Joules, Amps and Portable Jump Starters

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vandne

Member - Posts: 12

Joined: November 15, 2004

Location: Canada

Posted: March 22, 2016 at 11:01 PM / IP Logged

I recently purchased one of those portable jump starters. A Noco GB40. I took it apart to see what it's all about and am having trouble making sense of some of the specs/claims.

Does anyone know how you would calculate the Joules and the amps they claim?

From my research, there are 3x 3.7v 2150mah 60C lithium batteries in here. So a lot less than others, yet some others on the market claim only 400amp with similar sized batteries.

Is there any way to test the 1000amp claim on these? Does that number even seem realistic?

Is there any way to test the Joules they claim (7000joules for 3s)?

Thank you for the help. Just trying to see if this is marketing hype or may actually be what it claims.

Joules, Amps and Portable Jump Starters -- posted image.

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rs specialist

Copper - Posts: 175

Joined: September 30, 2015

Location: Arizona, United States

Posted: March 24, 2016 at 4:21 PM / IP Logged

I would assume that it is marketed like some audio amplifiers in that it will produce that power WLS kind of scenario.

WLS (When Lightening Strikes)

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i am an idiot

Platinum - Posts: 13,667

This member consistently provides reliable information

Joined: September 21, 2006

Location: Louisiana, United States

Posted: March 24, 2016 at 9:01 PM / IP Logged

I have had to replace an ANL200 fuse that is soldered in a case on a Matco box similar to this one.

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