My husband and I have used trojan products before and never really had any problems but we do have a problem with the tandem and would like to have it resolved my husband and I were in the act of using the product the tandem when the batteries started to go dead therefore we went to change them as it was still around his penis and the battery exploded causing slight burns in his handcan someone please contact me so we can solve this matter I can be reached at [protected]@gmail.com thank you