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Hey Harwood, Here;s something you might want to consider getting: https://www.amazon.com/CZH-LABS-Voltage-Disconnect-Module-30Amp/dp/B07WDLFFFB ? Mike

Thanks Harwood, I was only curious, so I appreciate your reply and I'm pleased to hear that you're enjoying the fruits of your research, now. Have fun! Mike

That's great news, Harwood. Congrats! Yes, Bluetti Support could have stated their requirements in a more practical way. (Hint: How many customers can measure the Amps delivered at the charge port?) But we managed to read between the lines to solve the problem. :) I have a couple of...

Mine, too! ? I really admire your obvious energy, curiosity and tenacity. Looking forward to your next findings... Mike

Uggh! That was, at first consideration, a lame response from Bluetti support, but perhaps there's just a loss in translation from Mandarin to English. My interpretation, giving them the benefit of the doubt, is that they suspect the extension cables you've tried thus far were of insufficient...

You're welcome, Harwood. My 12-24V step-up converter has a rated output of 240W ( = 24V * 10A). But at its 12V input, that means it has to pull 20A (12V * 20A = 240W). See: https://www.amazon.com/gp/product/B07BKWG9N2/ The ONLY reason I'm using a DC-to-DC step-up converter is because my...

Ouch! The Bluetti AC charger can pull "7.5A Max" at 120VAC = 900 Watts. So even that 700W inverter I linked above, would be insufficient. 900 Watts is akin to a small coffee brewer or microwave oven. You would need a 1000W inverter, to avoid running it full out = more money, heavier cables...

Hi Harwood, OK, I need more than the DC info you provided from the Bluetti display when using its AC charger. There are some inefficiences between Watts consumed by the AC charger vs. Watts actually naking it into the Bluetti. In other words, if the Bluetti is receiving 466 Watts, you can be...

I'm stumped, but I can tell you that, in my experience, Bluetti support is slow but sure. Patience wins the day. (They need more people, but who doesn't?) Anyway, it might take two weeks for the first reply to an email and then you can go back and forth with them fairly quickly, if you have...

Hi, I think you're onto the cause of your problem. Test the extension cable with a different cigarette lighter socket (in another vehicle). If it works OK there, you might need a new socket in the Vanagon. Otherwise, replace that extension cable with a different design, but keep in mind...

See Forbisher's comment #2. With a 2s2P array, your input voltage to the EB240 charge controller will not come anywhere near the 68V maxiumum, but you will still get the same Wattage coming out of the four panels as you would if they were in series. You could also aim one series pair about 5...

Question: What is the minimum input voltage required by the MPPT charger of the Bluetti AC50s? Answer: 14V (up to 40V) Problem: Even with the engine running, the alternator will not keep the voltage at or above 14V while under load. Use the 12V car charger, instead. ? Or...

Dang! You're all set! ????????

I cannot recall details of Hobotech's testing of the EB150's inverter, but you might refer to that video to see if he had determined an instantaneous maximum output, hopefully greater than your 1150W need. I like the idea of multiple units (2x EB150) vs. a single, larger unit, not only for...

Hi, You might be able to deploy a folding plastic table for elevating the panels above the height of the railing, oriented verically, with perhaps a strip of 2x2 pine, C-clamped atop the table, lengthwise, against which to rest the bottom edge of the panels, propped up against the wall. No...

Hi Seldomseen2u, Ironically, I've been seldom seen at this thread, so I apologize for neglecting your questions and it's a shame those Newark connectors aren't true 3-pole solderable. Their drawings led me to believe otherwise. You certainly seem to be working things out pretty well on your...

Occasionally, yes, but only in ideal conditions of bright sun, clear skies, cold air, perfect angle, clean panels and no shadows. If the voltage is excessive, the Bluetti will protect itself, but you won't know to reset it until you next look at the LCD display and see an Error 17. It might go...

