Sure, but I think there is more to it. I think the car jumpers have additional capacitors in order to help deliver huge amounts of current to help crank the engine. Your typical power bank can’t do that.
i took apart a $50 broken one, no caps, just 3 flat prismatic li iron phosphate cells
caps that size would not provide more than .1 sec of what a starter needs
the batteries have to do all the work
i was just saying, the power bank function is a side benefit of these things
Thanks! Just ordered one. Truck battery is 4 years old but struggles below 0 degrees F lately. Do need to replace it. Have older batteries on tenders which sometimes need help in very cold weather. Will report back when it arrives and gets used. Others I was considering are twice as much. Audew is what I was looking at. Amazon.com
What mah rating is the Gooloo rated at? Didn’t notice what it was on the Amazon discription. I could have overlooked it I guess.
Edit- It’s 15000 mah. Just looked on their website. There isn’t a 1500a model but it looks like their gp1500 which is supposed to be a new release. Not sure if they are different. Specs look the same or close. I grabbed one just because they seem to get good reviews and “really” work.
It is the GP1500 model. 1500A is just a peak current rating.
By the way, does anyone know if the connector pictured below (in blue) is the industry standard EC-5 type? I wanted to pick up a cigarette lighter adapter for it. It looks like EC-5 to me, but some people said otherwise.
These devices generally work to augment a battery that just doesnt have enough umph to start by itself. In some cases, you even need to sit these on the battery for a while to transfer some charge so they can help. I would think you would need a pretty small engine (tractor/etc) to start it solo without a battery. While I can’t say from experience, I would think starting a car would be difficult to impossible solo. YMMV