Valence XP LiFePO4 battery user group | Two 138ah in parallel, were fully charged spend 8 days off grid with no issue using around 70ah daily and voltage being in the 13 ish | Facebook
Valence Multipurpose Batteries and Power for sale | eBay
Valence U27-12XP Gen2 Lithium Ion 12v 138Ah U-Charge Battery Modules