Question about Norelco Health & Beauty

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I replaced the battery in my Norelco shaver (model 7825XL). When I made the last solder connection, the razor began to run and will not stop. What next?

I had to unsolder it to get it to stop. The stop button on the circuit board did not stop the razor from running. Any suggestions?

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  • Norelco Master
  • 1,602 Answers

Check the ends of the batteries nearest the motor. If the batteries are touching the leads to the motor, this will supply constant power to the motor.

If you batteries were seriously corroded, it may have traveled to the switch and ruined it

Posted on Apr 26, 2017

  • 2 more comments 
  • Ron Stanford
    Ron Stanford Apr 26, 2017

    old batteries not corroded, leads not touching. But when I touch leads to batteries, shaver runs. Problem appears to be the switch, but it was fine before.

  • shaveroutlet.com
    shaveroutlet.com May 08, 2017

    The part of the switch attached to the case should have a plastic prong on it. This prong pushes in the actual electronic switch on the circuit board. On the Quadra type shavers like you have, these prongs will sometimes break off or not align properly

  • Ron Stanford
    Ron Stanford May 09, 2017

    Sorry, not the plastic prong. Shaver runs when batteries are touched to leads. Switch button on circuit board seems to actuate in and out, but will not stop shaver. It acts like it's stuck in the 'on' position. No solder on switch.

  • shaveroutlet.com
    shaveroutlet.com May 09, 2017

    The only other thing I can guess is that you got solder somewhere on the board causing a direct link. Because it worked before you started, something must have changed in the process of you changing the batteries. If you are unable to locate and correct the problem, you may need to replace the circuit board. Contact Shaver Outlet directly for this part if needed 321-269-7724 or info@shaveroutlet.com

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SparkGap
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SOURCE: Replace a Norelco battery for 7825XL

Just de-solder the red and black wires and pull out the battery. Put it in a plastic bag to stop it shorting out on anything metal or cover the terminals with tape. The battery must be recycled properly as it contains toxic cadmium. As long as the battery is not leaking then it poses no threat to you. Refitting the new battery is just as simple, re-solder the red wire to the +terminal and black to the -terminal. Be sure to charge the razor as you would a new one i.e. 8 hours. Hope this helps.

Posted on Oct 01, 2007

  • 2 Answers

SOURCE: Norelco shaver won't turn off

You should check the switch behind the batteries. You likely dislodged the piece of plastic that presses on the switch. It's simple to place back properly--if that's what the problem is.

Posted on Aug 08, 2008

  • 91 Answers

SOURCE: replacing batteries in a 6705x norelco shaver

Hi,
To open up your shaver, remove the lotion cover and remove all 5 screws with a small flat head screwdriver. They have a star head, but also a flat notch. Since they shaver is water tight, the first time you open it up it will be difficult, but if you pry off with your screwdriver it should pop off.
Towards the head of the shaver the batteries are soldered to the circuit board. Pull the tail end of the batteries out of the plastic holder and cut them at the top end as close to the batteries as you can, or CAREFULLY bend it back and forth to snap the metal. Dispose of the batteries responsibly as you would any batteries.

Hope it helps you.


Posted on Jan 07, 2009

brector3
  • 1602 Answers

SOURCE: after soldering new batteries my shaver´s on-off switch won´t wor

it sounds like you may have some sloppy solder which is causing a continuous connection here there shouldnt be

Posted on Jan 16, 2010

cvstan
  • 40 Answers

SOURCE: Shaver was running slow and then died. Replaced

Your original symptoms sure sound like dying batteries. Brushes can wear out. Check if it runs better if you change the orientation of the shaver. Does holding it upside down make it work better or worse? If the speed changes, its probably the brushes. You can buy new brushes, but the Norelco repair place will probably give you a hard time since they want to repair it for you so you have to insist. I have made brushes for the shaver by filing down brushes from some other motor, but this is messy and doesn't always work.

