A. 1. Reduce screen brightness while using the app and close other background apps to conserve battery. 2. Enable Low Power Mode by going to Settings > Battery > Low Power Mode to extend battery life while using the app.
B. 1. Limit the use of the app to when you have access to a charger or power bank. 2. Monitor battery usage in Settings > Battery to identify if the app is consuming excessive power and adjust usage accordingly.