Review on AUTOGEN Car Jump Starter 4500A 99.9WH With 12V Socket Portable Battery Charger Booster Pack, Jumper Pack With Intelligent Jumper Cables For (12.0 Liter Gas And Diesel) Heavy Duty Trucks Boats RVs by Marcus Hargrave

I bought this in hopes that it would supply enough power to run jack stands on 5th wheel RV's as I move them from Mfg yard to our transport yards. I suspected it may not give continuous power for the duration of running those jacks up/down and I was right. It would only give about 10secs of power at a time causing too much delay for my purpose. It would also shut down into default/stop mode causing me to have to unhook and rehook to clear. Furthermore, the power supply drained quickly [Li-Ion] and couldn't keep up w/ the necessary charge between short [15min] loads. So, this will not supply a continuous power supply, but was also not designed to do so. I will still keep this nice little unit for jumping anything, including my Duramax Diesel truck, as it has plenty of power to do it's intended job. Will also travel w/this as it's compact and handy. [I ended up buying a regular lead-acid jumper box for my temporary power supply as using my aux 12V deep cycle battery takes too long to hook up for my temporary use. Time is money.] Overall, this is a very practical unit that is light, compact, & easy to use for jumping anything and I will keep it for emergency power use.