La Crosse Technology BC-500 - Manual (Page 11)

11
 Carbon or Alkaline batteries may cause the charger to display the
“DEFECT”. These types of batteries are NOT suitable for this
charger.
DEFECT INDICATOR
The “DEFECT” indicator will flash (Figure 6) for a while on the LCD while
the charger detects the battery condition. If a defective battery condition
is detected, the “DEFECT” sign will remain on until the defective
battery(s) are removed.
Warning: This charger will not necessarily recognize all types of
defective batteries. Owner discretion is required before attempting to
charge batteries of any condition.
If “DEFECT” is displayed, a bad battery has been
placed into the charging unit.
(Figure 6)