The Scosche PBJF400 is the compact and lightweight portable answer to vehicle emergency situations. Its advanced technology and ample power will jump start your car, truck or motorcycle when its battery is low or completely dead with the 5,100 mAh 400A peak portable battery. The LED flashlight has 1,000 lumens with 3 different level modes of brightness plus SOS mode and a fast strobe in situations with very low light or while youre out at night or in case of an emergency. Use it to jump batteries with a 4-cylinder/2.0 liter or up to a 6-cylinder/3.5-liter engine. The portable battery stays fully charged without any recharging needed for up to 6 months and comes pre-charged for use straight from the box. The 5-Volt (2.0A) USB port quickly charges any USB device such as a smartphone, GPS, camera from the portable battery. Press the power button on the back of the flashlight to display the 5 separate indicator lights to show you where the batteries power level is at from either a low, 40%, 60%, 80% or a full charge amount. Our jump starter gives you more than our competitors does with a total of 10 built-in safety protections such as short circuit, timeout, spark-proof, over discharge, reverse charge, over current, over voltage, overheat, override capability, polarity and spark-proof protection to keep you, your vehicle, and the jumper unit safe. The spark-proof protection keeps any sparks from happening and the boost button on the jumper clamps connector overrides the jump starters low voltage protection to jump start a battery when the voltage is low or fully discharged. The durable design provides a long-life span for years of use and at only 10 long and 2 1/4 diameter the jump starter easily stores inside a glove compartment, trunk or can be taken with you to use with other vehicle batteries in the included carrying case with handle. This portable flashlight and car jump starter is backed by Scosche's Lifetime Tech Support and 1-year warranty.