Slow charging Garmin Xero C1

[Fire Dog]

Lately I have noticed that it is taking longer and longer to fully charge up my Garmin chronograph.
Now been on charge for two days and only 99%..!
Has anyone else noticed this problem?
It is about 2 years old but I would think that considering the cost the battery should last longer and recharge quicker than is now the case.

 

[Krogen]

Have you ever completely discharged the battery? Battery "gas gauges" need to be reset now and then. They typically count coulombs to make a guess at the state of charge. To do it with reasonable accuracy, they need to know where fully discharged and fully charged are. That's why it may be showing 99% but be fully charged. Try running it all the way to empty and then charge it all the way up without disconnecting it from the charger. Before anybody calls me a fool, I'm a power conversion engineer. Trust me. This is how most battery "gas gauges" work.

 

[Big_Daddy]

....... Before anybody calls me a fool, I'm a power conversion engineer. Trust me. This is how most battery "gas gauges" work.

Now come on Krogen.......no one on here would ever argue or resort to name calling.

 

[Tommie]

coulombs

Sounds like a nonsense word. Just shows what a dummy I am. Far as I’m concerned, electricity is magic pixie dust.

 

[Bottom Fodder]

Rechargeable batteries can develop a memory, they need to be cycled low every so often and not be “toped off” every timed their used

 

[Bottom Fodder]

Sounds like a nonsense word. Just shows what a dummy I am. Far as I’m concerned, electricity is magic pixie dust.

If you knew the resistance of you barrel on the bullet times the time it took to travel the length of the barrel you could say my gun shoots x# of Coulombs. Now that would impress someone.. lol

 

[Fire Dog]

Many thanks to all who have quickly replied, in the meantime I contacted my computer building son to get his advice as well as perhaps needing a battery replacement and he put me onto a 1,100ma replacement over the stock Garmin 820ma.
For less than $20 it should arrive mid month though in the meantime I will see what fully discharging the unit before chartering again will do…
I had used different USB chargers as well as trying different charging cords, nothing seemed to make a difference.
He has now also suggested that I clean the port with alcohol or contact cleaner and that is the next project I will try…
Up until this last time trying to charge the darn thing all had been sweet but two days of trying to charge compared to Garmin saying four hours is a bit much…!