| File Name | Size | Date | |
 | Battery_Repair_1971.pdf | 4588 KB | 4/8/2002 |
| Battery_Service_Manual_1964.pdf | 9191 KB | 2/1/2006 |
| Capacity_Loss_in_PV_Batteries_and_Recovery_Procedures_1998.pdf | 118 KB | 6/22/2007 |
| How_To_Make_Lead_Acid_Battery_Plates_2008.pdf | 117 KB | 3/12/2010 |
| Lead-Acid_Battery_State_Of_Charge_Vs_Voltage_1993.pdf | 80 KB | 7/21/2004 |
| Rebuilding_Lead-Acid_Batteries_1922-Witte_2008.pdf | 9989 KB | 11/2/2008 |
| Storage_Batteries_1920.pdf | 4381 KB | 12/27/2009 |
| Storage_Batteries_Simplified_Operating_Principles_Care_1917.pdf | 7899 KB | 11/17/2008 |
| The_Automobile_Storage_Battery_1919.pdf | 17040 KB | 12/27/2009 |
| The_Storage_Battery_1906.pdf | 3784 KB | 11/15/2008 |
| Typical_Lead-Acid_Gell-Cell_State-of-Charge_Ver_Voltage_2010.pdf | 13 KB | 4/13/2010 |
| Volts_Per_Charging_Current_For_A_Charged_Gel_Cell_Lead-Acid_Battery_2009.pdf | 11 KB | 3/12/2010 |