How to restore a completely dead car battery (the easy way)

I do this often, especially if my vehicles sit for too long and the battery dies. The secret is to get the battery to 12 volts for even a few seconds, so that the charger will recognize it and start charging (for modern "smart" chargers.) I use my jump pack, but any type of jump will work. Once the car runs for a few minutes, as long as the alternator is also good, there should be 12 volts for a short time.
The charger I use is a $40 "Fully Automatic Microprocessor-Controlled Battery Charger/Maintainer" from Harbor Freight. If I don't get the battery to at least 10 volts, it will not attempt to fully charge the battery. All the "smart" chargers I've used have done this, but I found out that getting it to 12 volts by jumping and running easily tricks the charger into reconditioning the dead battery.

[@jefflyell]

Nice to see you back ... with some good information. It's Sunday evening here in East Gippsland, Victoria, Australia. I appreciate your channel, thanks.

[@DinasGarage]

Glad to see you back brother hope we get more videos soon. Hope all is well! Great tip!!

[@rob_lightbody]

I wanted to thank you for your clever trick! In Scotland, in the snow, with a 2006 Ford Focus and CTEK charger, but your solution worked a treat. I'd been completely stuck because the charger wouldn't recognise the flat battery

[@tinygaragefab]

That's awesome! I'm glad I could help!

[@jeepingneatus]

Right on man, good tip. Nice to see a video from you. Show us that Datsun!

[@aerialrescuesolutions3277]

Very cool.

[@stevethea5250]

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