Question about Garmin Forerunner 305 GPS Receiver

2 Answers

Change Battery in garmin forerunner 305 - Garmin Forerunner 305 GPS Receiver

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  • Anonymous Jul 18, 2008

    how do you change the battery on these units?

  • mydoc Sep 01, 2008

    Any suggestions for changing battery in the 205

  • Anonymous Apr 01, 2009

    I need to change the battery on my Garmin Forerunner 50 - any tips?

  • Anonymous May 07, 2009

    The battery of my forerunner 305 is dead. Is there anybody who knows where to get a new battery and how to mount it?

    Or is there a supplier who does this?

  • Anonymous Mar 23, 2014

    Garmin has frozen. Battery life shows in the top left hand. Garmin on the screen shows. Nothing happens.

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2 Answers

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Might not be the battery.My wife's was always powering off during runs. Then it would not power on at all. There was a connection inside that wasn't making contact. But first First try cleaning the 4 brass connection tabs on the watch and check your charger to make sure the tabs are raised and not squished. Second try to reset the unit. Hit mode reset and power buttons all at the same time. Hold these for 3 seconds and then release. If these do not work here is what I did. There are no screws holding the unit together. I used a exacto blade to very carefully pry the unit apart along the side seam. It's not easy to do. Be very cautious and gentle. Work the thickness of the blade into the joint to gently wedge apart. You are not trying to remove material! Once apart you will see some brass fingers that make a connection between the upper and lower part of the unit. This is where the problem was with my wife's 305. I gently raised these tabs to make a better connection, It's been working ever since. I didn't try it before but try pressing very hard on the unit where it says Forerunner 305. The case is very hard so it might not work. But if it powers up when pushing you found your problem. Hope this helps.Here is a link I found on opening a 205 (Same process) http://ctorunner.googlepages.com/dismantleforerunner205 To put the unit back together use Automotive silicon/gasket maker.Use a tooth pick to put a VERY small amount of silicon around the entire seam. Put the two half's together and wrap tightly with electrical tape. Test the unit immediately to see if it powers on and off. If it does not open it back up and raise the small prongs more that make the connection from the bottom half to the top half. If any silicon squishes out the sides wipe with water and a rag.Let the unit sit over night. In the morning remove the tape.

Posted on Jun 09, 2009

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SOURCE: replacing battery on Forerunner 305

Well it is an accumulator instead of a battery so just recharge it.
If the accumulatoris gone I think you have to use the garmin support

regards,
Ralf

Posted on Aug 21, 2008

  • 1 Answer

SOURCE: Forerunner 305 battery

it's been two weeks since i bought my IPOD ,but haven't played because of these battery problems.

Posted on Mar 04, 2009

jgr4
  • 9 Answers

SOURCE: Garmin Forerunner battery replacement

I used the battery from a sumsung hue cell phone.
http://www.jimandkatrin.com/codeblog/2009/08/forerunner-305-battery-replacement.html

Posted on Aug 15, 2009

  • 84 Answers

SOURCE: My garmin forerunner 305 HRM suddenly stopped

I found this on the internet......

In the battery compartment there’s a gold contact that touches the top of the battery (+ve) which was in a position that would never make contact with the battery. I bent it out slightly, made sure the battery was seated correctly (i.e. flat) and as if by magic my heart rate appeared on the large Garmin display!


Also found this..........

I Have had the same problem couple of times (and forgotten each time how I solved it). I figured it out just now and this is what I did.

1) turn on unit and put on heart monitor (make sure battery is good and wet heart strap)
2) using the mode button navigate the menus to: Settings: General: Accessories: Heart Rate Monitor
3) Once in the Heart Rate Monitor option make sure "Yes" is selected and then use the arrow buttons to highlight "Restart Scan" . Press the enter button to rescan for your heart monitor. (I had to rescan twice)
Go back to the main monitor screen to see if you are recieving heart rate signals.

I am not sure why a manual rescan needs to be done every time but it would be nice if Garmin fixed this issues in a unit software update (my unit has software version 2.80

Posted on Nov 13, 2009

  • 638 Answers

SOURCE: Forerunner 305 GPS Receiver: How can I change my Garmin 305 from miles to kilom...

Page 48 of your manual, Changing Units of Measure. Settings > General > Units

Posted on May 20, 2010

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Garmin Forerunner 305 won't turn on and won't charge. Is there a fix or is this it for the device?


Look at
"http://www.activesplit.com/my-garmin-forerunner-305-doesnt-power-on-its-just-dead-solutions/"

You can soft reset or hard reset the device. Hard reset deletes all data.

Apr 01, 2010 | Garmin Forerunner 305 GPS Receiver

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GArmin 305


It's not easy to change... here is a link showing how to take it apart.

A local battery shop should be able to find a replacment but it has to be soldiered in...

http://ctorunner.googlepages.com/dismantleforerunner205

Nov 26, 2008 | Garmin Forerunner 305 GPS Receiver

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Replacing battery on Forerunner 305


Well it is an accumulator instead of a battery so just recharge it.
If the accumulatoris gone I think you have to use the garmin support

regards,
Ralf

Aug 11, 2008 | Garmin Forerunner 305 GPS Receiver

1 Answer

Forerunner 305 battery


it's been two weeks since i bought my IPOD ,but haven't played because of these battery problems.

Jul 27, 2008 | Garmin Forerunner 305 GPS Receiver

2 Answers

Battery doesen't keep the charge. I can't open the case to change battery forerunner 305


Hi Samdot,

I have just been through a similar problem through ingress of water into the device (They are not in the slightest bit water proof)

My device would power on, but only in the cradle attached to the usb and it would say the battery was fully charged after 4 seconds.

Any way, the battery can be replaced using the following method.
Take a decent, thin penknife and gently lever the top off the Garmin (follow the crease above the buttons). There are no catches to be aware of it is just lightly glued.

Once the lid is off you will be able to remove the two circuit boards (they just sit in there) and you will see the battery in the bottom of the case.

Unscrew the two small screw above the battery connections and you will be able to replace the li-ion battery which is in place.

I can provide images if that would be useful.
Phil

Jun 17, 2008 | Garmin Forerunner 305 GPS Receiver

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