Originally Posted by Bayner
Can one of you guys with a good internal battery tell me how long your clock etc will hold time? I noticed mine is only good for a day to a day and a half now. Maybe I just never noticed until reading these threads, I really don't know. So, what's normal?
When my GPSmap 276C was good I once left it for 6 weeks and it was within a second when powered up.
Had to recharge the battery as that was flat but the clock was fine