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Also the weight of approx. 4-6 cats, depending how fat they are.

Or as few as two cats, depending on the breed.

What is a barbell you ask? The metal stick where you put on the weights each side in the gym. Had to look it up.

Not to be confused with a barbel -- which is a fish.

Apparently the largest barbels can grow up to 10kg. So the battery is worth approximately two barbels.

It may have been more fitting to call the fish dumbbels.

It is also the weight of a 20kg kettlebell, coincidentally. Crossfitters fling those over their heads all the time. But I’m not sure I would want to carry one for long distances: farmers’ carry is surprisingly exhausting even when the weight is modest.