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Aircraft maintenance TroubleShoot > Aircraft Lead Acid battery troubleshooting Concord and Gill battery

Battery life short - Gill Batteries or Concord Battery

 

 

1. Overcharge. This causes buckling of plates, shedding of active material, oxidation of grids, overheating, excessive loss of water. Recommended voltage regulator settings for traditional non-sealed batteries):
 
Voltage Regulator Setting
Ambient Temperature
12 Volt Battery
24 Volt Battery
65 Degrees F.
14.1 to 14.9
29.2 to 29.8
80 Degrees F.
13.9 to 14.7
27.8 to 29.4
105 Degrees F
13.7 to 14.5
27.4 to 29.0

General rule in voltage setting is to lower the adjustment where the battery is using too much water (indicating too high voltage) or to increase the adjustment when the battery doesn't remain charged. Sealed batteries are sensitive to overcharge as this causes the battery to gas and to open the pressure relief valve and dry out.

2. Level of electrolyte is below top of plates. Keep electrolyte level above cell separators.
3. Sulfates plates. This happens when the battery is left d (1/2 capacity of less) for a period of time, or electrolyte is not maintained at its proper level. Charge at normal rate until the specific gravity doesn't rise for two hours and then give a 60 hour overcharge at 10% of the normal charging rate of the battery. If battery capacity is still low, replace.

and when you know you got to go --go! Parachute Sense US NAVY 1944

 

 
 

 

 

 

 

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