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Old 18th Jan 2013, 03:40
  #106 (permalink)  
RR_NDB
 
Join Date: Feb 2011
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Replacement to NiCds

Shore Guy:

How much larger/heavier would a NiCad battery have to be to replace the power available from the existing Lithium batteries?


Larger and heavier enough to require a mod to the plane. Will quantify ASAP.

Would the charging/monitoring software have to be modified greatly to accommodate NiCads?
It would require a redesign of the circuitry (i.e. not just SW). Iīve heard of a Diode (in series). With NiCdīs i never heard of that.

So, quite a big deal. The 787 design REQUIRED these batteries. Itīs specs mandated. The worst case scenario would be to retrofit to another battery
type. I hope they trace the problems to the charger or associated circuitry.
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