What can I expect to happen at >4500m of altitude?
Good question. It has to do with the insulating and heat dispersion properties of the atmosphere the higher you go. Don't know Victron's answer, but below is a link describing how in effects Power Supplies.
Pat
I don't have any more specific info than Pat, but Chetang is at ~4500M
https://www.victronenergy.com/blog/2019/02/07/sustainable-micro-grid-brings-hope-in-the-himalayas/
So just a precaution of victron to devoid warranty?
I think the charger has a temperature sensor and should protect itself against overheating.
If necessary I could reduce input voltage. Like covering or disconnecting a panel when travelling through elevated areas.
I am guessing now, but I would say that is as high as they have been thoroughly tested. It's a company with a Marine background after all, that is based BELOW sea level.
Yes, the units have a self-protecting power output de-rating based on temperature.
The higher you get, the brighter it gets and the colder it gets, so you will need to keep an eye on the PV input voltage and keep it well under the limit.
If you take it, and it fails, and you write a thorough report on the experience I will happily send you a replacement whatever altitude you reach. Good luck! :)
