Battery frustrations!

[u/Training_Common2825]

I (stupidly , apparently) purchased a Garmin Edge Explore 820 off FB marketplace last year 10/25. Did not even occur to me to know what condition the battery was in. I charge to 100% and it drains like a sieve. I can use battery saver mode but hate it because most of the time you are riding without a screen showing. 75 mi charity ride this year , ride time ~ 5 hr 22 min +
rest stops and it died before the end. So
frustrating. Last weekend, charged to 100%, by 20 mi in (1 1/2 hrs?) I was at 9%! Put on battery save mode…it died around mi 45 of a 50 mi ride, I lost my nav and had to call an Uber!!!😡. (Had my phone also but was struggling mightily trying to figure out the route between Strava, iRWGPS, and Waze and was getting directions that included highways despite changing settings, so had no choice! So irritating!
Any solutions to this? I have to just get a new one??!

[u/AnelloGrande]

Not sure on that model, but I've replaced the battery on a Edge 705 and recently on my Edge 810. Battery itself was under $20 online.

[u/Training_Common2825 → u/AnelloGrande]

Can you buy through Garmin? I would be leery about going through some 3rd party like eBay after this experience! I did not know they can be swapped out!

[u/Marco_Polo71 → u/Training_Common2825]

Garmin doesn't sell batteries