AM.I.A.K15

From the FAA library

• Aviation Maintenance Technician Handbook - Airframep. 9-20
  Chapter 9: Aircraft Electrical System › Aircraft Batteries

  Aircraft Batteries Aircraft batteries are used for many functions (e.g., ground power, emergency power, improving DC bus stability, and fault clearing). Most small private aircraft use lead-acid batteries. Most commercial and corporate aircraft use nickelcadmium (NiCd) batteries. However, other ... discharge rate, maintenance, and charging rate. Any change of battery type may be considered a major alteration. Types of Batteries Aircraft batteries are usually identified by the material used for the plates. The two most common types of battery used…

• Aviation Maintenance Technician Handbook - Airframep. 9-46
  Chapter 9: Aircraft Electrical System › Small Single-Engine Aircraft › Battery Circuit

  older aircraft. A circuit breaker panel from a light aircraft is shown in Figure 9-83. Battery Circuit The aircraft battery and battery circuit is used to supply power for engine starting and to provide a secondary power supply…

• Aviation Maintenance Technician Handbook - Generalp. 12-90
  Chapter 12: Fundamentals of Electricity & Electronics › Batteries › Lead-Acid Battery Testing Methods

  between 1.275 and 1.240, a medium state of charge; and between 1.240 and 1.200, a low state of charge. Aircraft batteries are generally of small capacity but are subject to heavy loads. The values specified for state of charge ... therefore rather high. Hydrometer tests are made periodically on all storage batteries installed in aircraft. An aircraft battery in a low state of charge may have perhaps 50 percent charge remaining, but is nevertheless considered low in the face…