This is a definite must have for anyone who has experienced a dead battery. Your battery may have just died through many years of service, you developed an electrical problem, or you may have just left your lights on. Whatever the situation is. This battery booster will reduce your anxiety and give you that sense of security and a piece of mind knowing that you will not be stranded. With jumper cables sometimes your car isn't in the most convenient place to get a jump from another vehicle. You won't have that problem anymore. This jump starter is compact in design and very powerful. It is unbelievable how much power this small jump starter actually has. If you’ve been around the block a few times like me, you will remember the old battery charger/jumper. It was so heavy it had wheels and a handle to pull it with. Plus, you had to plug it in usually in your garage. This jump starter will almost fit in your back pocket.The manual is easy to read while it explains the different features. It has safety features that will help the most inexperienced user hook it up. This jump starter has a specially designed anti-reverse, over-charge, over-discharge, overheat and short circuit protection Another safety feature is the 3 modes of emergency lights. It also has a very powerful 2500 amp, 22800mAh power bank plus 2 USB charging ports for any accessories that need to be charged. This is all you need for a dead battery to get you back on the road again quickly and safely. I highly recommend it.