I can get eve 280ah cells for $88/piece and CALB 280ah for $106/piece. the vendor highly recommends the CALB due to quality. They said they all test over 300/ah and commonly 305-310ah. Also claim 9000 Cycles! Does anyone have any experience with the two brands? The EVE is cheap enough to afford another string but if the CALB will outlast the EVE significantly I would rather go that route. The CALB also comes with balance sheets. Thank you for your all's opinion.