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Not all lithium ion AA batteries will work with our GPSMAP 60 and 76 "x-series" devices as they have too high of an output voltage. Typical AA batteries have a voltage of 1.5v each. Some lithium ion AA batteries put out 1.65v or higher. Our units will only accept power from batteries that output less than 1.65v.

If using Lithium-ion batteries and the gps will not power on or will shut down quickly after being powered on, the high voltage could be the issue. They will need to be drained a little to be in the operative range in the unit. Use a flashlight or other device that uses AA batteries to drain some power from the batteries.

Thanks!

I guess I'll go check out the voltages of some more brands of lithium batteries. Doing the checking on the internet has given me a wide variety of results.

edit:

I came across Battery University. Located at http://www.batteryuniversity.com/

Hello all! I just purchased a 60CSx and am trying to figure out if I can use lithium AA batteries in that unit.

Those non-rechargeable AA lithiums are rated at 1.5V but I understand the initial voltage to be 1.72-1.8 volts.

I've tried rechargeable AA NIMH batteries but they simply don't last long enough for use on my hiking ventures.

So I'd like to try lithiums. Has anyone used them in a 60CSx?

Great site and forums, btw!