Purchase and installation of batteries (Absheron No. 4, Lankaran No. 10, Yevlakh territorial offices No. 17) Purchase and installation of new batteries Absheron Territorial Department No. 4 (Khirdalan city) Removal of old batteries without damaging UPS Absheron Territorial Department No. 4 (Khirdalan city) Purchase and installation of new batteries Absheron Territorial Department No. 4 (Khirdalan city) Removal of old batteries without damaging UPS Absheron Territorial Department No. 4 (Khirdalan city) Purchase and installation of new batteries Lankaran Territorial Department No. 10 (Lankaran city) Removal of old batteries without damaging UPS Lankaran Territorial Office No. 10 (Lankaran city)