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How To: Replace the battery in your Liberty or MegaVox Pro systems

February 20th, 2008Posted by Steve Tipon in Featured, How To

Today we are going to walk you through the correct procedure on how to replace a dead battery in either your Liberty or MegaVox Pro portable sound system. For your convenience there are two versions of these procedures to view: HTML or PDF.

Liberty Battery Replacement Procedeure
Download the PDF version here

MegaVox Pro Battery Replacement Procedeure
Download the PDF version here

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66 comments

  1. Derek says:

    Looking at buying an MPA4500 used and was wondering if that could be made into a battery powered unit by adding the batteries and charging unit like on the MPB4500? Doable?

  2. Karen says:

    We have two Liberty sound systems, one a 6000 series and one a 4500 series. The 6000 went out and the backup, the 4500 is also dead. Was told it’s possibly the battery. Have the instructions, but need to know where locally (I’m in Gurnee IL) or online I get get the batteries for BOTH systems.
    Thanks!

  3. Hi, I’ve used my Anchor Liberty MPB 4500 for many years, but lately it seems fine when I set it up and test it but about an hour later the batteries appear to be dead. I imagine I will need to replace the batteries. Can you suggest an inexpensive way to do this? I’ve read the how to – pdf and watched the slide show. It’s a little intimidating but getting the right batteries seems to be the most important part. Can you help me? Thank you, Jeanne Thomas 415-242-1962

  4. Jane Hill says:

    I am also interested in finding out your dealers to purchase batteries for my 4500 PA system.

    Thanks, Jane

  5. Pam Peters says:

    My ele. school has a Liberty 4500. The blogs were helpful as to how to replace the batteries. My husband can do that. He is a technician. One other problem: whenever you touch the bass knob (turn it up or down) the unit clicks & shuts off. I can turn it right back on & it works fine as long as I do NOT touch that knob. Suggestions on how to fix this? Can we buy a new bass pot?
    Thanks,
    Pam

  6. Joe Paris says:

    Does anyone have the schematic for the Anchor Liberty System with a build in CD player? I had to replace the batteries and wires got mixed and the system only ran on the battery until it ran down. It is not operating when pluged into an outlet and the green charging light does not light up at all. HELP! I need the system 6-12-10 for a Father’s Day Event in the downtown green space area of Football Hall of Fame City.

  7. Eric Imig says:

    I need a schematic for a Liberty System

  8. Rolando says:

    I have a Liberty 4500 that I removed the batteries to replace them and stupid me didn’t label were the wires go.

    Can someone help me please?

  9. Rolando says:

    Please help!!! See my last post!

  10. Zeek Duff says:

    Hey Rolando,
    Looks like you aren’t getting an answer, so perhaps following this link will help, it’s to a slide show demonstrating the whole battery changing process. You can see in the pictures how to replace the color-coded wiring. If that still doesn’t make it clear for you, there is a phone number at the end for tech support. I don’t own one of these, was just researching them and saw your query AND this: http://www.anchoraudio.com/blog/libslideshow.html

    Hope that helps, and good luck!

    Best regards,
    Zeek Duff
    Longmont, CO

  11. John Quelch says:

    Can you tell me which batteries I need for my Liberty MPB 4500? The Serial Number is HD-K980022. Thanks, JRQ

  12. alexj says:

    You need two LIB-BAT. Call Anchor at 800.262.4671 to order.

  13. Carlos Serra says:

    hi, i need the schematic to repair one Megavox PB-35W. Battery don’t charge. Battery is new.
    Thank You.

  14. bonnie leach says:

    Where do I find a battery for my MegaVox PB 35? Also interested in the wiring diagram.

  15. alexj says:

    Bonnie…..you can purchase a battery at http://www.discountaudio.com and get wiring diagram from stevet@anchoraudio.com.

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