Where can i find the batteries on an older model lifestyles stepper

Check the speed sensor
If you wish to get some details; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/

There are different types. You should make sure about the model number to this unit first, before buying a new one. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter".
http://electronicshelponline.blogspot.com/

Error 5 No Slack on Cybex and Tectrix Steppers Climbmax 2000 3000 700S 800S
Error 5, No Slack, Cybex/Tectrix Climbmax 2000/3000, 700S and 800S Steppers Probable Cause An error 5 on the Tectrix Climbmax models 2000 and 3000 as well as Cybex stepper models 700S and 800S indicates the following:
a) Test switch is in test mode.
b) Possible cut in display cable.
Corrective Action a) Adjust slack switch.
b) Inspect display cable; Replace cable if necessary.

Replacement Parts for Fitness Exercise Equipment at SPORTSMITH

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I need to know the Battery is. I bought a used one, but the battery s dead.
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028,017,033,018,047 are the codes to check. If you wish to get more setup codes, three digits, four digits or five digit ones, check this link. Pull up older posts there. Setup code list and setup instructions to some popular model remote controls are given. Select the 'Timeslide' option from the drop-down list by the 'Sidebar' at the display window. It will make search easy.

Check your speed sensor. The gap has to be pretty exact to function correctly. The following link will help you in this regard.
Troubleshooting No Resistance on Stairmaster Stepper 4400CL and 4600CL

http://www.sportsmith.net/ Click on your model number for access to an owners and service manual. The below link will also take you directly to the battery for your machine. Battery 6 Volt Stairmaster SM14123 SPORTSMITH net

Exactly how "broke" is the remote? (pictures help here, but if you don't know how to post one, or how to keep it under 150KB in size, then be as descriptive as possible in a REPLY to this post.

Call Icon Fitness @ 1-800-999-3756 they are the manufacturer of your stepper.

The best way to do this is to take your OPTICAL AUDIO OUT from your TV - (if it's a newer TV) - plug it in to the OPTICAL AUDIO IN on your BOSE system, then use the 'TV' source on your Lifestyle 38 to get the sound from. I have sound for X-Box, DVD player, Blue-Ray Player and Wii being pushed through the TV back to the BOSE and it sounds great. I don't have to change the source on the BOSE very much either - except when I listen to stored music!