EF-1500 add-on demand collection Question Title * 1. How many EF-1500 units do you plan to purchase? Question Title * 2. Where are you located in? United States Europe Canada Other (please specify) Question Title * 3. What is the maximum capacity of portable power stations do you need? Capacity options To support your current use 500Wh to 999Wh 1000Wh to 1499Wh 1500Wh to 1999Wh 2000Wh to 2499Wh 2500Wh to 2999Wh 3000Wh to 3999Wh 4000Wh to 4999Wh 5000Wh to 5999Wh 6000Wh to 6999Wh 7000Wh or more To support your current use Capacity options menu Capacity you wish to have 500Wh to 999Wh 1000Wh to 1499Wh 1500Wh to 1999Wh 2000Wh to 2499Wh 2500Wh to 2999Wh 3000Wh to 3999Wh 4000Wh to 4999Wh 5000Wh to 5999Wh 6000Wh to 6999Wh 7000Wh or more Capacity you wish to have Capacity options menu Question Title * 4. What is your thought on the concept of Extra Battery?Do you prefer to have one power station unit with a larger capacity, or one smaller power station unit with option to add extra battery module? Let us know your choice and reason for your preference. Done