Have been trying to source an Amperor 3 stage charger as a replacement for the charger in my Elddis. The first one (PS276) failed in under a year and was replaced under warranty. That one failed after just over a year. Rather than buying another one I treid to buy an Amperor 20A 3 stage charger. Rang Apuljack today to order one to be informed that Amperor appear to be no more! Ordered Apuljack's version of the PS276 - the AE 276 Plus which is a 3 stage charger and guaranteed for 2 years and a 'drop in' replacement. Not cheap though. Hopefully should last a bit longer than the originals.