Amazon.com: Customer reviews: TACKLIFE T8 MAX Jump Starter - 1000A Peak 20000mAh, 12V Car Jumper (All Gas, up to 6.5L Diesel Engine), Auto Battery Booster, Portable Power Pack with Smart Jumper Cables, Storage Case, UL Certified
I let the battery completely drain on purpose by leaving the headlights on to test out this battery charger. I have a full size Chevy Silverado with a V8 and this jump starter started the truck right away. Very impressed with this device. No longer would you have to wait for someone to come by with jumper cables or another vehicle.