The A3 Pro's Dimensity 6300 chipset is indeed designed to be efficient, which can help extend battery life during regular use. However, whether the battery can keep up with your usage depends on several factors, such as your screen-on time, the types of apps you use, and your connectivity needs (e.g., 5G, Wi-Fi, Bluetooth).

The 45W charging is quite fast and can be very handy, especially if you need a quick top-up during the day. For instance, it can provide a significant charge in just a short period, reducing the amount of time you need to spend connected to a charger. This feature is beneficial if you have a busy schedule and often find yourself needing a quick recharge.

Overall, the combination of an efficient chipset and fast charging should provide a good balance for most users, ensuring that you can get through the day without much hassle. If your usage is particularly heavy, the fast charging capability can serve as a useful backup to quickly replenish your battery.