Efficientnet model not saving completely after training

[tetengious]

I trained efficientnet model (efficientnetB2 to be precised), saved it but getting different accuracy result after loaded and evaluated the model with same test dataset. Only saving it as h5py gave same accuracy result after loading it but I cannot download h5py foldee from kaggle working area.
How do I save efficientnet model to give me same accuracy on test data after loading it.