Before you buy the power, station enlists the reasons you want to buy it. Here are a few reasons and factors enlisted;
The type of devices you need to power such as surveying instruments, power tools, hand tools, smartphones, electronic theodolites, etc.
The power output you need that is measured in milliampere-hours (mAh). A 10000 mAh translates to roughly 3 complete charge-ups of a smartphone.
Type of activity you are going to use the power station for is important. You could use on a job site to power tools such as hand tools, cutting and welding tools, engineering, research and survey tools. Or you could use it to charge the batteries of your power tools. You could use on your camping trips to keep your devices charged.
The frequency of use lets you decide on the mAh required, the time taken to charge the station, etc. If you are going to use the station regularly then invest in the best, most versatile and powerful device around. They are a reliable source of clean energy in places where there are frequent power cuts due to hurricanes, storms and other reasons for a power outage.
The location you are going to use the power station should be kept in mind. If you are going to be outdoors you will require a solar panel or a wind turbine to harness the sunlight or wind to recharge the power depletion due to use. If you are indoors you should be able to recharge using a wall plug. As you may have noticed the benefit of these power stations is that they can be charged up using multiple and clean energy sources. Besides as they are compact and portable, they can be carried anywhere and used anywhere.