When choosing an outdoor power supply, here are three simple pointers to help you quickly avoid the pitfalls:

1. Capacity and Weight: Outdoor activities usually require a power supply for long periods of time, so the capacity of the power supply is very important. Make sure you choose a power supply with enough capacity to meet your power needs. In addition, weight is also one of the considerations, try to choose a light weight and easy to carry outdoor power supply to maintain portability.

2. Output ports and charging methods: Make sure the outdoor power supply you choose can provide the output ports you need to charge a variety of devices, such as mobile phones, tablets, cameras and so on. Consider your specific needs when choosing a charging method. Common charging methods include USB charging, AC charging, and solar charging.

3. Durability and waterproof: Outdoor environments are usually harsh, so you should choose an outdoor power supply with good durability and waterproof performance. Make sure the power supply has a rugged and durable case that can withstand impacts, drops, and water splashes. In addition, some waterproof designs can provide extra protection for outdoor use.

By focusing on these three key points, you can more accurately choose the right power supply for your outdoor activity needs and avoid some common problems. Also, remember to check user reviews and product testimonials to see what other users have to say about the power supply's performance and quality before you buy.