Know anything about batteries? There are other ways of determining remaining battery capacity, but most popularly it is determined by testing voltage, which itself can be split into two methods: testing voltage under load and testing voltage not under load. Testing voltage under load takes energy. Testing voltage not under load will also take energy (if the tester is built in to the device, which it is) but not as much, though testing not under load is not nearly as reliably accurate as testing voltage under load.

So, in fact, not only possibly, but definitely, checking battery life is always detrimental to battery life because it takes power to check voltage under load to produce battery life data, and that power comes from the battery's remaining capacity.