For some people on the fence about whether to join the green driving wave,issues with power batteries is what is holding them back.Last summer,a rainstorm drenched one person's confidence in new energy vehi cles (NEV).Gao from Shangqiu of central China's Henan Province,who only gave his surname,owns a Chery eQ,a Chinese NEV model.The car's battery got flooded in his garage during the storm and subsequently died.He was told the only solution was to buy another battery.