Schumacher Electric DSR158 - ProSeries Jump Starter - 12V 2400 Peak Amps Portable Car Jump Starter + Maintainer - Jumper Cables with Battery Pack - 500 cranking amps

I charge it monthly like the manual said whether I use it or not. I leave it in my car trunk whenever I drive out of town whatever the outside temperature is; a few times it was for trips with extreme temps at 25F or 110+F. I've used it to start another dead car and also give power to a tire inflator, and seem to have good reserve left before recharging. So far, it's worked well. The unit is heavy due to its sturdy build. If it works for the next 5 years, it's a winner. I prefer this over the dead small lithium unit for half the price.

Works great and easy to use. Able to jump multiple vehicles on one charge.

I have 4 of these and none of them work now. These work great when they are new and they will start just about anything only catch is they last about 6 months and stop working. My first two I returned within the Amazon window and they are bad now also! I keep them charged the way im supposed to with no luck. Now we can grab one that reads 100% charge and it wont start a lawnmower!

Quality is very good with lots of power

I love having these Battery Jumper box I use mine for everything from jump starting cars to powering up my Winches on my trailers and recharging my cell phones when I’m out and about

Purchased for a Pontoon boat that has three batteries. Since there is not an alternator on the boat, the batteries do not charge when the engine is running, so if the batteries are not fully charged all you get is clicking. Used the DSR last time I took the boat out. It cranked the engine over on the first turn of the key. Loved it so much, I purchased another for my truck.

Very easy to operate. Personal use.

Jumped my truck that had been sitting for a month, completely dead.... it showed 2.6v ... turned on the pack and on the first turnover, truck fired up.....