Last night we had storm force winds so rather than set the PW2 to StormWatch, I cranked up the %backup. Immediately, the PW2 charge rate increased to 5kWs. Previously, the maximum charge rate has been c.3.6kWs. Is this change possibly related to the recent firmware update? I should add that the increased charging rate is well within the safe limits of the cabling. I live in the UK.