Pokemon GO has taken over life, but it has also taken over the battery life of the smartphone.The app lets Australians around the world chase and catch Pokemon, but sometimes, when you hear the painful cries of Pokefans who lose rare monsters or fight, because their phones are out of powerPokemon GO can greatly affect the battery life of the phone as the app requires screens, GPS and data to run continuously when it is in use.Finder.com.Alex Kidman, editor of Au tech and telco, said the game is usually a battery pig and Pokemon GO is not an excuse."It runs on the screen, which is almost the biggest use of the battery and really affects the battery life of the phone," Mr Kidman said .".However, there is no need to worry about Pokefans, there are ways to reduce battery usage and extend playback time.This app has BatterySave the feature and turn it on when your power is getting lower or you want to hang out for a while.To turn it on, just go to the phone settings and select the battery saver.Then the screen goes dark when the phone is upside down."Our idea is that you can put your phone in your pocket while you receive the notification," Mr Kidman said .".While there is nothing you can do about GPS data, Mr Kidman says you can dim the screen brightness, disable other background apps, and reduce or turn off the volume of your phone."It is very effective to dim the brightness of the screen," he said ."But Mr Kidman warned against getting too excited about the low power mode features on some smartphones."The low power mode feature on the phone seems to cause some technical problems," he said ."."It's an experimental, different call.If all else fails, you can get an external battery pack to save a day.They are in a wide range of sizes, smaller to maintain less power, larger volumes, allowing your phone to run longer, and doubling the battery life of the device.You can buy it online or at gadget stores such as JB Hi-Fi and Harvey NormanKidman said the bigger the phone, the better."Basically, any phone over 6 inch usually has a longer battery life," he said ."."The battery life of the tablet (between the phone and the tablet) is the best becausexa0Size.Finder.com.Over the past 18 months, au has tested all major smartphones released in Australia.Uninstall the application