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FD20 Battery Recovery After Deep Discharge

Always refer to the manufacturer's Battery User Manual which can be found in this article in the Knowledge Base: Batteries: user manual and technical informations


If a lithium battery’s voltage drops below 21.6V it will be irreversibly damaged. This state is typically called deep discharge.
If the batteries are left in the under-voltage state, it will at some point deplete itself to a point where it cannot be re charged again. Such a battery must be discarded.

To “wake” the BMS with the FarmDroid Battery Charger (part number C024PF025201) you should:

  1. Connect the battery to the charger
  2. Connect the charger to the 230v power supply

If the charger is plugged-in to the wall socket, when connecting to the battery, the pulse is not sent.

 

WARNING! ⚠️

Please note that the under-voltage protection is not to be viewed as a feature but instead as a safety measure and it is always the user’s responsibility to ensure that the voltage never drops below the under-voltage protection 
threshold (21.6V).

 

REACHING THE UNDER-VOLTAGE THRESHOLD WILL VOID ALL WARRANTIES GIVEN

 

If the pack is left in the under-voltage state, it will at some point deplete itself to a point where it cannot be recharged again. Such a battery must be discarded.