Posted on Jan 23, 2010

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1 Answer

Hwo do you change out the rechargeable batteries? Is it worth the trouble or just buy a new one?


You will find batteries for model 7825XL at shaveroutlet.com. See link below

http://shaveroutlet.com/shaver-battery-pack-for-most-norelco-more-p-278.html

To replace, you will need to remove the back cover by removing the two screws on the back. You will then need to remove the two metal clips inside so that you can access the battery pack.

Batteries are soldered to the circuit board but for easier replacement, it is sometimes suggested that you use a modified installation technique. This is to break the tabs off of the old batteries rather than unsoldering them from the circuit board. This allows the old batteries to be removed but leaves the tabs attached to the circuit board. You can then solder the tabs from the new batteries to the old existing tabs

If you are not able to do this repair yourself, Shaver Outlet can do it for you. See link below

http://shaveroutlet.com/professional-battery-replacement-for-most-models-p-374.html

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Norelco 985rx Overheats upon charging..


You should always use the same type batteries that your shaver was designed to be used with. Your shaver was designed for use with NiCd batteries. If you have use NiMH batteries this may be causing the problem you described.
However, I would say that it is more likely that you have some sloppy solder that is bridging something that is not supposed to touch. You should check the battery solder joints on the circuit board and clean up any sloppy solder work that may be there.

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Replacing batteries in Norelco Razor 7886XL


Chris, All rechargable shavers have their battery(ies) soldered to the main circuit board inside the razor. In order to replace the battery(ies), you will need to disassemble the shaver by carefully removing the molded plastic cover(s) that hide the screws (which hold the shaver together). Sometimes located under the shaver head on certain Norelco models, others are under pressed in covers on the back and/or front.

Once you've done that, you have to be very careful not to dislodge any of the mechanical connections from the motor to the cutting heads. With the board exposed, you'll see the batteries, soldered to the circuit board via tabs that are heat staked to the batteries. Note which way the polarity (+ or -) are located on the board. Take a digital picture to make replacement and reassembly easier when you're putting everything back together.

Now with a pre-heated soldering iron, melt off the solder on the battery terminals and remove them quickly. Do not heat the tabs any longer than needed, so as to avoid possible damage to the circuit board. With the batteries removed, you might have to open up the thru-holes where the battery tabs go in, in order to get the new ones in place. Solder them into place and you're almost done.

Now reassemble the shaver and allow the shaver to recharge for at least 8 hours.

If you have any doubts about doing the repair yourself, you can have the shaver repaired by a service in Nebraska that specializes in replacement parts and service for all brands of electric shavers.

http://www.electricshaverstore.com/

They usually can turn around a repair in a week from reciept.

Hope you find this Very Helpful and best regards!

Aug 30, 2009 | Norelco 7886XL Electric Shaver

1 Answer

My battery will not recharge


The battery has finally degraded to the point that it won't hold or pass voltage, so yes it needs to be replaced. Luckily, with a few skills, such as disassembly and soldering, you can remove and reinstall a new, rechargeable battery that should get the razor working like a champ.

Electric Shaver Service stocks most rechargeable replacement batteries for almost all electric shavers made.

Here's a link to the battery page, just find your model and you're ready to go. If you want, you can call and confirm which is the correct replacement battery for your specific model shaver too.

http://www.electricshaverstore.com/search.asp?p=1&w=%5F&c=battery&t=s

Hope you find this Very Helpful and best regards!

Aug 16, 2009 | Norelco Health & Beauty

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Replace a Norelco battery for 7825XL


Just de-solder the red and black wires and pull out the battery. Put it in a plastic bag to stop it shorting out on anything metal or cover the terminals with tape. The battery must be recycled properly as it contains toxic cadmium. As long as the battery is not leaking then it poses no threat to you. Refitting the new battery is just as simple, re-solder the red wire to the +terminal and black to the -terminal. Be sure to charge the razor as you would a new one i.e. 8 hours. Hope this helps.

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