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RE: EPDM roof Material or Something Else?

My TPO Roof (thermopolyolifin) is about as good today as the day I bought the camper 13 years ago, in fact I can’t even see a difference…When not in use, the truck camper has been ‘mostly’ (but not always) covered, yet gets used regularly, I’d estimate that between two different vehicles it has about 185k miles on it, including plenty of NV high desert camping…So it’s not quite clear to me why one would seek to avoid TPO?? 3 tons
3 tons 05/17/22 09:35am Tech Issues
RE: Lifepo4 float setting?

Wow..No clue really what you meant..LOL Maybe poor wording on my part in that post..I meant it seems sometimes there is some looking down as in "what a stupid question" or"not again" and a lot of new LFP users blaw blaw blaw :B...Everyone started at one time or the other and if your a poster here, one would think helping others if you can or passing on what you went through or possibly "this is the setting I finally came up with" after years of testing.. No biggy but I do see the same posters from here on another DIY forum with quite different attitudes and no hesitation to pass out advice and numbers,but not here for some reason.. Enough of that huh..LOL Not a problem just an observation..I'm good with it all and appreciate every response and bits of advice I get when asking a question..Over 50 years of rving and living off grid in some kind of rv and I still have the bug and love the new technology to play with..Oh and I do like to just listen to others discuss things to see what just might apply to my way of camping.. Well said and many thanks Sir for the added important clarity - Admittedly, I do find myself occasionally guilty of self-induced poor wording (ugg…)!! 3 tons
3 tons 05/16/22 12:16pm Tech Issues
RE: Lifepo4 float setting?

Jaycocreek said: “Some here look down on others asking questions because maybe they respect some of the posters here and there opinions but it seems they forgot when they first started...” Wrong Sir, what you mistakenly call “looking down on others” (imputing here my ‘personal’ feelings…) simply means ‘your fine’ with battery-format topic shifting, and suggest that ‘anything goes’ is fair play (a sorta reminder of the ‘wild west’ - I donno?). Heck, who knows, one might assume that Elon Musk may soon be grappling with these same like-kind issues, but my guess is, it’s kinda doubtful he’ll be accused of ‘looking down on others’… Either way, I mostly concur with your otherwise well intended vantage point (e.g. different outlooks work well for me…), though it mostly dismisses the possibility that forum abuse occurs, and that to engage in such might also be viewed as ‘looking down on others’ in their own quest to arrive at honest discourse…Please consider too, that I only raised this subject after an uber loooong string of unfettered grift - Though we may see things differently, seems I should be able to have my (possibly minority…) dissent heard as well…Just saying…:) 3 tons
3 tons 05/16/22 09:23am Tech Issues
RE: Lifepo4 float setting?

More Crickets….lol (ugg…) 3 tons
3 tons 05/15/22 05:11pm Tech Issues
RE: Lifepo4 float setting?

FWIW, I’d like a response, and would want to know (in light of many months of ‘posing’ and endless ‘goal-post shifting’, ad nauseam….. ), how this determined misbehavior can continue to be defended, or even loosely justified??…I could easily go on - thus, why I’ve previously (though reluctantly…) advised, “discernment required” - in my view, such apparent ‘gamesmanship’, and ceaseless red-herring misdirects undermines normal and legitimate enquiry…JMO 3 tons
3 tons 05/15/22 04:19pm Tech Issues
RE: Lance TC - lithium - DC-DC charger question

Sorry, I had a typo…it is a 240A alternator, and it was a no-charge option. I received the Victron 12-12/30 today. The manual says for a 5 m wire run (approximately what I’ll have from truck battery to camper battery, it should be 6 AWG with a 60A fuse. I just want to double-check if that changes anybody’s guidance. It will be much simpler to run the standard 8AWG to 6-pin, but I don’t want to take undue risk. I’m not a dc2dc user, but it seems kinda odd to me that they would recommend a 60a fuse if it’s only a 30a charge device, thus, I don’t understand the manual’s call for #6…I’m a little lost… https://www.eaglecapowners.com/owners/attachment.php?aid=490 3 tons
3 tons 05/15/22 03:20pm Truck Campers
RE: Lance TC - lithium - DC-DC charger question

You need only be concerned what the alternator is capable of on a continuous basis, and the accepted norm for this is 25-30% of it’s nominal rating. So for a 270a alternator, the acceptable range would be somewhere between 67 and 81 continuous amps, so having two 200a/r Lithium’s myself (based on charge monitoring…) I in this regard, I don’t see how you’ll have any kind of problem - JMHO 3 tons
3 tons 05/15/22 10:51am Truck Campers
RE: Bigfoot dirty water streaks down sides from roof, solutions?

