NOTE: We have decided that as of February 2012, the two brands of Lithium batteries we have tested to date are not ready for full time use in RVs. The problem to be overcome is what the Lithium battery manufacturers recommend for charging. They want the batteries charged to 14.6 volts and left there until the charging amperage tapers off to something like 1 or 2% of battery amp-hour capacity. Then they want all charging to stop ... they do not advocate a "Float" charge. This is NOT how RVs operate. We need to maintain a float voltage to power the 12 volt lights, fans, pumps, etc. AFTER the batteries are fully charged so that we can go into the night with full batteries.

 

There are many battery companies working on these issues and we will resume our RV centered tests when those companies have solved some of the problems. MEanwhile, we will leave these test results open for others to read.