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Old 05-22-2014, 12:35 AM   #1 (permalink)
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Thumbs up Pics of cool karma projects at Fisker Philly

Gonna try to post some pics of interesting projects I get into here. Working on getting our website/FB page back up in anticipation of future endeavors.
This is a Karma with power inverters overheating caused by a low temp coolant loss. Found a cracked weld on front traction motor. Required surgery...thanks to Dave at DC Customs for a sick TIG welding job (see last 2 pics).
Pics show RDM coming out and soapy water and pressure test. Bubbles at leaking weld. Then loaded into truck to fabricator.
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Old 05-22-2014, 05:52 PM   #2 (permalink)
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Wow looks like a fun job almost as fun as network issues . Great job as always Joe
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Old 05-23-2014, 12:06 AM   #3 (permalink)
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Yeah, I'll take a few days off from the network issues thanks
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Old 06-08-2014, 07:30 AM   #4 (permalink)
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Default hv battery pics

Some pics of battery removed and uncovered. And yes its as dangerous as it looks
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Old 06-08-2014, 11:14 AM   #5 (permalink)
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Originally Posted by FiskerPhilly View Post
Some pics of battery removed and uncovered. And yes its as dangerous as it looks
The battery innards look fascinating. Are the black rectangular components with the green tags the modules we have heard so much about?
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Old 06-08-2014, 11:20 AM   #6 (permalink)
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The battery innards look fascinating. Are the black rectangular components with the green tags the modules we have heard so much about?
Fab yes you are correct those are the modules each module contains 21 cells . The battery hold three different type of modules .
In Joe's case he had a bad module 10 so we can remove that module and replace it with another module 10 .

If he didn't have a number 10 module you can another module as long as it's part of the set . They contain Postive and negative modules . Also on the side where is looks like a L you can see all the electronics .
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Old 06-08-2014, 02:37 PM   #7 (permalink)
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Some pics of battery removed and uncovered. And yes its as dangerous as it looks
Anyone who's ever accidentally welded a screwdriver to a car via the ordinary 12V lead-acid battery should have a healthy respect for batteries already.

(The Li-ion batteries in EVs—or even cell phones and computers, for that matter—are willing to put out the same kind of current, and in EVs they are generally strung together to make 300 to 400 volts, depending on EV details.)
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Old 06-08-2014, 03:47 PM   #8 (permalink)
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After I remove the batteries cover I have two sets of gloves I wear until I make the battery safe enough to work on . A set of heavy rubber gloves then a set of leather gloves worn over the rubber gloves rated to 1000 Volts . I also refuse to answer the phone or let anyone near me while I'm making the battery safe to work on . One wrong move it's all over
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Old 06-08-2014, 08:07 PM   #9 (permalink)
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Yes @ct-fiskerbuzz correct about the tool welding trick lol. Actually the first couple times I disassembled the HV battery, I was admittedly worried about touching the wrong thing which is a very real possibility, but the gloves (as clumsy as they are) do help confidence. Its certainly not safe for the untrained.My buggest fear is dropping a tool into it. Its one thing to put your wrench on the wrong bolt of your V8.Its a bad day when your wrench hits the wrong place in this baby. Ive heard the use of the word "vaporize" amongst hv engineers...
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Old 06-09-2014, 11:00 PM   #10 (permalink)
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How many volts are we talking about with the Karma?
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