Hello all, I hope you are doing fine. 
If you are experiencing problems with your Surge's battery, consider these tips when you want to conserve battery life:
- Shut down your Surge when not in use.
- If you use the Fitbit app, make sure All-Day Sync is turned off. All-Day Sync increases battery drain on both your tracker and mobile device. To find the setting, open the app and tap Account. At the top of the screen tap Surge to see your settings, then scroll down.
- (Android only) Turn off the Always Connected setting. Similar to All-Day Sync, it can reduce battery life.
- If you don't need heart rate data, change the Heart Rate setting to Off. When you turn it back on, use Auto.
- Charge your tracker more often if you use music control frequently.
- If you have many silent alarms set, remove some. Each alarm you add up to the maximum of 8 reduces battery life by a small percentage.
- Turn off Quick View. Since it causes the screen to light up when you turn your wrist towards you, turning this setting off may prolong battery life. To find the setting, open the app and tap Account. At the top of the screen tap Surge and scroll down.
Some other reasons of the battery inconvenience are that the tracker isn't connected securely to the charging cable, or the the contacts on the tracker or charging cable are dirty. So, my recommendations are to try a different port to charge it. A UL-certified wall charger will also work. Don't use a USB hub. Check the alignment and try reconnecting your tracker to the charging cable and the last is to clean the the charging contacts on the back of your tracker to ensure they stay bronze or gold in color.
- Use a toothpick or a toothbrush with rubbing alcohol.
- Make sure not to scrape the contacts with a wire brush or anything metal, since this can damage the plating and cause corrosion.
- If you use a toothbrush, dry with a cloth or tissue before charging.
Clean the pins on your charging cable. To do so:
- Soak a cotton swab with alcohol and press the swab to the pins carefully.
- Make sure that no debris from the swab is left behind.
I hope this helps guys. See you around. 
Alejandra | Community Moderator, FitbitIf you like something I recommended, I encourage you to mark that reply as "Best Answer". 🙂