We report the case of a 4-year-old boy who sustained an oesophageal bu
rn grade II-III due to ingestion of an alkaline substance from a leaki
ng cylindric 3.3 cm diameter battery, by putting the battery to his mo
uth and sucking the caustic solution. Lye ingestion by sucking a big c
ylindric alkaline battery has not yet been reported in the medical lit
erature. We recommend the production of safer alkaline battery cover t
ubes in order to eliminate any possibility of leakage. Accidents like
this might occur more often, since battery collecting and recycling is
becoming more common.