Those resin-potted heatsink style step-up convertors are available with several different specs, so you should be abke to find one that will suit your AC50S input requirements, if that's some thing you want to pursue.

I haven't found any cables that shunt the center pin to the inner shell of the 8mm plug, as required by Bluetti. Quoting a link from my post #10, above, you could build your omn cables using this solderable plug...

Thanks! You took a very fortuitous shortcut (pun intended), having retained the proprietary soldering at the 7.9mm plug of that Blueitti cable. ? Nice going!

Oops! Yes, it's Battle Born, not Battle Mountain. Doh! :p And yes, you're probably right about not needing the MPPT controller. :p Here's a link to their Trolling Motor page: https://battlebornbatteries.com/marine-systems/trolling-motor/ There's a FAQ section at the bottom, but after...

With the built-in 1000W inverter, a user can power anything that requires up to 1000W. Add a 100W external inverter to the 12V DC socket and a user can then power an additional 100W device by plugging it into that external inverter. https://www.merriam-webster.com/dictionary/augment

Parallel is preferred for two reasons: 1) If one of the panels suffers partial shading, it will have no effect on a parallel panel. Were both panels in series, they would both be affected by even a little bit of shade on one cell of one panel. 2) Depending on your application (i.e...

I'll stick my neck out and say that if your intent is to go something like an entire year without using the Bluetti, you should try to keep it at or around 80%, coming back once every three months to kick it back up to 80%. Convenience must always be sacrificed when seeking perfection. If...

When you tell the AC200 that you are charging from a 12V car battery, it will only pull 8.2 Amps, which translates to 100 Watts, which means it would take about 17 hours to charge its 1700 Wh lithium battery - and you'd better keep your motor running or you will kill the vehicle's battery. The...

I'm late to this thread, but if you were to buy two more of the exact same panels that you have, adding them in parallel, you would still be at less than 60V, but your total wattage under ideal conditions would be 800W - which would only go to waste under ideal conditions. Your array would come...

The Bluetti EB240, for example, has a 12V DC power socket that can only deliver 9 Amps, continuously, so you would only be able to operate the trolling motor at the lowest speed setting (8 Amps). Even then, when the motor first starts, it might attempt to pull more than 9A, momentarily, which...

The 12V DC socket of the EB240 can supply 9 Amps, continuously, so you could augment the built-in 1000W inverter by connecting an external inverter, rated no higher than 100W. (100W / 12V = 8.33A)

Mission accomplished, after figuring out that Bluetti's EB240 requires the inner sleeve AND the center pin of the 7.9mm plug to have "+" polarity (with "-" at the outer sleeve.) The center pin cannot be dead, as is the case with iGreely, Jackery and many other cables that are terminated with...

Hi CompMan2020, I was about to post a new thread, when the server listed this thread as being related to the title I had in mind... Unaware of your experiments, I've recently started using what I suspect is the same DC-to-DC convertor you are using, rated for 12V input and 24V output at 10A...

^^^^^ Great idea, Hedges! Thanks!

Hey, that's great news. Thanks for this follow-up report. Your overcast charging should now deliver twice the Watts seen prior to adding another set of three panels in parallel (assuming there's enough light to get at least 40 Watts coming in (or there abouts) to bring the charge controller to...

Sweet! Thanks for this update. Going by some Hobotech videos I've watched on YT, there's about a 10% difference between Amps going into the EB150 and Watts displayed as input, due to controller losses. The Bluetti is displaying the actual Watts being delivered to the battery, after controller...

OK, I'm stumped. And you're saying that if you just left everything as is, if the cloudcover cleared, it would start charging? Don't get too worried yet, until you've shared this with Bluetti support, but to me, it sounds as if the MPPT charge controller is failing to react to the low...

Thanks for the Max. Voc spec. The next time it's cloudy enough to see no charging at the Bluetii, I strongly suspect that pulling the plug and carefully measuring the voltage at the 8mm plug will show something less than 16V. Whenever the voltage reaches 16V, the Bluetti will show at least...