Hi Matt,
I did not misquote you deliberately.
You would have a hard job designing an LI battery pack for me as I need it to be good to -40. Heating the battery bank electrically would be a zero sum game, so until someone comes up with an LI chemistry that works at -40 without the need to be warmed they will not be useful to me. Propane heating would also be futile for my particular use pattern. (i.e. 3 months storage at temperatures that rarely climb above -20 C and that are as low as -40).
From what little I know of LI, they do not trickle charge too well. That eliminates small solar as a charging source. One person on the Forums does have 1400 watt of solar powering their RV with LI batteries, so it is possible. They don't cold weather RV.
It is moot, as I'll never have the funds for an LI installation.
My ideal system would be six two volt AGM's with a capacity of 800 to 1000 amp-hours. Recharging would be met by 1250 to 1500 watts of solar.
