Part of the Complete Installation Kit from NewPower99.com, available at http://www.newpower99.com/ProductDetails.asp?ProductCode=GARMIN+NUVI+350&Show=ExtInfo
If your Garmin Forerunner 305/205 won't power up, or if the battery won't hold a charge; you will be happy to know that replacing the battery is very cheap a The watch displays the hours of battery life gained with each setting change. Select During Sleep to enable the battery saver feature during your normal sleep hours. TIP: You can set your normal sleep hours in the user settings on your Garmin Connectโข account. It's a 180 mAh battery. Edit 2023/08/09: I did it! A few weeks ago I found an ebay listing with the replacement battery for my Garmin Fenix 6s pro. I received a battery labeled 361-00086-11 but it looked exactly like the original -12 variant and had the same specs. So I went ahead, took the watch apart, ripped the old battery out and put the S60 Battery life. I've been using my S60 for over a year with no issues, however came to put it on to play yesterday and battery was at critical level which was very unusual because i charged it in the week. So i charged it fully during yesterday afternoon and then unplugged it. Went to put the watch on today and again the battery was at . 250 352 97 303 118 251 379 17 202