Einleitung
Diese Anleitung zeigt dir Schritt für Schritt, wie du den Akku einer Garmin Fenix 3 HR austauscht.
Was du brauchst
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Schraube die fünf 7 mm Schrauben mit dem H1.3 Sechskant-Schraubendreher heraus.
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Benutze ein Hebelwerkzeug aus Plastik, um das Display vom Gehäuse zu trennen. So kommst du an die inneren Komponenten.
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Du wirst ein kleines, loses Metall Stück sehen. Das ist die GPS Antenne, welche auch entfernt werden muss.
The GPS antenna is truly loose. It is not attached at all, but has to pins that guide it to a physical contact to the motherboard. It will literally fall out if you turn the open watch over. Replacement can only go one way.
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Löse das Flachbandkabel mithilfe einer Pinzette vom Motherboard.
The ribbon connection end just needs to be used pulled up. No need of force.
You do not need to disconnect the motherboard for this, and it is challenging to reconnect without risking damage. Recommend leave it attached and move onto next step
Hi Mark, can you still remove the 5mm screw adjacent to the ribbon if you will just leave it attached?
You can remove the display ribbon cable by gently going back and forth with tweezers lifting each side of the connector. It pops straight up off of the motherboard. I initially did not remove this, but then had some issues later with attaching the batter so I removed it. Reconnection just requires lining it up and press with your thumb. It will “click/pop” when it snaps into the connector when reattaching.
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Schraube mit einem T5 Schraubendreher die beiden 5 mm Schrauben heraus.
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Ein weiteres Flachbandkabel ist oben mit dem Motherboard verbunden. Trenne dieses vom Motherboard.
Fenix 3 does not have this ribbon.
Fenix 3 HR does. It goes to the HR reader in the back of the case. The connector was covered by tape so I did not disconnect this. Just be careful not to pull on the cable.
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Löse die Kabel, die den Akku mit dem Motherboard verbinden.
The battery connector just needs to be used pulled up. No need of force.
Yes, not pulled backwards, just straight up. I wish I had seen this comment before hand. Maybe Victor could add it to the notes? Otherwise a great guide.
Battery PN = FLPB342735-P1 - Li Ion 3,7V - 290 mAh
I broke the black piece off the motherboard….. is this fixable?
Did you find an answer to this? It was disconnected when I pulled the motherboard off. That is the reason it was not working for me.
This was the most challenging part. It actually took a surprising amount of force with the pointed tweezers to lift this straight up off of the connector. It does not slide in/out to the wire side, but comes straight up off the connector. I thought for sure I was going to break it. I think you could pull up on the wires of the old battery but you may pull the wires out it was so tight. That really doesn’t matter because you are going to dispose of the old battery.
this really teh messy part. Even after I broke the connector from the mainboard I was not able to remove the white part from the black one. so now this is the end for my Garmin fenix 3HR .
The battery I received from iFixit doesn’t work with my Garmin Fenix 3 HR watch. Once installed the watch does not turn on. Plugging it in to charger give me Garmin logo and then 100% Battery indicator. However when I remove from Charger, watch shuts off again. iFixit sent me two different batteries, but they are the same model number (CS-GMF300SH). Again, these batteries don’t work with my Garmin Fenix 3 HR. My original Garmin battery still works in watch, it’s just no longer staying charged much longer than about 4-5 days, hence my attempt to replace.
Had the same issue, not iFixit batteriets though, but got the logo, 100% battery indicated but instant death after removal from charger. Everything worked fine after i reopened and reattatched the power cable from the battery to the motherboard. Im guessing the fault could be a simple loss of connection between the motherboard and the battery during reassembly. Just try again…
Like others, I wasted about 15 minutes trying to detach this connector sideways rather than upwards. It would be helpful to refer to this in the instructions.
The black connector was not attached to my motherboard other than through the tiny pins. They snapped right off as soon as I touched it. Goodbye, unless I cut of the connector from the battery (without short circuit) and solder the cable to the motherboard.
I managed to solder it. I took the wires from the old battery and soldered it to the motherboard. Then I cut the connector of the new battery put on heat shrink tubing and soldered it to the cables. It was not easy, very fiddly. Would not recommend to newbies, but at least it’s possible so don’t throw away the watch if this happens, sell it for cheap to some fiddle guy.
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Der Akku ist an das Motherboard geklebt und muss mit einem Nylon Spudger gelöst werden.
This was pretty easy to remove. More of a double sided piece of gummy tape or something. However, the battery from iFixIt does not have the tape so I carefully pealed the tape off of the old battery as I could not find any double sided tape at my house.
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Where is everyone getting batteries from? I purchased one off Amazon and it only lasted two hours after charging overnight. Thank you
The battery connector PRESSES in from the top. It does not slide in.
What type of glue should we use to glue back the battery?
As Gale commented, the connector presses straight down onto the connector. I had a hard time getting both sides of the connector down. It will be level with the top of the black “dock” on the motherboard when it is all the way in. One side on my new battery went in easily, but it took some force to push the other side in. When you reassemble, do a test with no screws in to make sure the watch powers on. The battery has to be pretty well pressed against what I think is the vibrator motor on the left in the picture above (covered by the guy’s fingers) or the motherboard won’t fit back in the case. Easy to spot if it is not in the correct position when you try to reinstall the motherboard/battery.
