Dutsimbaraye ku ihame rya "Serivise nziza-nziza, Serivise ishimishije", Twagerageje kuba umufatanyabikorwa wubucuruzi buhebuje muri mwebwe utanga bateri ya aaa carbone zinc,Akagari ka Nimh, 1500mah Bateri ya Litiyumu Ion, Lr754,Bateri ya Solder.Twubahiriza amahame ya "Serivise yubuziranenge, kugirango twuzuze ibyifuzo byabakiriya".Ibicuruzwa bizatanga ku isi yose, nk'Uburayi, Amerika, Ositaraliya, Indoneziya, Johor, Ubufaransa, Senegali. Twashyizeho umubano w'igihe kirekire, uhamye kandi mwiza mu bucuruzi hamwe n'ababikora benshi ndetse n'abacuruzi benshi ku isi.Kugeza ubu, turategereje kurushaho ubufatanye n’abakiriya bo mu mahanga dushingiye ku nyungu rusange.Nyamuneka nyamuneka twandikire kugirango ubone ibisobanuro birambuye.