Help with constant failing battery - P3000-123, P0A80

I want to thank you all. I have read a common complaint about these threads is usually the poster does not have the courtesy to do a final update, just letting them die and leaving everyone wondering if there was a final resolution.
So this is what has happened.
The company told me that they thought that the inverter was possibly having problems causing the battery failures. They started looking at the whole charging system and found the 3 way valve was failing and leaking, the inverter pump was also failing pushing very little flow. I purchased a Toyota brand 3 way valve, the after market one failed in less than a year (code P1121). The company, for $625, replaced (they supplied) inverter, inverter water pump and another tested hybrid battery and installed the 3 way valve. They have given me a money back warranty if this does not solve the problem.
Immediately after the install my average MPG has gone up to 35.5 and still rising, numbers I have not seen in over 3 years. I hope this resolves the issue.