I don't think you are going to see any issues......however, I could be wrong. They say that NiMHs are more sensitive to heat than Nicds.......and if these would've been Nicds, I would tell you not to worry about it.

But, since this was an automatic charger....it is unlikely that they were "overcharged"(this was a peak charger, correct?). And since this has happened only once, I forsee things will be fine. Now, don't be doing this 10x in a row.....that will definitely cause havoc! Naturally, manufacturers always tell you safe limits not to be exceeded.....such as temps for Nimhs. And these specs are usually always a "bit on the safe side".

Like you said, you'll find out soon enough. But, I believe it will be fine.

Ob1n of RCU