I have been using this charger for almost five years without any problems. However, I am currently concerned about the fuses repeatedly blowing.
At this point, the fuses reach 100°C, causing the plastic to melt.
I had to replace the fuse holder, I soldered the cables instead of using a terminal
In addition, I added an exhaust fan at the bottom and a pusher at the top, near the connector.
On my last run, the lithium battery (310) was almost empty and the unit ran for eight hours, but this is the result.
I doubt that using terminals will significantly improve heat dissipation. However, can soldering create resistance such that it would cause overheating?
Do you have any suggestions before I am forced to replace this charger?
Also, are there similar models with a capacity of 50A or more? From my research, the maximum charge current should not exceed half the capacity, which would imply 150A for my battery. However, I am aware that this would require larger cables, which raises concerns.
What value fuse do you have in there, the 40A recommended by the manual. Running it flat out for 8 hours in an enclosed area could result in overheating. What has changed lately to make this blow, have you recently swapped over to a lithium battery. Victron do a whole range of chargers. Whilst the battery can accept higher charge currents, it is not necessary to use higher currents, the benefit is in reduced charging time if this is important.
It was indeed the fuse that I had undersized since on the manual I did not find the adequate value and I had put 30 A now that I have put 40 it is better.
Another question I put 50° as temperature setting my probe is placed at the level of the internal fan sheet (in the folds of the sheet to avoid any risk of short circuit).
