Anyone else have one of these lithium booster packs? I got a Noco Genius GB70 HD for Christmas, the 2000 amp. Fully charged and tried on a friends car with no success today. I think he’s having a problem with the immobilizer. But…. I noticed when I connect it to the battery (11.3 volts) it will only bring the voltage up to 11.7 when I turn it on. Even if I let it sit for a bit.
So, I tested it on the bench with the voltmeter. Turned on manual override and connected the leads, 11.7 volts. Seems a little low to start anything. Shouldn’t it be like 13 or so? Can it boost with a lower voltage because of the high amp output? Does anyone else have one of these they could test with a voltmeter?