4.2.2 Smart Charging Algorithm EN | 009 EN | 010 Custom Defined by the user The user can choose from SUPPLY, Lead Acid, and LiFePO4, and then define the charging voltage and current. After setting, this mode will be auto-saved for quick use later. For example, suppose you choose Lead Acid and set the voltage and current to be 14.5V and 30A respectively. After the setting, T120A will charge the Lead Acid battery by following a stepwise charging algorithm. When the battery is fully charged, the voltage will be 14.5V.