When reinserting the motherboard, I had to insert one end first. I think it is the side on the right in the picture above. It would not go straight down into the case. Take this opportunity to wipe off the gasket around the case.
Any additional information on the glue/adhesive type that should be used? Thanks.
hat alles toll geklappt. Das Problem mit dem Akku-Kabel hat mich auch etwas beschäftigt: nicht seitlich draufschieben, sondern von oben draufdrücken.
Batterie von Subtel in Frankreich gekauft, funzt super. Ein Problem nach dem Zusammenbau geht der Barometer nicht mehr, habe ich da etwas kaputtgemacht? Und noch ne frage ist die Uhr wieder so dicht und wassertauglich wie vorher?
Be careful when reassembling the motherboard to press firmly to make sure that the charging pegs touch the bays on the motherboard, otherwise it will NOT recharge for lack of electrical contact.
Um dein Gerät wieder zusammenzubauen, folge den Schritten dieser Anleitung in umgekehrter Reihenfolge.
Um dein Gerät wieder zusammenzubauen, folge den Schritten dieser Anleitung in umgekehrter Reihenfolge.
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Does anybody do It in a fenix 5?
Same question. Fenix five /+ guide on the way?
Thank you. It saved me around over £100 to change the battery myself. Garmin quoted around £121 for battery replacement for out of warranty watch. I bought the battery around £15 and followed the guide to change the battery myself in my Fenix 3 watch. My watch does not have heart rate monitor, perhaps the ribon at step 5 is for HR monitor as I didn’t have it in my watch. Thanks again for simple, detailed and easy to follow instructions.
Where did you get the battery?
Alex -
Amazon or other 3 Party Sellerie use google for search the are tonns of Shops wich sell it
Howdy,
Followed all your steps but now the new battery will not charge. Could I have missed something in replacing the battery somehow? Pins not making contact or so?
I had a similar issue, I think you need to make sure the screws on the battery board are firmly tightened. Seems odd but worked for me
adagnall -
I’ve just followed these steps, and with £4.50 for a precision torx set, and £14.50 for a battery that came the next day by UPS, it’s saved me loads. The couple of things I would add are - you can use double sided tape to attached the new battery, and buy a battery with the connector already attached unless you are an electrician it saves the fuss, and make sure the connector is fully in place, it’s easy for it to be marginally out and you’ll get no power.
thanks!
Do you think there’s room to put a larger MaH battery in there?
Thank you very much. Clear and easy to follow. I would only add there how to detach the battery. Not to pull but pull up from the motherboard.
Thanks
What about the seal after replacement ? Is it preserved so water does not pernetrate ?
Has anyone had issues with the waterproofing after this repair?
In my fenix 5 the battery connector is welded to the socket. Impossible to extract.
Ciao Alessandro,
a breve cambierò la batteria. Davvero hai trovato i connettori saldati??
Puoi dirmi il codice del tuo fenix 3. Non vorrei che anche il mio fosse a saldare….
Ti ringrazio.
PS: sai se esistono batterie un po più capienti per il nostro Fenix3?
Grazie.
I’m looking for a guide for replacing the heart rate sensor on a fenix 5X. The resin covering the sensor is starting to crack and deteriorate after only a year and a half of use.
I know my Fenix 3HR had an issue similar to this on the sensor. It was a known defect with Garmin and they replaced my watch. I’d check with their customer service.
Ben Eige -
I bought new battery replaced it with this instructions. Everything is working but the problem is that the new battery is weaker than the old one. It is discharging much more faster. Could it be that I need it to charge couple of times to see? Has anyone had this problem with new battery?
Hello,
does the fenix 5 battery fit the fenix 3?
Be very careful when disconnecting the wires that connects battery to motherboard (step 6). In my case the black socket broke off from the motherboard. Watch destroyed :-(
This guide works perfectly!
I used double sided tape to stick the replacement battery down.
Worked great. Did’nt find any double sided tape. Found some Kapton tape and wraped it around battery with sticky side out. Worked very good.
Is there a place to buy a new o-ring?
What do you use to glue back the battery???
I was expecting the glue would just "stick" but it's not the case at all...
Thanks, saved me from buying a new watch. GARMIN refused to fix it.
Hello,
Great tutorial! Can someone please tell where can I find a replacement battery for Fenix 3HR?
Thank you so much!
Thank you so much for the information as Garmin Australia was absolutely no help at all when I asked them how to free the buttons that wouldn't move on my Fenix 3 watch. They said to soak it in a bowl of warm water for 10 minutes, remove and airdry, which did and absolutely no results. I re-phoned Garmin Australia and they said to purchase another watch, the Fenix 7 and they would give me a 20% discount. My watch initally cost $NZ1750 and you would think Garmin would have a service department, but apparently not. That's the last Garmin I will ever purchase and that includes any marine navigation products.
Why is a H1.3 being used here when the screws look like TORX?
Stuart Kerr - Antwort
They are in fact TORX bits. A T5 driver fit neatly.
Matthew Cole - Antwort
On my watch, it was T6. T5 is pretty loose.
Frederic Huebner Jr - Antwort
Thanks for that perfect replacement guide.
Lucian Cajacob - Antwort
is a t6 torx not a t5 or a H1.3!!
roter spieler - Antwort
Ifixit description for Fenix 3 (without HR) says t6, which is correct. The two screws inside are however t5.
Björn Sjögren - Antwort