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 > Your search for posts made by '3 tons' found 563 matches.

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RE: SiO2 Batteries and High Amp Draws

PT, you posit some Interesting though somewhat speculative goals (IMO here only)…However (due to cost and such..), since folks are still somewhat early in the SiO2 discovery process, rather than a speculative approach, you might consider (before proceeding…) waiting to take advantage of BLF’s actual ‘hands-on’ test results - most likely a valuable resource for an objective evaluation…Per your previous (as I recall…) it seems as though time is still on your side, eh…Just an idea :) 3 tons
3 tons 05/22/22 10:49pm Tech Issues
RE: SiO2 Batteries and High Amp Draws

High draw per capacity ability and higher charging efficiency are different things LFP has both; SiO2 has the first, not so much of the other AFAIK but will know when I plot a charging profile Ha! Well I suppose then by default that’ll soon make you RV.net’s own SiO2 ‘Resident Expert’!!…FWIW (now having expanded to 8 dang PV panels!!), solar has gotten cheap and adding more will greatly help overcome slower charge recovery - just saying… 3 tons
3 tons 05/22/22 08:50pm Tech Issues
RE: SiO2 Batteries and High Amp Draws

Unfortunately, I don’t possess that level of detail, mostly because (with level best honesty, pleased, since faster than my former GC’s) I’ve not felt any desire to develop such…But some others here (say, far more attentive than your’s truly - lol!) may be better able to inform… Having said that (and from experience…), yes there is a gradual bit of voltage drop, but as I’ve previously posted (e.g. testing even at zero % SOC while at 125a Keurig brewing…), yet still no inverter or BMV 712 low voltage alarms - note, a single Aims LFP bench tested at 215 actual a/h…)… FWIW, From all that I’d past researched (non-vendor sourced) and read here, I’m honestly not aware of any actual user disagreement concerning LFP’s quasi-faster charge recovery time (though I now lack the GC means to quantify such…), however this has just been my ‘seat if the pants’ but recurring experience (though not a ‘one off’!!)…Admittedly, I’ve given you a lot’s of ‘blow back’ in the past, yet with your most recent post, you’ve conveyed (at least in my view) a far better sense of where you’re coming from and which I can better relate to and appreciate- just saying…:) 3 tons
3 tons 05/22/22 06:47pm Tech Issues
RE: SiO2 Batteries and High Amp Draws

I believe the 60 amp limitation is likely due to heat and the closeness of prismatic type cells - ain’t nothing wrong with that…Alternatively, cylindrical type cells have air spacing in between and often capable of 1c, (as with Aims and as I recall BB)… Either way, know that using simultaneously my 100a ProSine 2.0 inverter-charger and the PD 9245 in boost, the highest combined amperage I’ve ever witnessed going into the two paralleled 200a/h LFP’s (say, starting out at about 30-35% SOC) is just over 70 amps (say 72a), but as you’re aware the current shortly thereafter begins to taper downwards - can’t recall exactly, but probably drops to mid or just over 60a within only about 15 min… 3 tons
3 tons 05/22/22 05:21pm Tech Issues
RE: SiO2 Batteries and High Amp Draws

I got the SiO2s in late 2020 Seldom used since with covid reducing dog events. Took the TC out myself the other day to see that it all still works now things are starting up again Heck BLF, they’re almost brand new then :) !! So, with ‘lots to recommend’, and many years of what’ll surely be dependable service that awaits, ain’t no dang reason to be looking back!! Just Enjoy!! 3 tons
3 tons 05/22/22 03:21pm Tech Issues
RE: SiO2 Batteries and High Amp Draws

StirCrazy said: “haha, weird that they are so expensive there for LFP. you had to order the Sio2 and just doing a quick search a drop in bought online from alberta lithium is 550ish this one but ya it makes sence if you alreay had one to get another , after all what are you going to do, throw it out.” Yet I don’t view this as some kinda ‘dire situation’ but rather just an alternative path to arrive at one’s own particular energy needs…For PT, cold weather is of paramount concern, so it’s great for others to know that there’s a viable alternative that (admittedly here, just from my own perspective…) has excellent performance characteristics though (IMO…) seemingly more similar to other FLA’s (i.e. but higher currents, and no sulfating = longer life) than to the nearly flat voltage plateau of LFP’s… Cost is yet another another factor, and though prices more recently have appeared to drop, in the not too distant past (e.g. ‘conditions on the ground’ at the time…) LFP cost for our neighbors in the north seemed excruciatingly high ($$), likely making acquisition a relative rarity…Again, just my lay opinion only, but ultimately the BEST overall option might easily and logically have been to go forward using the very same battery type - No dreaded after thoughts required !! 3 tons
3 tons 05/22/22 12:47pm Tech Issues
RE: SiO2 Batteries and High Amp Draws

Ha! now that’s truly a great story, in fact, ‘loved it’ :) though not all too uncommon - I can’t hardly count how many times that kinda thing has happened to me (ugg!), in a more memorable case, a series suspension upgrades, undo’s, then reworks, and electronics is yet another - lol…Retrospection is what makes us the ‘experts’ we are (lol!), but lucky for you, there’s no need for an dreaded undo!! 3 tons
3 tons 05/21/22 11:16am Tech Issues
RE: SiO2 Batteries and High Amp Draws

I do view these findings very interesting and ‘demonstrable objective’ :), Many Thanks for posting this!! No doubt, a solid case can be made for SiO2’s, particularly regarding cycle life (per Azimuth), uber high discharge amps, no sulfating (no equalizations needed), and the ‘hands down’ cold weather king…At first glance, initial acquisition cost might put some folks off (as with a few LFP…) but in many ways superior to some other types, thus, (similar to LFP’s…) for some folks, likely can be well justified over the loooong haul… Again, Great Post !! 3 tons
3 tons 05/20/22 08:10pm Tech Issues
RE: Renogy Battery Monitor vs Trimetric UPDATE- Camping Test

Ha, good to know!! All I can say is I sure hope your ol’Hudson came with a heater!! 3 tons
3 tons 05/20/22 12:11pm Tech Issues
RE: Renogy Battery Monitor vs Trimetric UPDATE- Camping Test

If the battery is known to be fully charged, then you apply a known, timed load such as a halogen shop lamp on it, I would think that would be a good wattage reference point to begin a measured recharge…While maybe not 100% precise, this might be a fair enough exercise (with a little arithmetic :) ) to arrive at charge efficiency (a kinda power out vs power in thingy…). 3 tons
3 tons 05/20/22 10:44am Tech Issues
RE: Renogy Battery Monitor vs Trimetric UPDATE- Camping Test

BLF, After about 11 yrs of very accurate SOC measurements from two GC’s using a Xantrex LinkLite, upon switching over to LFP’s, no matter what settings I attempted (even borrowed Victron's settings!), I was never able to get the LinkLite to ‘reliably track’ SOC’s beyond about one discharge cycle - in the end, I could only conclude that it’s built-in algorithm was not suitable for a non-FLA voltage profile (I donno?)… In light of this (I don’t claim to know much about SiO2’s!!), it would be interesting to see if you’re able to work through this…(trust, been there done that!!) - Best of luck ! 3 tons
3 tons 05/20/22 08:46am Tech Issues
RE: Propane won't flow? Maybe this....

More correctly, it’s called an ‘excess flow check valve’ - just saying :) 3 tons
3 tons 05/19/22 08:30am Tech Issues
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
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