Bayunov V. V. RussiaSt.-Petersburg JSC NIAI Istochnik, 10, Petrograd party, Dahl St., Saint Petersburg, 197376 Author's articles Definition of the full internal resistance of plumbum accumulators The electrolyte density in the lead acid battery VRLA electrodes , pores The optimization of the positive electrode grid of stationary lead acid battery About corrosion stability of the leaden alloys for stationary battery The optimization of the electrodes height of stationary lead acid battery The changing of stationary lead acid battery parameters with use of the corrosion-proof alloys Higher reliability of lead-acid battery in local power system The influence of the specific energy, service life, resource on relative cost of the chemical power sources