8A 12V charger. For 3Ah to 180Ah lead-acid (AGM, GEL, EFB, MF, CaCa) and lithium batteries. The CS ONE has APTO (Adaptive Charging) technology to recognise the type of battery you want to charge and tells how long it will need to charge it. There are no buttons on the CS ONE, just connect any lead-acid or lithium battery and simply charge. Polarity free clamps mean you dont even need to worry about which clamp goes where, so youll never make a wrong connection again. The clamps are spark free too, so dont worry if you accidentally touch them together Unlock additional features using the Bluetooth® enabled CTEK App. Select RECOND to restore and recondition your battery. Choose WAKE UP for lithium batteries with under voltage protection or to bring deeply discharged lead-acid batteries back to life. Select SUPPLY to turn the CS ONE into a useful 12 V supply