* Jump starters are rated by cranking amps and peak amps. Cranking amps usually are an equivalent of a few hundred amps, and to check if it's compatible to your car, there should be something called the CCA (cold crank amps) that is specified by the manufacturer,
*1000 amps. Most jump starters will specify their peak amps as well.
* The bigger the vehicle, the more power it will need. Regular higher cranking and peak amps.
* Some jump starters have the feature of being recharged through any standard household socket, so take that into consideration for conveniance purposes.
* Overload protection is great in case you walk away from a plugged in jump starter; it'll keep it from damaging your car battery.
* Some jump starters have an indicator to let you know how much charge is left.