CW sells a spray on streak remover, other vendors may do as well :) …I’ve used it with some success on my former enclosed trailer and it’s not too very harsh… 3 tons
3 tons 05/15/22 10:37am Truck Campers
RE: Lifepo4 float setting?

Well, Since there’s nary a LFP enquiry that comes up where either BFL or PT don’t inject the heretofore ‘seemingly undeterminable’ (??) virtues of SiO2’s (rather than to tout on a dedicated SiO2 thread??…), except for the possible case of ‘morning after sickness’ (I donno?…..), I don’t get their ‘shape-shifting’ like motivation, or their insatiable excursions into highly speculative ‘LFP nuance’ (“learning” - Really…??) of a battery type that most others have long attested, while different, ‘are yet quite simple to operate’ (BTW, by this juncture, reams of deep-dive transparency is widely accessible to those of serious interest - but not so much with SiO2…), and of a battery type neither one of which have posited even the least stated interest in procuring?? So maybe it’s due to my simplistic mindset (kinda, “if it looks like a duck…” thingy - lol!), but after what’s been (say, since discovery of their coveted SiO2’s…) a relentless and never ending pattern of ‘uber rich in nuance’ ploys and rabbit-hole like LFP investigations, how long is one to keep feeding a most repetitive yet insatiable (in figurative terms) beast?? Therefore (over numerous months…), I’ve come to see these particular repeating enquiries as mostly (if not even abjectly) disingenuous (note: but always couched within the usual patina of sincerity), or maybe associated with a mischievous computer keyboard addiction employed to ‘capture’ folks otherwise scarce time…Admittedly, JMHO after many studied observations - trolling for attention is the road to nowhere… 3 tons
3 tons 05/15/22 10:00am Tech Issues
RE: New to lithium battery

otrfun, while I don’t use a dc2dc charger, thanks for expanding on this topic, and for the worthy additional in site - also I agree with your statement on LFP charging voltage (e.g. not to exceed 14.6v) being up to the user - Great points! 3 tons
3 tons 05/15/22 08:37am Tech Issues
RE: New to lithium battery

I can’t attest to the WFCO, but first you should have a charge strategy, meaning since you have a dedicated LFP charger, do you plan on also using the WFCO??… Either way, an AGM battery algorithm will likely work fine, but no need to routinely ‘fully charge’ the battery… However, LFP is a considerable investment, thus it’s Uber wise to know what is happening with your SOC, particularly when charging, this is why a Lithium SOC monitor is a critical component in my view - flying blind is a very poor $$ strategy… 3 tons
3 tons 05/14/22 04:51pm Tech Issues
RE: New to lithium battery

Yep, a dc to dc charger can do exactly that, but if one opts to do such I would only suggest a cut-off switch between the vehicle and the camper to guard against prolonged charging :) 3 tons
3 tons 05/14/22 03:55pm Tech Issues
RE: Lifepo4 float setting?

It would be interesting to see the results of such (both pro and con), no doubt SiO2 remain a viable choice for many…
3 tons 05/14/22 02:36pm Tech Issues
RE: Lifepo4 float setting?

Agreed, a new thread would be ideal… 3 tons
3 tons 05/14/22 02:02pm Tech Issues
RE: Lifepo4 float setting?

Not to be naggy, but (since SiO2’s have already been mentioned…), I wonder if BFL may have done some similar extensive ‘nuts & bolts’ bench-top vetting of his SiO2 (with BFL, highly likely!), and if so, perhaps he might be willing to share his findings with us??…Nothing wrong with asking I hope, and may serve well to refute a few SiO2 misnomers….Just a random thought… 3 tons
3 tons 05/14/22 12:47pm Tech Issues
RE: Lifepo4 float setting?

As a practical matter, looong running LFP personal testaments and anecdote's are no substitute for extensive bench testing, therefore I believe the only possible way satisfy BFL’s thirst at nuance (based on past threads and continuously evolving goal post - IMO…), may be for him to obtain his own LFP and conduct his own extensive test regiment and report back*… However, I presume that soliciting funds to this end is against forum rules… *(hopefully improved over the Vector-dueling charge controller test…) 3 tons
3 tons 05/14/22 12:01pm Tech Issues
RE: Lifepo4 float setting?

