First came across Wildtrack S4000 when my F250 7.3l had a low battery, 1 of the people I was working with used the Wildtrack S4000 pack and desipte my doubts it fired up straight away, half a hour late it died. The Wildtrack fired it straight up again. Turned out I had crook altenator and a stuffed battery. Best jump starter I have come across.
Love it
This was recommended to me and doesn't disappoint. Good quality item with everything you need. Recommend