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You must mean toner transfer method? I tried that decades ago and switch to doing the photo method and never looked back. I buy pre-sensitized boards and within an hour I can make a PCB with 10mil lines/spaces repeatably. That said, if you can wait 2 weeks, you can get boards made cheap, full...

I picked up a Smart Solar 150/45 this morning because of the deal and it was just delivered the same day.

Deal is confirmed. $159.99 for the 12V 100AH (which I measured at 107AH using my CBAV with a 10A load), and $335.99 for the 24V 100AH. All are after a 20% Ebay coupon. Note that taxes are charged on the full amount.

My two 4215BN controller continue to work fine without me having to power cycle the panels. We're supposed to get rain Wednesday through the weekend. That will be a good test to see if they get stuck in cloudy days - though I don't have a good way to see that other than to monitor my Smart...

No, the 100W panels in series will still have a limit of 4.9A but now you're clamping its series voltage down to the output voltage of a single 200W panels. The 200W panels need to be in series too in your dwg.

Two nights ago I updated one controller to FW version 1.04 but left the second one at what it was delivered with (1.02). The very next morning, the one I updated was correctly performing MPPT, and the one I did not update was stuck. The wife power cycled the panels to fix the stuck one. Last...

I pulled 61AH from the batteries overnight. This morning it took a while before the panels starting putting out decent power due to shadowing. It took a long time but eventually got up to 33.3A of charging at 27.4V, or 912W coming out of 1.5KW of panels, but mounted flat and here in So Cal...

Looks like Eco-Worthy is repeating their 20% off sale starting tomorrow (7/15) on Ebay. Right now (7/14) their ad already shows the 24V 100AH is "$335.99 with code", but there isn't a code yet. I think I'm going to get another 24V 100AH. I rearranged my packs today and have room for 1 more.

What many of us ‘stuck’ Epever owners did to show its a fault of the controller is to disconnect the panels and reconnect them. Each time I did that I made a lot more power as the controller found the correct mppt point again. Are you able to disconnect/reconnect your panels next time you have...

Bare copper can look like this over time and when exposed to air. it doesn't have to get hot to do this. I had to throw out some old spools of wire here that looked like that when the insulation was stripped off. It didn't even get used. Strip back the insulation a lot more and see if it gets...

They were running a killer deal on these last week. Got one of the 24V 100 AH delivered for $361. Looking good so far.

That may be true but it is also being sold by DLJBERMPW too for $439 and $404. I wrote to them and they said it’s the same battery but the one link is participating in a short Amazon promotion. They also said they were prismatic not pouch. Based on their reply I went ahead and bought one.

First one has been working fine. It's paralleled with other 24V batteries, all together 650AH. The second 24V 100AH has yet to be connected up as I don't have long enough jumpers yet. I did perform a capacity check on the second unit. Fully charged it to 28.0V, then discharged it a 4.5 A...

the nub/tang on the removeable side takes care of retention. My 24/1200 came with a mangled retention pin on the connector. I had to bend the plastic back into shape to work like it should. I use a Wifi smart switch with a cell phone charger plugged into it which then powers a small relay...

I bought one of the EcoWorthy 12V 100AH batteries during the Ebay 20% July 4th sale. Was $149'ish before taxes. Didn't realize the ad said it was used, but what I received looked brand new. Charged it up, put it on my CBA V and measured 105AH. I'm happy. This will be for ham radio portable...

No issues with mine. Sounds like your lugs are not very thick or your bolts are too long.

Today is sunny with patchy clouds. I watched the power production for a few hours while I was hooking up and testing my new Victron 24/1200 inverter. Production was up and down with every passing cloud and at no time did the two 4215BN controllers drop out of MPPT mode. Load was 700W continuous...

Ecoworthy LFP batteries are 20% off on Ebay again. I picked up another 24V 100AH battery.

In case anyone is interested, DC House on Ebay has the 24V 100AH battery for $410 plus another 20% off for 4th of July. Taxes are based on the original price, so out the door for me with taxes is $360. I will not be picking up another battery though as I'm where I need to be already storage...

Here's an update on where I'm at. - I found that Samlex makes a 24V input 600W pure sinewave inverter that meets FCC class B emissions. I just received one yesterday but haven't fired it up yet to check its output. I have high hopes that it will be clean. - Separately I've purchased both a...

FWIW, I was running into this on my used CALB bank. I put them into service without top balancing them. Ended up top balancing them, but also changing the boost voltage to 27.6V (24V system). Now all the cells stay nice and even.

The tech already got back to me on my questions. He did not say that the fw specifically fixes MPPT issues, he just said "it fixes some program bugs, maybe the update can solve the problem". What I found interesting is that I sent a screenshot of the PC software tool showing my settings and...

What battery voltage are you going to run? You've got 800W of panel and at 12V you'll need 67A (or 57A at 14V). If you go to 24V, you'll be able to get by with the 150/35. (150V input as 24.3V * 4 = 97.2, too close if the weather gets cold as the PV OC voltage goes up with dropping temps.)

