Underpotential deposition of lead proceeds on Bi2Te3 and Te components of Bi2Te3/Te heterostructures. From cyclic voltammetry and cyclic potentiodynamic nanogravimetry, the cathodic deposition and anodic oxidation of lead adlayer on Bi2Te3 are chemically reversible in stationary cycles, while a small fraction of Pb adlayer on tellurium transforms into PbTe in each cycle, which results in the emergent voltammetric response of lead upd on PbTe. The latter is helpful for disclosure of tellurium codeposition with bismuth telluride. Besides being a handy analytical tool, the upd of lead acts as precise batcher for introduction of ultra-small amount of lead and lead telluride onto bismuth telluride surface.