Battery Chargers

[Wilhelm]

5000 Amp out of a under 10 lbs thingamajig?
OK.

Still, false advertisement even on the spec sheet of the posted link, 66000 Joules/5 seconds at 12 Volts is not the claimed 5000 Amps.
It is 1100 Amps, according to Google AI

 

[MtnHaul]

5000 Amp out of a under 10 lbs thingamajig?
OK.

Still, false advertisement even on the spec sheet of the posted link, 66000 Joules/5 seconds at 12 Volts is not the claimed 5000 Amps.
It is 1100 Amps, according to Google AI

View attachment 478747

Just about every single jump pack made advertises some kind of "peak amps" which are always far more than the power that can be supplied consistently over a meaningful time frame.
If you carefully read all the info related to this specific jump pack there is nothing, absolutely nothing claiming that it delivers 5000 amps. Marketing yes, false marketing no. Deceptive marketing? Sure, but all marketing is deceptive in my opinion. There isn't any info available on what the actual output is, but I do know it will easily start a 7.3L IDI without any batteries installed in the vehicle. The only claim the company seems to make is that it will start gas & diesel engines up to 10 liters. If I had a 10L engine I would go test and make a video.
It is interesting that the company does claim that their largest 12/24 volt model will deliver ". . .over 10,000A of starting power. . ." but none of the other models include that specific language. It's kind of like when Harry Truman gave the okay to drop an atomic bomb the military told him they would be dropping just one bomb of the tested type--but they were also dropping a second bomb of the untested type. The Devil is always in the details.

Edit: How about this one at 5.82lbs, https://static.globalindustrial.com/products/pdf/82455-noco-company/B3085749_SPECS.pdf

 

[Wilhelm]

I kinda knew You would counter argue.

Says clearly 5000 Amps on their specification sheet.

 

[lehman live edge slab]

I've had 2 Carquest 6V lead/acid batteries last > 10 years in a 1940s Ford tractor that lives outside under a tarp. I'm starting the tractor with one later today to plow the snow we got yesterday. Tractor is original 6V + ground system.

Here is a 5 oF day. Got the radiator covered up.

View attachment 476430

I can't find any battery comparable today for CCA (870) of the same size that will fit inside the battery compartment. I just shopped the same size for my cousin's 1953 Ford NAA, best I could find was 700 CCA.

Used to be able to buy 8v batteries for the 6v system and helped with cold weather quite a bit.

 

[MtnHaul]

I kinda knew You would counter argue.

Says clearly 5000 Amps on their specification sheet.

View attachment 478766

Stating 5000A is not a claim to anything--it's just marketing. All I'm arguing is that the only claim the company makes is that the charger will start up to 10L gas & diesel engines. If they claimed 5000A output then that would be a different story. And if you can show me where they make a claim to 5000A output then I will gladly admit I'm wrong, but I haven't seen any such claim.

I would equate their "5000A" labeling as not much different than a company adding "35% more FREE!" to a package of chips or crackers--they're not saying what they are giving you 35% more of. I would say it's a shady practice but it seems to be a common practice. I have no emotional stake in this, but I am interested in the facts.

And I of course checked and double checked their various "spec sheets" and they don't list anything in terms of actual output. I only bought one because the insurance company was paying for it--I would have never paid out of pocket for that "thingamajig". It does work well though, and hasn't failed me yet.

 

[Philbert]

I can't find any battery comparable today for CCA (870) of the same size that will fit inside the battery compartment.

Might be a dumb / uninformed question, . . . but, can you hook up some kind of transformer to bring a 12V battery down to 6V?

Would that double the CCA rating?

Philbert

 

[Sloughfoot]

Might be a dumb / uninformed question, . . . but, can you hook up some kind of transformer to bring a 12V battety down to 6V?

Would that double the CCA rating?

Philbert

This do that?

Amazon.com : 12v to 6v converter

 

[MtnHaul]

Might be a dumb / uninformed question, . . . but, can you hook up some kind of transformer to bring a 12V battety down to 6V?

Would that double the CCA rating?

Philbert

There would be some percentage of energy loss in the step down, but probably not a lot.

 

[Philbert]

Will any of those support the cold cranking startup amps for an engine, versus just running electronics?

Thanks.

Philbert

 

[Al Smith]

Claims of enhanced capabilies of just about anything under the sun is an old marketing ploy that for the most part works .My favoite which a lot of people take the bait ,hook, line and sinker is log splitters .Claiming 40 ton capabities with a four inch cylinder and a 6 HP engine and a 3,000 PSI hydraulic pump which is factory set at 2750 PSI .---do the math---

 

[Al Smith]

Regarding voltages on a DC series wound starter motor it goes like this . If you connect 12 volts to a 6 volt motor it multiplies the power output by around 4 times .Conversely if you half the voltage you get about 1/4 the power ..--and that can result in a burned up starter motor . E times I is wattage divided by 746 equals HP .

 

[OnlyStihl]

Claims of enhanced capabilies of just about anything under the sun is an old marketing ploy that for the most part works .My favoite which a lot of people take the bait ,hook, line and sinker is log splitters .Claiming 40 ton capabities with a four inch cylinder and a 6 HP engine and a 3,000 PSI hydraulic pump which is factory set at 2750 PSI .---do the math---

So true. And I'm still trying to get my money back. Guaranteed my ass.

 

[MtnHaul]

So true. And I'm still trying to get my money back. Guaranteed my ass.

View attachment 478852

Nice. I still remember seeing the ads for those on the Bazooka Joe bubble gum wrappers.

 

[Al Smith]

I could say I have x-ray vision from my stint on nuke subs but have to just to say I have a vivid imagination .