Not had this issue. Have you tried a different cable? Can pick them up cheap from amazon, Ebay. Tried cleaning the contacts on the watch?
I do the same, I only change the watch for about 10 mins every day when showering which keeps it topped up. Never switched the watch off (only restarted following a firmware update).
If it doesn't power on now and you cannot charge it I guess its time to go through Garmin support and get a replacement. Good luck.
reading this I can only say that you do not know specs of the watch - that it lasts up to two weeks and maybe due the number of your miles it can last up to 2-4 days. I don’t think your battery liked your behavior to charge it every single day. But anyway I would change first of all the cable/socket/power source to see difference and eventually ask support not forum
Off topic, but quote "reading this I can only say that you do not know specs of the watch". You have no idea how many miles I or the OP do. How long GPS is on and what other features are enabled. Modern batteries work better with trickle charging than running down and fully charging and keeping a device at a decent level of charge will allow you to take part in a 6-10 hour activity without the risk of a device powering off half way through.
You have no idea how many miles I or the OP do. How long GPS is on and what other features are enabled.
I'd say that's precisely why mihailstacanov asked the OP why he charged it every day. You didn't let the OP answer him.
Keeping batteries continually at a high state of charge is harmful on some batteries. It can also disrupt the ability for some devices to determine the state of charge if they are so configured. (Many cell phones use complex methods to estimate battery state and will become wildly inaccurate if prevented from ever experiencing a low charge.)
I do not know the particular chemistry or makeup of the Instinct's battery, but given it was designed to be worn for extended periods of time without charging, I think it's safe to assume Garmin used a battery that was well suited to long slow drains and rapid charges back to full. Different chemistries cause wild differences in what charging practices are best for a battery.
An extreme example is the Li-Po batteries in my drone will degrade if left at 100% for extended periods, and are stored at 50% charge and refrigerated in order to maintain their ability to deliver large amounts of power for their size and weight once brought to room temp and charged. Many Lithium cell phone batteries, the technology I suspect is closest to what the Instinct uses, prefer to always be between 20%-80% or they will degrade. Automotive batteries, like the 100Ah deep cycle AGM in my truck, would be perfectly fine at 100% and on trickle charge indefinitely.
Batteries are a big rabbit hole to go down and it takes someone with a lot of technical expertise to maintain them ideally. Most devices are designed to give decent life even if you don't treat them ideally, and 10 weeks is pretty short even if one was doing something totally against the best practice. So my money is on a problem with the battery if it's not the ability to connect a charger.
Ideally I'd suggest charging the watch only when it gets decently low, perhaps one or two bars, or when you know you will need to use it for an extended GPS session soon. Some batteries loose life the more they are cycled, but all batteries will degrade anyway if they are never cycled. (And some NEED to be cycled occasionally.)
For the OP, I agree with the suggestions already made that you ensure it's not your charging cable, a dirty charging port, or power source causing the issue, and if you rule that out, get with Garmin support, describe your devices current behavior, and let them figure out what caused it. It is not unheard of for the occasional device to get a faulty battery.
runn - This does not seem like a normal occurrence and I would recommend reaching out to Product Support for further assistance as Airmapper suggested.
Not OP but, it's much more convenient to charge it while I shower than to charge it every time it gets low. This allows me to never miss any sleep tracking, workout, or steps from poorly timed battery maintenance.
