Pros: Comes with an air compressor and charging port. Plenty of amps for a vehicle. Maintains a charge almost indefinitely.

Cons: Some of the features - tire pump, compressor hose - are fragile, as is the pressure gauge. Durability is a question.

Summary: There is plenty of use for this unit - if it can stay in one piece long enough for those uses. Better options are available.

Pros: Compact power for a multitude of devices. Protection features are a bonus. The lights are a welcome feature Recharges easy.

Cons: Comes with confusing directions and no online assistance or warranty. Customer service is poor. Will sometimes not hold a charge.

Summary: Nothing about this unit makes it better than the previously reviewed options. You are best off with one of those options.

Pros: Portable unit that will start a vehicle and power home devices. Retains a charge well and provides plenty of power.

Cons: Plug terminals and clip handles are fragile. While portable, the unit is also heavy. Air compressor feature is less than stellar.

Summary: Versatility and portability is terrific but not with a fragile unit that is sometimes suspect.

Pros: Retains a charge for a long time and is easy to use. The light is a welcome feature. Compact, lightweight and durable.

Cons: Not enough power for some needs. Best described as a home unit not suited for heavy-duty use.

Summary: A good choice for simple, light work. Not better than the JNC660, but still the Best Bang for the Buck.