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Colorado 400c shut off automatically after 9 hours

Former Member
Former Member
Hi All
Last morning I put two fully charged battery into my CO and keep it on with the satellite page and put it near the window.

Now I found that it shut off automatically, I turn on it again, and find the battery is still half-full.

It's still on when it's 5 o'clock, so it should shut off around 6-7 o'clock .

I'm using Duracell 2650mAh NiMH and set up as NiMH in Co.

I thought it's a battery problem, so this morning I connect my CO to external power by setting GARMIN Spanner mode and connect to a USB hub.

It's still shut off after I came back from work this afternoon:(

I'm not if it's a bug or not, are there anyone had the same issue before?

Thank you in advance.

Cheers