All the power tool chargers I've had have switching power supply type topologies and have horrible power factor. So I'm guessing that though it's 550W of draw, VA rating is very different and it is confusing the protection circuitry in the Giandel.

Engineer here too. Since I’ve removed 5 UPS’s and put all my networking and ham radio stuff on solar, up time and replacing daily usage is priority.

I had the same problem with my both my EPever 4215BN's. The factory sent me new firmware and it solved the problem. The firmware wasn't on their website. Been working fine ever since I updated it. That said, now with the Victron price drop, I can get a Victron 150/45 Smart for nearly the...

I read up on the EPevers dropping out of MPPT and from what I could gather, it wasn't the BN series. I hope that's true. I do know that I have more panels than my single 4215BN can handle, so I will be looking for another SCC. Right now I will be feeding the BN with 3S2P REC Solar 250W...

Eco-Worthy on Ebay is offering 20% off, 12V 280AH for $432

Also didn't read the whole thread, but the opening post was "I use 175 KWh per month" and "I have a 3.7 KW system" and a "$500 true up" You should have a zero bill with your system if it's working correctly for as little energy you are using (<6KWh/day)

I just joined the club. Ordered a 24/1200 Phoenix inverter and it was delivered today. Going to charge my EV with it as I can limit my EV to 5A charge rate even with level 1 charging.

I have been enjoying their $1.50 Global shipping choice. $2.00 for 5 boards + $1.50 shipping + tax comes to about $3.76 total. I send my gerbers on Monday and I get the boards in my hands the following week on Thursday. Heck, the speed of US First Class Mail these days isn't even that fast...

I I'm leaning towards agreeing with you. A year or two ago, there was better differentiation on components, but I think they all are using the same contract manufacturer and components at the level I'm interested in. I've pretty much decided to go with Redodo due to pricing and the innards...

Victron Smart Shunts are already on sale for $100 https://www.amazon.com/Victron-Energy-SmartShunt-Battery-Bluetooth/dp/B0BF636VBX

My two 4215BNs are working fine even with today's clearing clouds from the rains we had yesterday.

Fred Zhao is the one that gave me new FW for my BN and fixed that problem. Haven't had an issue for many many months, with cloudy rainy days even. Solid performance.

And then to a raspberry pi? We have rain coming up next week and I’d like to see what I can produce or not produce on cloudy days. In other news - my two 4215BNs came up okay again today. So far still good.

Holy smokes! Huge discounts across the board when I look on Amazon. Just picked up a 150/45 to compare with my Epever 4215bn

What’s the mating connector for connecting to the VE port? I’m going to need to order some.

I see a thermistor on your LiTime. Which one did you buy? Was it advertised to have low temp charge protection? And what is that round black disk on the left top of the pack? Your BMS is interesting in that it is fully packaged. How is the heavy gauge negative leads attached?

I've been happy with my 24V 100AH EcoWorthy. Bought another Victron Smartshunt and have been using it to measure the performance of individual 24V batteries in my setup. Even the DLJBERMPW 24V 100AH has been working great. No issues with early termination of the charge (though I do terminate...

I will need to check but I think below 1A. As long as the panels can maintain the higher voltage AND some current, I've seen it in MPPT mode.

I'm only plan to go to 24V in a 2S1P or a 2S2P configuration. Regarding taking it apart, I should have been more clear. If I end up with a bad battery, or upgrade to newer batteries or technology in the future, these batteries will always be useful, and much more useful as a 12V pack than a...

Redodo 100AH 12V LiFePO4 down to $229/each today ($269-$40), and even cheaper for a pair. I just picked up another pair for $205/each ($455-10%)

Thanks for the details. I see that my 4215BN has shipped - with luck I'll have it in time to play this weekend. I don't have any logging capability yet, but did buy a Victron Smartshunt. Not sure if it's fast enough to see voltage spikes.

Your units definitely need to be dealt with. I'm still having no issues with my 4215bns. Today I tested the Victron 24/1200 inverter at its highest setting by having my EV set to 10A of charge limit instead of 5A to see if it could handle it. It did but the alarm LED was on. After a few...

Refurbished EB3A is ~$143 on Ebay. Find the listing and in the ad there is a spot to click "to get it for $143.20"

FWIW, I no longer buy Duracell AA's as they always leak. I've even had them leak, new in the package, far from their expiration date too. If it is something that can take NiMH cells, that's what I'll use. Won't help you for your multimeter, as it likely won't like the 1.2V from a NiMH cell.

Thanks everyone! I'll perform some low current, low voltage setting charging and see if it helps.

Are they reaching a full voltage without disconnecting? I’ve read folks having balance issues edit: I bought one! I was going back and forth between this or two of the 12V 280AH batteries as those have even better AH to price ratio. Now I have 4 different brand 24V batteries in parallel (some...

Check out my discontinuous thread here https://diysolarforum.com/threads/budget-mppt-recommendation-epever-bn-40a-150v-was-eco-worthy-60a-150v-mppt.70775/ I too bought 4215bn because of the passive cooling and huge lugs. The ones I bought were newer units with LiFePO4 support built in. That...