The Lead Acid Battery

This is the oldest form of battery which still in use very videly. Still it is in use in automobiles and boats. 

Basic properties of Lead-Acid Battery:

1. Internal Resistance                               <8.3 mΩ/Volt.
2. Charge-Discharge Cycle Life       200-300 min.
3. Charge Time                                  >8 Hrs
4. Overcharge Tolerance                   High
5. Self discharge/Month                    5-15% (at room temp.)
6. Cell Voltage                                    2.0 Volts
7. Charge Cutoff voltage                   2.40 V/cell (max.)
8. Discharge Cutoff voltage               1.75 V/cell at 1C (min.)
9. Peak Load Current                        5C
10. Peak load Current                       0.2C (for best results)
11. Charge - Discharge Temp.          -20 to 50 degree C (for best results)
12. Maintenance requirement          Equalisation/3-6 months
13. Safety requirements                    Thermally stable
14. Toxicity                                         High