Outin has a 12-month warranty. If there is any problem with the product, including battery problems, within 1-year warranty period, we promise to replace it with a new machine. And we encourage consumers to go to local recycling stations for E-Waste. If you can provide us with proof of electronic recycling, we will donate to TNC in your name. If the purchase time of the product exceeds the 1-year warranty period, we can not provide free replacement service. But we still encourage consumers to go to local recycling stations for E-Waste. We will donate to TNC in your name if you can provide us with proof of electronic recycling. You will also get an exclusive discount that can be used on your next order.