included!!!
