The coolants they use are supposed to last the lifetime of an air conditioner, but accidental damage, wear and tear, contaminants and other issues can spring up. In these cases, the air conditioner may need a charge of coolant after the issues are fixed.
The Fitbit Surge comes equipped with a rechargeable battery made of lithium-polymer. It takes roughly about 1 â 2 hours to charge a Surge fully. Fitbit Surge has the longer battery life of 7 days per charge than other Fitbit products. 1  Plug the cable into the USB hub of your computer.  Then plug the other end into the port at the back of the Surge.
Get the Charge HR if you are serious about your fitness and want a fitness tracker that can also give you statistics for your heart rate. Its battery life is slightly less at five days. Finally, the Fitbit Surge costs $299.95 and is the cream of Fitbitâs new crop of trackers. Itâs everything that the Charge HR is, so it can do all your step, distance, elevation, sleep, and heart tracking, but it also incorporates a GPS and a whole host of other features.