edwinchester Posted July 4, 2018 Share Posted July 4, 2018 Hi, I have just bought a small water pump. It is 12v 18watt. Now my schoolboy science memory tells me that is 1.5amp. Will a 12v 1.5amp power adapter be enough or will it be ok to get say a 3 or 4 amp adapter? Thanks for reading. Link to comment Share on other sites More sharing options...
johng Posted July 4, 2018 Share Posted July 4, 2018 Better to go with more amps than is needed. 1 Link to comment Share on other sites More sharing options...
Crossy Posted July 4, 2018 Share Posted July 4, 2018 Yeah, bigger is better, certainly no less than 2A. Note, the pump may need a large starting surge which even a large power supply may struggle with, these things are intended to work off big batteries. Link to comment Share on other sites More sharing options...
edwinchester Posted July 4, 2018 Author Share Posted July 4, 2018 Thanks for the replies, much appreciated. Link to comment Share on other sites More sharing options...
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