This is a 350mAh battery. My testing shows training time up to 10+ hours in "training mode" a full day with "GPS on" and 2 weeks in power saver (time only) mode

This battery is rated a bit higher than the stock battery and performs better than the stock battery. Garmin Edge Garmin Forerunner  305 205.

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If you damaged your display, I will replace the LCD for you.

This battery is the same as the stock battery.

If your 310xt won't display anything when connected to the charger, a battery replacement will not fix it.

Display replacement service. Displays are used but in good condition.

If you damaged your display, I will replace the LCD for you.  LCD only, not the outer glass.

If you damaged your display, I will replace the LCD for you.

This battery is the same as the stock battery.

Rubber buttons falling off?  I will replace the bottom cover with a good used one and a new battery.

This battery is the same capacity as the stock battery.

Mounting Tabs Broken? Power button gone? I will replace the bottom cover with a good used one.

Forerunner 110 210

If you damaged your display, I will replace the LCD for you.

Rubber buttons falling off?  I will replace the bottom cover with a good used one. Also repairs mounting tabs.