Electrolyte of Lead Acid BatteryElectrolyte of is a solution of sulfuric acid and distilled water. The specific gravity of pure sulfuric acid is about 1.84 and this pure acid is diluted by distilled water until the specific gravity of the solution becomes 1. Convert Evtx File To Text. 2 to 1.23. Although, in some cases specific gravity of diluted sulfuric acid are recommended by manufacturer of the depending upon type of battery, season and climatic condition. Chemical Action of Lead Acid Battery The battery cells can be recharged by reversing the direction of discharge current, in the. This is done by connecting, positive terminal of a DC source with positive terminal of the battery and similarly, negative terminal of the DC source with negative terminal of the battery. A rectifier type battery charger of suitable capacity is used as DC source for changing battery.
The Lead Acid Battery. Yuasa’s Technical Manual will. Remove the sealing caps to add water or electrolyte to the battery during its service. Battery Safety, Storage, Installation, Operation & Maintenance Manual RE Flooded Lead-Acid Batteries Publication No. US-RE-IOM-002 January 2012. Internet version of This Manual Created June, 1998 HYDROELECTRIC RESEARCH AND. Flooded, wet cell, lead-acid battery maintenance schedule. Sealed Lead Acid Batteries Technical Manual. 5.1 The storage and maintenance of batteries. The lead acid battery will have self-discharge reaction under open.
Due to charging current (reverse of discharging current) positive plates change to lead peroxide and negative plates change to pure lead. As soon as load is connected across the battery terminals, discharge current starts flow through the load and battery starts discharging. During discharging process, acidity of the electrolyte solution decreases and lead sulfate deposits on both positive and negative plates. In this process of discharge the amount of water in the electrolyte solution increases that is specific gravity of the electrolyte decreases. Theoretically, this discharge process continues until the negative and the positive plates contain maximum amount of lead sulfate and at that point both types of plate becomes electrically similar that means there is no between the electrodes of the cell.
But practically, no battery cell is allowed to be discharged up to this point. The battery cells are allowed to be discharged up to a predetermined minimum cell and specific gravity. A fully charged has voltage and specific gravity, 2.2 V and 1.250 respectively, and this cell is normally allowed to be discharged till the corresponding values become 1.8 V and 1.1 respectively. Maintenance of Lead Acid Battery If the cells are over charged, the physical property of lead sulfate gradually changes, and it may become obdurate from which it becomes difficult to convert by charging process. Hence, the specific gravity of the electrolyte decreases for which rate of chemical reaction is hampered. Sulfated battery cells can easily be recognized by viewing changed color of plates.
The color of a sulfated plate becomes lighter and its surface becomes harsh and gritty. Such cells evolve gas prematurely on charge and show a decreased capacity. If the sulphation is allowed for long time, it becomes difficult to rectify the cells.