Quote:
Originally Posted by pmsteinm
What do you guys use a power supply while coding/diagnostics/etc. The BMW ones are expensive.
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Generally speaking you don't need one. In terms of coding most coding can be done with the car on and it's recommended you do so (other than like ecu coding) and it doesn't take that long for coding to happen anyway. Same with diagnostics, just checking for codes car can be on unless you need to run procedures because shit is really fked but at that point you're probably taking it to a shop and let them worry about it.
That being said you just need a ctek lithium battery tender