Battery bank that can jump a car?

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Deputy Dog
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jigsaw wrote:
Deputy Dog wrote:
I work part time at a car auction that moves 7000 used cars (in one sale day) a week. This is the one we use: Clore Booster PAC ES5000 https://www.jumpstarterreviews.org/booster-pac-es5000-jump-starter-review It will work all day (10 to 15 cars) without a recharge.

I have used that exact booster to start cars and forklifts that had NO battery of their own. Just clamp onto the cables and it works fine, plenty of power. My local NAPA store carries that model.

I’ve jumped completely dead batteries that were so bad that we had to keep the box hooked up so the car would run long enough to get through the auction, because the battery wouldn’t hold enough charge to even keep the car running after it was started.

They are a bit pricey, but they seem to work much better than the cheaper models. They seem to hold a charge for a long time as well.

Hobbyfotograaf
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Deputy Dog][quote=jigsaw][quote=Deputy Dog wrote:

I’ve jumped completely dead batteries that were so bad that we had to keep the box hooked up so the car would run long enough to get through the auction, because the battery wouldn’t hold enough charge to even keep the car running after it was started.


That is no problem with a lead-acid battery powered jump starter because that battery can be charged with the alternator in the car without danger of overcharging.
That way it is no problem to use it all day long, just leave it connected for a few minutes when the engine is running, and you will get enough power for the next jump start.
Do not try this with a lithium-ion jump starter, it could be very dangerous (you will hear a warning sound if it is connected when the engine is on).
texas shooter
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As some one who comes across stranded motorist on a semi common experience, a few pre broken down pointers. Up grade to the largest battery the self will hold. Many cars/trucks have under sized batteries and all those electrical gadgets are killing them. Next up grade that bigger battery to an AGM, shorted dead cells are nearly impossible to create. They’ll deep cycle hundreds of times. These batteries have huge reserves but need to be sure it’s got the needed cold cranking amps. These batteries have a 5-8 year life and are in many emergency vehicles. In the auto stores there often the Gold or Platinum series. At Bass Pro or Cabela’s in the boating section.

JoeRodge
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Blows my mind I haven’t seen anyone mention the Noco Genius jumpers. They make lithium units that can jump 6 liter diesel to, construction equipment, etc. I own the GB40 and it easily jumped a 3.0L diesel with a battery that was at 3.3v

Deputy Dog
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Hobbyfotograaf wrote:
Do not try this with a lithium-ion jump starter, it could be very dangerous (you will hear a warning sound if it is connected when the engine is on).

One of a few dangers when jumpstarting a car. They actually require us to take a class at work.

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