Battery charging time of Arduboy FX

While charging a red led is on.
I’ve found that post (fully charge signal)
according to which when red led is off that means it fully charged.
In my case i have it for 2 hours connected to a PC’s usb port but still the red led is on.
Is that normal ?

It should take about an hour or two to be fully charged. If the Arduboy is on while it is being charged you might not see the light go fully out since the charger is parallels to the power supply.

If while powered off, the Arduboy takes longer than 2 hours to charge, or if the device will not operate under battery power there may be damage to the battery. You can write into Contact — Arduboy if it’s not working correctly.

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Thanks for the explanation. Next time i will checked if its on or off while charging.