I’m retired electrician solar installer . Haveing loads solar bmwi3 s I oldered came with free bmw solar smart charge switchable buy amps and 7.4 or 22 kw internally . Took these jokers 6 months to fit every excuse you can think of . Filly installed but there fitter dad than clue how to enable solar excess mode had it for . I clearly said that’s why want it and promised would suit solar only even bmw brochure part number and instructions confirm. Broke 14 months into 3 year warranty . Againnjokers took months even though told them I’m electrician and needs replacing . I’d just finally got kit add ons to make excess solar only . I got 3 normal chargers so was amazed fitted std no solar smart charger was promised like for like month s hell mum dying bp pulse ignore lied and wher joke . I sent them all proof not like bmw solar smart . I’d had fitted SolarEdge or zappi if I’d known myself . Solar excess mode half cost bp pulse unit . Was going take them court but sec broken back and unfortunantly i3 s write off . When off morthine im going after bo pulse mid selling . There unit is low tech nothing special and service worse company ever dealt with . Avoid all costs buy a better charger cheaper . I fitted zappi since and ohme pro to max solar excess and octopus agile tariffs to max