BFL said, “ I am still getting abuse from 3-tons… Meanwhile he just used the Solacity guy as a reference in a recent post in this thread (13 May at 0732), and then when after that, I used the Solacity guy as a ref, he said that guy is not to be believed! Makes you laugh.” True enough - My bad, I didn’t mean in any way to discredit Solacity’s info, I was only pointing to one’s lack of hands-on LFP evaluations…In my view, theory IS important, but Hands-on often trumps the theoretical, and to BFL (and others), therein lies my distress …Sorry for any unintentional keyboard confusion… 3 tons
3 tons 05/14/22 11:42am Tech Issues
RE: New to lithium battery

Goggles 14.6 volt figure merely refers to the upper charge limit before BMS protective cut-off…From my own experience, LFP’s are happy to charge even in the high thirteensYou will never get a 100% charge without a DC-DC charger.Why would you need or want a 100% charge (14.6v) to begin with? Unlike lead-cell batteries, lifepo4's subjected to 100% SOC (14.6v) on a constant, short-term basis experience reduced cycle life. 13.6v will still net 99% SOC (and a higher cycle life), although at a slower charge rate. Long-term float at =>14.6v can permanently damage a lifepo4. If you're the set-it and forget-it type, a 14.6v single-stage "lithium approved" converter/charger is the worst thing you can use to charge a lifepo4. Agreed, X2 3 tons
3 tons 05/14/22 10:34am Tech Issues
RE: Lifepo4 float setting?

Stir find me an Li battery that provide 9C for 5 seconds, 4C continuous, and be charged at -40. You may find that is unobtainable. As to size, I have room for 7 Group 31, so that is not an issue.Why would I need 9,000 amps, or even 4,000 for that matter?? If my battery actually drops to even -20 my energy and heating systems have failed to the point I am already rolling out. I mean propane does not even vaporize at -40. I would have to assume utility power is available at these temperatures(no battery required). Temps at -40 is an expedition vehicle and preparation is far beyond virtually all RVs. No reason to proclaim this as an ordinary criteria for an RV on this forum. Better suited to an expedition vehicle forum. https://www.globalxvehicles.com/uxv-max.html dont want to go there, I went there and searched SiO2 and here is a quote from the first post that came up . "With the exception of cold weather charging, the specs on these are almost identical to any other flavor of lead acid battery. They are not really comparable to lithium with regard to cycle life, energy density, recharge rate etc. There do appear to be some folks shilling these on some RV themed sited that are making some very unrealistic claims about their performance. In the end, they are just extra jellied gel-cells. The low temperature charging 'issue' with lithium is a bit overstate and fairly easy to address if it does apply." Steve Thanks very much for highlighting this valuable information!!….FWIW, I’d made several attempts to gain a better understanding of SiO2’s nature, but my search efforts always failed to yield even a single independent White Paper (except for a CAN vendor’s in-house paper…), and unfortunately, this lack of independent findings may have stung (??) a poor few who’ve already taken the SiO2 plunge…I’ve never once ‘knocked’ SiO2’s for others (but doesn’t work for me…), though may now warrant a re-evaluation for some - JMHO It’s definitely kinda sad to see Caveat Emptor raise it’s ugly head again (ugg)… 3 tons
3 tons 05/14/22 10:28am Tech Issues
RE: Lifepo4 float setting?

You didn’t mention your stats, but it’s entirely possible with my 400a/hr LFP and 660w of solar - with 400a/hr LFP concurrent with harvest, and 2/3rds duty cycle835w solar, [email protected] li battery. If I ran air with that during the day I may not have much left over for evening use! As I stated, I calculated it out at roughly 5 hrs (with a manageable reserve till next harvest period), 2/3 duty cycle concurrent with harvest drawing 9.5 ac amps (post comp warm-up) …Even my old GC’s (two 6v) would run it for a max of 1.5 hrs, 2/3duty cycle (to 50-55% SOC) with just the previous 440w of solar…But I just try to take the edge off the heat, 10 or so degrees lower does the job for me… 3 tons Upon edit, I need to point out that this scenario is with a 10’ single slide truck camper..
3 tons 05/14/22 09:07am Tech Issues
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