GOOLOO (99% positive lifetime feedback) via Amazon offers its 500A Car Jump Starter & Portable Battery for $32.49 shipped when you use the code EYD9G5L9 at checkout. Normally $50, this is one of the best prices we’ve tracked and is the lowest available. You’ll be able to jump start a car with up to a 4.5L engine by using this portable battery. Plus, when you’re on-the-road, this portable battery can power your devices like iPhone or iPad in case of emergency. Rated 4.4/5 stars.

Nomad Base Station

If you just need to power your phone and tablet, check out Anker PowerCore 5000 for $22 Prime shipped. It can’t jump start your car, but it’ll sure help keep your mobile devices powered.

GOOLOO Car Jump Starter features:

  • [Affordable and Powerful]: The GOOLOO jumper pack GP80 can restarts your vehicle (motorcycle, RV, tractor, light-duty trucks, cargo vans, ATVs, snowmobiles, oil boat, etc) up to 4.5L gas engine with 500A peak current
  • [Fast Charging]: Designed with 2 USB outputs (5V 2.4A/9V 2A), the quick charge 3.0 USB port can full charge your cellphones, tablets, and other mobile devices at the fastest speed possible
  • [Emergency LED Flashlight]: The GOOLOO Car Jump Starter comes with a built-in LED flashlight. Long press the power button to activate the strong mode, press again to switch to warning strobe, and press a third time to turn on the SOS flashing. It’s an emergency life saver when you go camping, travel, picnic, outdoor adventure.

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