DIY auto topoff without a relay

nanomania · Aug 3, 2016

Hey, is it ok to use a 3v or 6v power adapter? Not being able to find battery holder here, online on ebay it will take another 1mnth to come..

nanomania · Aug 4, 2016

Will this work? Plz reply

cmcoker · Aug 4, 2016

I used the batteries to avoid plugging into the wall, I didn't want to connect a float switch without a relay to main power.

But it probably would be enough power for the pump...

Could try taking apart an old remote control for the TV and see if you can pull a battery holder out of it..

Melevsreef.com has an older post of his ATO without a relay being used, and he's using an low watt, ac pump... http://www.melevsreef.com/node/684

Its going to have to be your discretion whether you try that power adapter. Do you still have/use the Walkman it's for? Might be able to use the battery holder out of that...

drernesto · Aug 4, 2016

nanomania said:
Hey, is it ok to use a 3v or 6v power adapter? Not being able to find battery holder here, online on ebay it will take another 1mnth to come..

Yes it will work... You just need any 3-6V direct current.
Your not in the US? Because this one is 220v and the US works on 110V
Be carful with the polarities... If you put it in inverse you'll lose the device hooked to

cmcoker · Aug 4, 2016

drernesto said:
Yes it will work... You just need any 3-6V direct current.
Your not in the US? Because this one is 220v and the US works on 110V

He's in India iirc

drernesto · Aug 4, 2016

cmcoker said:
He's in India iirc

Ah ok... So it will work fine

nanomania · Aug 4, 2016

drernesto said:
Yes it will work... You just need any 3-6V direct current.
Your not in the US? Because this one is 220v and the US works on 110V
Be carful with the polarities... If you put it in inverse you'll lose the device hooked to

Im from India. What is polarities?