Conrad energy button cell battery multipack conrad energy 250461 p this collection of 10 button cell batteries include the most popular sizes for powering watches key fobs calculators games computers cameras radios remote controls and more p p these button cell batteries produce a reliable steady power output for a long life on many small electronic devices the six button cell battery sizes in the pack are ag1 ag3 ag4 ag5 ag12 and ag13 p p they are great batteries for w