Yes, you can, because the capacity is specified as 88.80 Wh, which is below the limit of 100 Wh set by the FAA. Some airlines also allow battery packs with a capacity of 150 Wh, but this must be explicitly clarified with the respective airline before travelling in order to avoid unpleasant surprises.

Yes, it is allowed to bring this specific battery pack with you as the capacity is 88.80Wh what is below the limit of 100Wh given by the FAA. Some Airlines also allow the size to be 150Wh but this should be checked prior to boarding to avoid any unpleasant surprises.

I haven't had any problems with it in hand baking yet