I'm thinking of buying a BYD Dolphin as the current promotion looks pretty good. 509,000 bt for the standard model. BYD are offering a Zhida charger with installation "worth 25,000bt". But that is only if you take delivery before 30 April. I'll be out of Thailand mid April to mid May & don't want to receive car until I get back. I've noticed much cheaper chargers on Lazada. What's special about that Zhida model compared to the cheaper ones?