A year long warrenty on a device that needed to be repaired twice already (for the same thing). Two years should be minimal for something of this price, otherwise I'd be paying for half a Mojo in repairs. Maybe I'm just cynical.
What I find interesting about the battery life issue is that by far the majority people have no apparent issues with their Mojo battery after a couple of years use, yet a relatively small minority of people seem to have a problem with not just one battery but their replacement battery, too.
That's intriguing, but, to my mind, it seems quite unlikely that Chord are to blame, because the odds don't seem to stack up. Granted,
not impossible, but unlikely.
If not one, but
two batteries have failed in the same unit, I'd be looking more towards pattern of usage (one example could be repeatedly listening to Mojo whilst plugged-in, but before the battery has reached full charge, which might, potentially, lead to unnecessary thermally-induced wear&tear on the battery). Aside from pattern of usage, the quality of the regulation circuitry of the customer's chosen USB charger might be worth considering (although, admittedly, Mojo does have built-in protection circuitry, to handle most scenarios).
Please don't anyone jump to the conclusion that I'm trying to 'deflect' blame away from Chord. I'm simply saying that the chances of
2 consecutive batteries failing seems rather outlandish, to put it mildly. I don't think it's unreasonable to suspect that some other factor, such as an unusual pattern of usage, might be at play.