The testimonies of people allow us to understand that the batteries are kept well enough, but even the approximate time can not be specified-in each case its own.
Izibuyekezo uvumele abantu ukuba baqonde ukuthi amabhethri igcinwe kahle ziningi ngokwanele, kodwa ngisho isikhathi eseduze ayikwazi ecacisiwe ndweni' esimweni ngasinye, bebodwa.