lawrosa wrote:I also went serial due to the better shade power due to bypass diodes, but that is not a OP concern. wrote:
Yes I believe my panels have them built in.. I assume they have blocking diodes too, but could not find reference to that...
No blocking diodes for your panels.
I do see 3 diodes on the schematic across outputs 1-2 2-3 3-4 ( Plus and minus come off 1 and 4...)
Ive read about hot spots and its effect...
Diodes
• All LG modules are equipped with factory installed
bypass diodes. The factory-installed diodes provide
proper circuit protection for the systems within the
specified system voltage.
I wonder if lesser cost panels have these and if this is indeed a concern.. ( I read its shading related.)
Many 12V panels don't have bypass diodes perhaps because they are often connected in parallel. Could be related to cost.
24V panels will "always" have bypass diodes. Their usage is serial connected and high voltage - think grid tie or off grid. The RV market is not a factor.
