1. A 100 watt solar panel requires a fully charged battery. It will take approximately 2 days for your battery to be fully charged.
2. Look at the battery discharge current. A 100AH battery discharges at 55A and discharges in about 1 hour; a current discharge of 70A discharges in approximately 30 minutes. is not random. It is recommended to use too much current, otherwise, on the one hand, the discharge time is too short, on the other hand, it will harm the battery life. Thus, for a 100A battery, the power of electrical appliances should not exceed 600W. You don't need to use an electric kettle, but you can use a rice cooker.