Recent content by Stevo57

Sorry about the delay in responding. Been traveling. The ones in the graph were stored fully charged for between 6 and 9 months. I agree with you that it is hard to know whether or not the changes are due to that or just what happens with old cells. I've been harvesting more cells and ran...

This out of control and not the intent of the diysolarforum. Folks, please take your politics somewhere else.

Being new to this, I made the mistake of storing fully charged 18650 cells that I've salvaged from used laptop batteries. Here are the results from the before and after for 316 cells that I had tested using a Litokala Engineer 500, then stored for between 6 mo and 9 mo, at a full state of charge...

I received what appears to be a brand new unit from Giandel. No questions asked, very courteous dealings, good communication. The new unit is working as it should. As far as my experience indicates, no one should have any reservations about doing business with Giandel. I don't know what the...

Thank you for your reply. It begs the question: What does one do to prevent a "rate of change" current flow (load demand) that could potentially damage the inverter? I've designed my system for 2400w max, which is 80% of the inverter's rated continuous capacity (3000w) and well below its 6000w...

As I said, I wanted to make sure folks knew that Giandel was being very courteous and responsive so far. Too many suppliers get reamed by unreasonable customers. My initial post was too severe. This is a two way street. Was it my fault the unit failed? I don't see how given that neither my...

I haven't yet received my repaired or replacement inverter, but the folks at Giandel have been very courteous and responsive. I want people to know. Next step is to get the inverter back and continue with my project. I will provide an update.

I've just started my journey returning a Giandel 24v 3000w inverter I bought in August and is now dead. Not even two months old and it has failed on a 100a input limited system. Their "support" kept sending me emails telling me that it wasn't turned on and to press the power button. Duh! I...