The BT 03 is a battery condition indicator designed to check easily the state of charge of lead acid battery. It is ideal if your battery is difficult to access, hidden or if you cannot use clamps. Just connect the eyelet terminals to the battery and charge normally. Compatible with all BS smart chargers!

  For 12V Lead acid batteries only 
  SAE charge port with weatherproof sealing cap
  2x M8 eyelets terminals -  8,4mm
  10A fuse protection
  Cable length 500mm


  1. Connect the red eyelet on the positive (+) battery terminal

  2. Connect the black eyelet on the negative (-) battery terminal

  3. Connect this accessory to the quick connection of your BS Charger



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