FAQ Q: What is the input voltage of TORNADO90000? A: The TORNADO90000 is produced in two models with different input voltages: 100-120V and 200-240V. Please check the label on the back of the product to confirm the input voltage. Do not connect TORNADO90000 with 100-130V input voltage to a 220V power supply, which will cause damage and even fire. Q: How to select the charging current? A: The optimum charging current is related to the battery capacity. We recommend that the current value should not be greater than 20% of the battery capacity value. For example, for a 100Ah battery, we recommend that the current is not greater than 20A. Q:
Will TORNADO90000 stop charging automatically after the battery is fully charged? A: Yes. TORNADO90000 adopts 9-step smart charging. When the battery is fully charged, it will automatically stop charging without the risk of overcharging. If you still leave the battery connected, then the charger will keep monitoring the battery status and will automatically start charging when the battery voltage falls below its target threshold. Q: Can TORNADO90000 charge multiple batteries simultaneously? A: Yes. Please correctly connect these batteries in series or parallel before charging. If you have questions about the connection, you can consult the battery manufacturer or contact us for help. Q:
Which modes of the charger adopt the 9-step smart charging? A: The NORM, AGM, and COLD.