... , RoHs cert. 3. CC/CV. Character of Model K Battery Charger:1. Adopt two stages charging modes: constant current charge, constant ... after few minutes.It is normal and can protect the charger.5. Constant charge, constant voltage, two stages charge, charge automatically ... . Avoid overcharge.6. CAN comunication available 72v Charger Qualified Golf Cart Lipo Battery Charger