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The Theragun PRO is designed with a powerful motor that delivers up to 60 pounds of force, and has a customizable speed range of 1750 to 2400 percussions per minute. It features a rechargeable lithium-ion battery that provides up to 300 minutes of use per charge, and a built-in OLED screen that displays speed and battery life.

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Anyone completed a battery repair/replacement?

Anyone completed a battery repair/replacement?

Mine has just stopped taking charge.

Oh, the on button is broken as well...

EDIT:

It's the Theragun Elite (https://www.therabody.com/uk/en-gb/elite...) from a few years back - there is no swappable battery. Will post pictures tomorrow.

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@ststom I would check videos like like this one (lot's of smack talk) to get to the circuit boards (that'll help for the switch repair). As for the repair, not sure if you are thinking of repairing the batteries. That is actually relatively easy to do. All you need to do is to crack the case open and replace the 4 18650 2500mAh 30A (LR1865LD) batteries. Cost is about USD $6-$8 per piece. The cells are identical between Theragun models, but there seem to be changes in battery controller.

Theragun Pro 2

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Theragun Pro 3

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While you replace your battery and fix your switch, take lots of pictures. Once you are done with it, take those pictures and create a guide for iFixit. That will help the next person that has the same problem as you do. It's easy and fun to create these guides. https://ifixit.com/Guide/new The iFixit community will appreciate this.

Repair is War on Entropy!

Update (03/15/23)

@ststom looks like the same pain to take it apart, but I like the battery better. No hard case. Plastic wrap can be cut and removed. I would even bet it's the same cells in there :-)

Same principle different model. You got this!

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Thank you very much.

It's the Theragun Elite (https://www.therabody.com/uk/en-gb/elite...) from a few years back - there is no swappable battery. Will post pictures tomorrow.

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Just seen the update. Thank you!

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Hi all, I've also got this issue and have tried following the video above, but the casing on the Pro and the Elite are different. I've removed the plastic cover and all the screws, but can't see a way in after that - I don't want to wreck the casing any more than I already have. Did you take pics @STSTom ?

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@chrisbower If you want to post some pictures as an answer or even better create your own question. We can always fix the layout of this question later. Lets see what you got going on there.

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Wanted to post an update here since it looks like h1791story hasn’t yet.

I was having a problem with my unit showing that it was charged to 100%, but once disconnected, it would not turn on. When I would plug it in again, the charging indicator showed 0% and the process would reatart

I opened my Theragun Elite and tested the 18650 batteries with a multimeter - read as 0.3 V each, so this confirmed that there was a problem with the battery to the point where it wasn’t able to be recharged anymore. It seems the internals are not truly in sync with the battery, so it would read as charged to 100% even though the battery was not accepting charge at this low voltage.

I am a beginner at spot welding and handling 18650 batteries, but it was fairly easy to disconnect the 3 native batteries from the circuit and spot weld 3 new batteries (I purchased 2500 mAh 20A from bulkbattery) that were in series. I wasn’t able to record, but there are tons of guides on YouTube on how to spot weld 18650s, so I would reference any of those.

Once connected, the unit works again and also has an accurate charging indicator. Hope this helps someone - I am an absolute beginner with DIY projects but this was very manageable and fun to learn about the capabilities of 18650 li-ion batteries. Happy to answer any questions!

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@brandonbui74869

Hey I’ve got the new batteries in and the unit is running however I didn’t write down how I needed to hook up the red and the black cables coming out of the board that’s in the battery pack for charging. Anyway I attach it I’m not gaining any charge. Do you know how those were wired or have pictures?

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Can someone please post pics or describe how they disassembled the elite to get to the batteries. Where are they located? I've been able to remove the plastic on the switch side but the other 2 sides are not coming apart very easy. I don't want to break things if those sides are not needed.

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I just repaired one and It was hard to get it apart. The battery was a 3 cell and soldered on. 2 of the cells dropped below the cutoff voltage and the unit wouldn't charger I was able to get the unit apart just input to let the battery pack hang out. I cut the plastic off the battery and used a cheap charger to get each cell up to about 3v. The unit started taking a charge have I got the voltage up.

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Cheers, OG Style. This is the same silhouette as mine. Any tips on getting the unit opened up? Battery pack fixed in there at all? What's the charger you used? Not the Theragun one?

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I wasn't able to get the unit fully apart. I got it open enough to pull the battery out.

The charger is a really cheap 18650 charger. The model is Yonii C1. My nice charger would work and showed that the batteries were bad.

I fixed a Elite model.

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Yes today was easy all did was shock battery already in and worked instantly used ryobi 18v drill battery

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What does this mean and how do you do it? I like that it was easy!

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I think I know what this shock the battery means but don't understand I have only done it to dead batteries that been in storage and would t charge on the charger the battery came with I would touch the + & - with 12 volt car battery then try on the charger usually works Everytime but a fully charged battery this gun is put together well so if I cut a c cord that charged it test the wires for positive negative then polarize them for a second this should work if it's not the switch .

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I agree with the above and got it working again.

Its a %#*@ hard unit to open up, you need to pry the covers off the sides of the unit as well as the one on the handle. Take the screws out and then pry open the lower handle enough to get the battery unit out. This saves taking off the blue end of the unit where the part is that hammers.

I just attached a 6volt battery into the circuit (positive to positive etc) and it was enough to get a bit of a charge and shock the batteries into charging again when you plug it back in. I'm sure a 12 volt battery would have been better but thats all I has and it seemed to work.

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Good luck.

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STSTom será eternamente grato(a).
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