I've noticed that when Eneloops lose significant capacity (i.e., the AA's are down around 1600mAh), their internal resistance goes up through the roof. This makes them useless for flashlights and anything else with moderate or high drain.
For example, an Eneloop will test about 1600mAh when drained at 250mA. But at 500mA, it will test at about 10mAh. That is, voltage craters as soon as you put a moderate load on it.
But don't throw them out. They still seem to hold a charge for a decent amount of time, so are still useful in things like remote controls or "battery vampire" lights. I wouldn't say they're low-self-discharge anymore, but they're not fast-self-discharge either. They'll hold a charge for a few months.
Anyway, at 1750mAh, it's probably getting close to wearing out. When it does start to wear out, it will go bad very fast. Like I said, still useful for low-drain stuff, but you'll definitely notice they won't be good for anything more than about 30 lumens.