r4dent
Full Member
- Posts
- 3,648
- Likes
- 6,791
The other thing to take into consideration is the cabling from the battery to the inverter.The Asda one I've linked to is 900 watts but I'm sure the only thing that determines the watts you require is your inverter,
Using a 500w device will draw about (500w *110% / 12v) = 45 amp; a 1,000 w device = 90 amp.