Schumacher DSR ProSeries Battery Charger Flash Reprogrammer, and Power Supply with Battery Support - 100A, 12V

I’ve had one of these for years and it works without fault. Only thing better than one is having two.

Principalmente la uso para conservar un voltaje estable y corriente suficiente en los vehiculos a los que se les realizara una programacion o codificacion de los ECUs. Mantiene muy bien el voltaje en lo que lo dejes ajustado,personalmente lo dejo a 14.2v y es muy estable, con variacion de menos del 5%.Es compacta, muy robusta, facil de manejar y ajustar, muy intuitiva y los cables de alimentacion tanto para la unidad como para el vehiculo son de alto amperaje y muy robustos.En general es una excelente compara, sin embargo no pienso utilizarla para cargar baterias. Solamente la utilizo para mantener el voltaje estable y en ese sentido estoy completamente satisfecho.

I needed a solid supply when running diagnostics on my Jaguar, I am very impressed as I can set the voltage required and it remained constant while performing multiple load and stress tests. As expected, this unit has some weight to it and comes with heavy duty cables but portable.As I'm use to the larger wheeled units, I'm going to have to make or acquire a stand or cart for easier functionality in the shop.To date, I have nothing negative to point out with my experiences when using.

Works really great I can used it to update software.. it was great buy...

Purchased to use for programming/coding newer BMW's.First unit that arrived would shut off as soon as you put a load on it, then would take about a minute to reboot. Returned to Amazon.Second unit arrived has been working great. Did a 24hr programming session the other day and it did not skip a beat.