help powering breast pump from ac adapter? Answered
i bought my wife a breast pump cheap off ebay and it didnt come with an ac adapter. it runs off of 2 aa batteries but that gets expensive. from research i know the one that is supposed to come with it puts out 3v and 500ma. i have an old one with the right plug but it puts out 9v and 600ma. i have various other "wall worts" but none put out 3v. is there a way to use a resistor to make this work? i can buy a new adapter from the company but its $25, which is 3 times what i paid for the pump. thanks for any help.