I am runningy first marathon planning on 5 hours 24 minutes. My running friends have warned me that my Garmin 405 watch will run out of battery power before I finish. Is this true and what can I do about it?

To set time and date:
1) With time and date showing,
press SET and hold for 2 seconds.
2) Seconds flash. Press START/STOP to set seconds
to zero.
3) Press MODE
.
Hour flashes.
Press START/STOP
to change hour, including AM (no symbol) and PM.
4) Press MODE
.
Minutes flash.
Press START/STOP to change
minutes; hold button to scan values.
5) Press MODE. Year flashes.
Press START/STOP to change year.
6) Press MODE
.
Month flashes.
Press START/STOP
to change month.
7) Press MODE
.
Date flashes.
Press START/STOP
to change date.
8) Press SET
, at any step, to exit and save settings.
With time and date showing, press SET
to switch between 12- or 24- hour time format.
Date (day of month) appears in upper part of display in Time
mode. Press and hold START/STOP
to see month, date, and year in large digits

Or go to:
http://assets.timex.com/user_guides/Marathon/W292-Marathon-AllLanguages.pdf

try this link > http://assets.timex.com/manuals/

is it manual or battery if batter replace it if manual windit up more

mcdevito75 here BEST BET, contact Garmen Forerunner at www.buy.garmen.com or 800-800-1020 8A--6P Central time if you live in the east that"s 2 hours before your time of day.

my lap reset button is stuck on my Garmin 405 and I've only had it a little over a year. Help.

I don't know what the trouble is with your watch. I can tell you every watch I ever owned ran 5 minutes behind. No matter when or where I set it nor how often I set it, within 24 hours, it was 5 minutes behind, never 6, never 4, always 5. After years of questions, I just accepted that my wrist watches would always be 5 minutes behind.

I presume the watch is new ... so cleaning is not a realistic problem. Maybe you should return it to the place you purchased it from and see what they have to offer.

Thanks for your question at FixYa.com

"lobatt" display is the watch battery. The foot pod uses the LED to indicate low battery and the heart rate monitor wont give a reading.

There are two steps for the firmware update - two bad Garmin doesn't warn people upfront.

The first update is preparing for the ANT stick - it takes about two minutes.
The second step is the core of the firmware(software per Garmin) update which takes about 10 to 15 minutes depending on how busy the Garmin Connect site is.

Since you already got through and got the "unsuccessful" message, I assume you already know how to start the update properly.
To finish it - Make sure you do not interrupt the process, just let it run through the 2 steps mentioned above.  And be patient - the 2nd step follows the 1st step automatically.  Don't touch the bezel and change screen during the update, just leave it alone.  It took me a few times to get it done successfully because after the 1st step finished, I started to flipping screens to find out if it get updated to ver 2.50, before I found out there would be step 2 coming automatically.
If you see the process bar moving after the 2nd step and see "software loading" you are in for good.

Hope this may help.

I just find it unbelievable that there is no off button on this watch. I dont want to use it as an everyday watch..its too big and ugly for that.Also you have to remember to turn off the gps as it will drain the watch overnight.You have to switch the gps on every time you do a run. I simple on and off button is all that is needed.It is just a matter of turning it on when you go for a run and you are ready to go. Same with all 'latest ' products..they give you the improvement over the last model but give you a downside...which will probably be corrected on the next incarnation....very clever marketing.!

It should go into power save mode on its own after a period of inactivity. Make sure your timer is stopped and your workout has been reset. If the timer is running, it senses activity and stays in normal operating mode.

I just solved another problem where a 405 would go into power save mode but would not stay there. After a minute, it would come out and go back to normal mode and quickly drain the battery as it went back and forth between the two. I installed a software update to get version 2.30 (mine came with 2.10) and that appears to have fixed the problem.

Go to Settings, System, About and check which version of the software you have.

Chris