Recent content by sunshine_eggo

Half cut is still a "full cell" in that it can provide about 0.5V of voltage. They're about 1/2 the size of a comparable cell in one dimension. Mostly same. The Newpowa claim bifacial, so you MIGHT get a boost from the backside in reflective conditions. Those are just 3x12 or 3x11 panels...

Victron typical 13.5V float for LFP is fine. if you're going to be in the same place for a month, I'd lower it to 13.3-13.4... If I remembered... :)

This video actually shows a decent comparison between a TRUE half-cut (two panels in parallel in one frame) vs. traditional, shading 1 row in portrait orientation. The water fountain isn't the most precise, but it gives you a decent idea. Note that the "half cut" panels you linked will...

Depends on your equipment. Many RV converters have a 13.2V float mode after an X hour 13.6V absorption phase.

and spelling it wrong... damn off-gird inverters!

No matter what you buy, you will see drastically reduced performance before 12:00-1:00pm. It might make more sense to aim your panels so they get more favorable exposure mid afternoon, e.g., if your panels get light from 12:00p-6:00p, aligning the panels with the 2-3pm sun position should...

@Oak77 Wanted to elaborate on Tim's answer with some terminology: Grid-tied = grid is required. Unit is interactive with grid. It synchronizes with grid and can draw from/send power to the grid. Most operate without batteries. Off-gird = no grid required. It is a complete system without a...

Battery OVP should be Cell OVP * # of cells - the total battery voltage to engage protection Battery OVPR should be Cell OVPR * # of cells - the total battery voltage to release OVP. Recognise Cell Vol? Huh? Maybe that's the nominal cell voltage, 3.2V?

You are chasing a unicorn. Shading is DESTRUCTIVE to PV production. Even the best panels suffer greatly. IMHO, you would get better results buying 2X the array of "standard" low cost panels rather than spending a premium on the best shade "tolerant" panels. Options: Remove that which causes...

Yes. Yes. Trying to have an "all in one" answer :)

Yes. It doesn't just stop at that voltage. It should hold the voltage while the current tapers off for full charging.

MPPT 150/70 = 150Voc maximum array voltage and 70A maximum output current.

I'll need a sketch to figure that out. What do you mean?

Probably. Your question is analogous to: "I have a car with a battery in it. Can I put a bigger one in it?" 10Wh is an absolutely TINY battery. 20Wh is half as TINY, but TINY too. Do you mean Ah? Are these lead-acid batteries? Assuming the system can use the full 120W of the panel for...

All I can see are branches that must be cut down with a high power LAZOR!!!! :p