It claims to be 'intelligent microprocessor controlled' and has a 'diagnostics programme and controlled charging process'.

So, with this charger there is at least an opportunity to charge my leisure batteries properly and fully whenever convenient. The important plus point for me is that this charger claims to work on various battery types including AGMs which are what I have for leisure batteries. This review is not meant as a technical lesson into battery technology but I have become aware that different battery types require different charging processes. The onboard charger on my motorhome (and very many others) does not specifically cater for AGMs - there are just switchable settings between wet and GEL batteries. Selecting either of these will not give the right process for AGMs and there are conflicting reports from different trade sources as to which is the nearest compromise.The charger will only start when the charging process has been selected. There are 4 Modes, the first is for 6v batteries, Mode 2 is for small 12v wet batteries, Mode 3 is for larger 12v wet batteries and Mode 4 is for AGMs. Whichever is selected will result in a red light to confirm the selection in the top row of lights and a red light in the lower row to show that charging is taking place.

OK, so I admit to impulse buying occasionally when wandering around the 'specials' in Lidl and Aldi. This multi-stage battery charger was the result of one such browse.