I bought this product to enable me to charge my campervan battery, camping leisure battery and maintain my car battery which spends quite a bit of time standing in the garage. This charger does all of this and can act as a 12V power supply too. The extra output, 7A is useful when charging the bigger batteries used in vans. Good build quality, but one thing I am not so happy with on this model, (unlike a prevoius smaller model I have used) is that during some operating modes the charger makes audiable clicking noises which suggests that it incorporates mechanical relays to switch current. This may be a weakness in the future.
Overall good design with a good range of plug-in accessories.
Expensive but recommended if you have a van or car with a 100Ahr battery or larger.