I have two BLUETTI EB3As. With the voucher offers that come through on Ebay, they each cost £167. Different model I know, but one, after being charged was put away. 10 months later I had the need to use it, it was still sat at 100% power. When you consider the cost of Jackery's, it's a no brainer to go with the Bluettis. Love your van mate.