Specifications

MARATHONNORCO AEROSPACE, INC.
NICKEL-CADMIUM AIRCRAFT BATTERIES
24-34-00
Page 801
MAY 10/11
8.0 RECONDITIONING
8.1 When reconditioning is required discharge the battery until cells reach 0.5 volts or less. Place a
short-out clip across each cell once it has reached 0.5 volts or less.
When all cells have a short-out clip attached, turn off discharge unit.
For reconditioning, allow battery to stand in a shorted condition for a minimum of 4 hours,
preferably overnight. See 8.2 below.
For long term storage, remove cell short out clips, short out battery at battery main connector and
place into storage.
8.2 Remove short-out clips and return to Paragraphs 5.0, Step 1A.
− A severely unbalanced battery may need to be deep cycled as many as three times to restore its
capacity.
− If after three (3) deep cycles some cells still have not had their capacity restored, these cells
should be replaced.
− If 25% or more of the total number of cells within a battery are found to be defective, either at one
time or over a period of time, it is recommended that all cells be replaced.