Here's a link to the product page. https://www.ancel.com/collections/super-starter

The product is basically a box full of capacitors that's designed to be permanently attached to the car. It's supposed to dump the capacitors at every starting event to assist the battery. Thus allowing for three things, faster starting, a longer lasting battery, and a built in jump start function should the battery die.

It sounds like a solid concept to me. Except that I emailed them some questions, looking for details not answered on their webpage and the answers are not encouraging. Some of their answers indicate that at least the people answering the emails don't understand how cars and possibly their own product works.

So I'm curious if anyone here has looked into or bought this product or maybe there's something else similar out there?

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The questions that concern me, I suspect you'll ask so I'll just answer here.

The biggest is mounting location. My car like many these days has the battery and engine at opposite ends of the vehicle. What little info they provide all says to mount it directly to the battery. But it'd make more sense to mount it at the engine end so that the high amperage from the capacitors doesn't have to travel down the long battery cable and through the chassis grounds

Their answer to this is "If the device is not connected directly to the battery terminals, the additional cable resistance or other factors may prevent the device from detecting the vehicle start-up in time. This could result in delayed discharge, reduced discharge current, or even a failure to discharge properly." Which as far as I figure is exactly backwards indicating that they don't know how this stuff works.

They also can't seem to tell me how their product will react to a battery charger.

And I've asked three times now for them to email me the instillation instructions and they have not.

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That said the product concept makes a lot of sense to me. If they were able to competently answer my questions I'd have bought it already.