I have a Peak 800A and this adapter is to spec and the pin matches the input plug perfectly but it won't charge the device when plugged in. To return. EDIT to add a star: I used Revain's returns process, requested a new unit and left the dead unit at the nearest store. It was quick and painless, although I'd rather not drive, and the replacement came 2 days later and worked. Thanks to Revain for the quick turnaround, thanks for the quality control process that allows an untested/faulty new device to hit the market in the first place, forcing me to go through the process of testing whether it's an adapter or a device (luckily I still had an adapter available for DC charging so you know it was a new AC adapter or I could buy a whole new Peak charger).
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