[ebarker]

If you use the 10 bank tender as previously posted, take care of the batteries ( don't leave them in a hot storage space in the summer ) charge them periodically, etc, you will have plenty of power and never run out. We have about 10 batteries, down from about 12 or 14. We don't anticipate buying batteries anytime soon. But we are going to build a test rig to drain a battery and profile it's performance as it discharges. Sounds like a good use of Labview and a cRio instrumentation station !!