I've Got The Power

My allotment radio has been eating batteries.  Probably because it kept turning itself on randomly; a situation I've fixed by taking a battery out when I turn it off.  I was curious about the level of power in the batteries I've been putting in/taking out so I've invested the princely sum of £4.39 in a battery tester.  I've been through the batteries in the recycling pot this evening and 75% of them have over 50% charge left in them.