Interesting finding, today.
**cliff's notes** - the order in which the panels are in series changed the power output more than 20%. (and a lot of cussing)
I was tinkering around with panel position in the rack (swapping the 170s and 210s) just for S&G, reconnected everything and realized that...
Yeah, I'm trying to be as specific as I can. I definitely dont want this to come across as a review of the company, it's people or other versions of their panels, just testing the (2) 6BB 210W panels and identifying what I notice.
I've insulated the battery bank in my OLT pretty well. I'm using (16) 50Ah LifePo4s with a 15W heating pad and mini fan (I think from a 3d printer). I've set them to turn on@ 40F and off@ 55F. I didn't see if there were panels on your tent cover but I would recommend at least 1 50W connected to...
For your under temp, Victron sells a battery temp/voltage sensor that will tie into your 100/30 Smart Battery Sense, I think. You can then set your ranges across the battery (not individual cells).
Also, just throwing this out there, that 100/30 (35?) really is a nice and small unit but if...
Does anyone have a line on serial bus bars for these same 50Ah from Lion? switching from a 4p4s 12V with home made 1/4" thick copper bar to a 48V for my next project.
I was thinking about how many people on this thread are buying 4 or 8 packs of cells of which half of the cost is shipping. If I remember correctly, the cost of air freight goes from ~$40/Kg to something in the neighborhood of $7/Kg at just 100 Kg. Too bad we couldn't figure out a group buy for...
Hi all,
I've been playing around over the last six months with a DIY 2.4KW Lion Lifepo4 4s4p, Victron 75/15 and some questionable solar panels for my overland rig. Now that I have all the answers I need for that project (except a good battery case), I'm looking to start my next project. RV/juke...
The short answer is, you don't. CCA is a discharge rate. Unless you're going to start your van with it, you dodn't care about CCA. What you're looking for is Ah (amp hours). i.e. it can provide a given current over a given time.
Each battery and battery type has a different charge/discharge...
Does anyone have a clear photo of the Growatt's internals? I'm looking to put a shunt between the MPPT and Inverter when that slow boat from China finally arrives.
Growatt has so many inverters, it's difficult to find the right one(s), Reach out to them but I think you're right that the DVM is the one of choice for Japan. Also to make sure the have one that is speced/certified for local.
As for why I want to add the shunt between the inverter and mppt...
From what I've read. The Renogy Li is specific to LifePo4. That said, Renogy seems to be super conservative (or cheap) with their charging so I would guess 14V is about right.
I just happened upon this on Indiegogo.
https://www.indiegogo.com/projects/monster-x-the-future-of-portable-power-stations#/
2,000W AC Outputs | 1,287Wh | Solar Input | Lifetime Warranty | Can Even Charge An Electric Vehicle
Thought I'd pass it along
Hi all,
I'm looking at using a weatherproof Pelican type case for my (16) 50Ah batteries, bms and victron 75/15. I have a few questions about doing this since it will live in the bed of my truck for weeks at a time between 40F and 110F. I'm basically making a solar generator for 12V
I'm...
Good to hear! I haven't gotten time at the lab yet but here's some casual observations on the (2) 210w panels.
Moderate to low light performance is less than my (3) flexible 50W 2YO panels. At 53 F on another bright day between 11:30 and almost 1 PM they started from about 310W then once they...
They look like beta/raw cells but the lug design leads me to think there was thought put into these.
https://www.alibaba.com/product-detail/lithium-iron-phosphate-3-2v320ahLithium-iron_62454033687.html?spm=a2700.themePage.youMayLike.9.5b395d287A1wl6
So I was able to get to my lab but wasn't able to get time on the panel tester. What I was able to do is get into the luxlab for a bit of "unreal world" testing. I pushed the sun room from 10K lm to 140K lm over a period of about 80 minutes @ ~ 63 F (as cold as I could get the room). What I...
I can't speak to the "chaining" but I would guess you're right with your thought and it's all about component placement. For load (as said above), a 10W tv on a~120W load circuit (12V@10A) would be fine. Is that TV 12v or 6v? Of the SCCs I've used, the load output = voltage of the battery X...
I suppose that depends on the use case. ~ 750W/day is roughly 1/3 of the battery with reasonable DoD settings. Allowing for real-world use, if I get that much power every two days, my power requirements would be addressed indefinitely. Unfortunately, the real world gives you several days at a...