Am I being paranoid? 2 x 110ah agm batteries. 2 x 100w panels to 1218 controller to ebl99. If I use a lot of elec, eg 100w slow cooker on a sunny day for 5 hours, power goes down to 12.0 to 12.2v. Fair enough. But then if it is v sunny or even if we drive for 2 hours it still takes several days for them to get back up to 12.8 reading after sun has gone down. We never hook up usually so its solar or driving to charge, and its only when using a lot it is slow. Just lights and stuff and stays fully charged. Is it me? Should they recharge quicker? Do I have a sulphation prob? Thanks in anticipation. Won't get chance to reply til tomoz when we are back on the beach for free wifi again!