This depends on how much you use your Chatsie phone.
Typically, if you are using it for calls, texts and several apps in a day, you would probably need to charge it once every 24 hours.
If you use it less, this might not be the case. However, a phone loses battery over time even when the screen is switched off so you will still need to keep it charged every few days.
We recommend you plug your charger in somewhere memorable e.g. on a bedside table, or kitchen counter - as a reminder to keep track of your phone battery!