Shouldn't be a huge relative power draw because you don't use it for very long. Not knowing the specs of the linear actuator or the weight of the top half of the trailer, this would just be an estimate, but what the heck, this will be fun. Here are some assumptions that affect the math:

- Top of trailer (moving section) weighs 700 pounds. It makes the math easy below. Could be more or less, but whatever.
- Draw is 7.5A for a linear actuator under load.
- This is the biggest unknown, but once we get to the end, I don't think it will matter even if it was 3x this estimate, which it's not.
- I picked a Progressive Automations PA-04-400LB model. This has an unloaded draw of 4A and 0.02A per pound moved.
- With 700 pounds (175 lbs per actuator), the amperage is 4A + 0.02A/lb*175lbs = 7.5A per actuator. I showed my work so you can change it if you don't like it.

- 4 linear actuators (one on each corner).
- Based on video, a conservative estimate is 2 mins to raise the roof (1/30 hours).

We trailer people tend to think of power use in Amp-hours, so now it's easy.

7.5A*4 actuators*(1/30 hours) =

**1 Ah consumed**.

Unless they spec it with a 2Ah AGM battery bank, you shouldn't get into the danger zone of power consumption. If you set it up in the sunlight for that 2 minutes, you may not even see your bank dip below 99% charge after it's lifted.