I have just ordered one of these (certified genuine) to go with the new LifePo batteries also just ordered. I will take care to test the cells before doing anything else after unpacking them.
The old LiPos have swollen and the cells no longer balance nicely. They don’t seem to have lasted very long. I suppose they have done a couple of hundred activations between four of them so that is only 50 each
Thanks for helpful comments above.