Help for a battery replacement by an electronic circuit

[prasoum]

I have an elliptical exerciser that needs 4 D batteries. These batteries are bulky and expensive so I am thinking of replacing it with an equivalent electric circuit. One of my friend suggest to get an ordinary 6V converter, remove its lead and connect it to terminals where batteries are connected. Is this correct? Please help...

Thanks

 

[crutschow]

A wall-wort supply that generates 6VDC should work. You may need to measure the current that the exerciser is taking from the batteries, so you know how big a supply you need.

Alternately, you could use recharageable NiMH batteries.

 

[prasoum]

crustchow thanks...

any hints on how to figure out the current ratings...Should I look into manual or I can measure it using a voltmeter....

Thanks

 

[prasoum]

I just looked at the manual and there is no indication of how much current it draws from the batteries. Company sells the console as a complete unit so doesn;t give any details about the current. How can I figure out the current in this case...

Thanks for your advise...

 

[blueroomelectronics]

Just use more than you need. A 1.5A 5V SMS wall adapter can be found cheap.

 

[prasoum]

Sorry for being ignorant...

What is SMS...any advice where I can get it...

Thanks

 

[blueroomelectronics]

Switch Mode Supply. eBay has em cheap.
**broken link removed**

 

[GonzoEngineer]

What is the manufacturer name and model number of the exerciser?

Do you have a Radio Shack available in you neighborhood?

Answer these two questions correctly, and I can tell you what to buy and how to hook it up.

(But if had designed that exerciser, I would have built in something to use your exercise energy to power the electronics!)

 

[prasoum]

GonzoEngineer

Yes I do have Radio Shack near my place...

manufacturer name - PRO-FORM 4.0 X and model number -PFEL73207.0