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Post by playersz28 on Nov 6, 2018 22:25:39 GMT
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Post by tattoo on Nov 6, 2018 22:31:31 GMT
For the build that the OP is doing I wouldn't want flooded batteries at all. It's a van and they need to be vented plus I wouldn't want them in my living space even with vents. Yes sir flooded batteries in a living space is a very bad idea.... Unless it's vented to the outside.....
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Post by swampmonster on Nov 8, 2018 18:50:39 GMT
That install will go a huge way toward helping you assess the actual charge condition of your batteries....Do NOT rely just on voltage or even a hydrometer when assessing battery charge status. Instead add a true battery monitoring system that incorporates a quality shunt wired correctly and a batt monitor programmed correctly....It will double the life of your batteries and allow you to properly charge them. I totally disagree,,,,, A Hydrometer is the best way to check your batteries if you have flooded batteries... Much better than what any meter will ever tell you....
Now with a sealed battery what he suggested is correct...
Yeah, right....As if I'm going to go out in the weather daily and dip each cell with a frigging hydrometer?....Bad enuff you gotta check them every month for water level, but daily for end of day charge status?....LOL, no way! Or how about thru the day when you want to monitor exact bank level in percentage, or instantly track current draw and charging in amps?...Your CC won't tell you that unless it too incorporates a shunt and the shunt is wired in correctly like some Blue Sky CC's offer...Those features offered in several Renogy CC's don't include a shunt that is properly wired, so those readings and all derived from them are total garbage. Nope, for me it's worth 200 bucks to have a top quality battery monitor on the wall next to my charge controllers with a shunt that is wired correctly....In fact I got two of them:) I got 1400 bucks invested on my main solar battery bank, and another 700 in my aux solar bank, so YEAH, I will certainly install quality metering and shunts to extend the life of those expensive batteries to their full design potential...All I gotta do is pay attention to their indications and not allow less accurate means of determining SOC to cause the batteries to "walk down" or sulfate into useless bricks. But that's just me, and that's the way I think.
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Post by tattoo on Nov 8, 2018 18:57:56 GMT
Nope, for me it's worth 200 bucks to have a top quality battery monitor on the wall next to my charge controllers with a shunt that is wired correctly....In fact I got two of them:) But that's just me, and that's the way I think. It's your money waste it any way you want.....
I check my water level once a month on the 27th, it takes 10min big deal.... And I check with my Hydrometer every other month it takes 10 min more, 20 min total.... Big deal....
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Post by tattoo on Nov 8, 2018 19:03:01 GMT
Or how about thru the day when you want to monitor exact bank level in percentage, or instantly track current draw and charging in amps?...Your CC won't tell you that unless it too incorporates a shunt and the shunt is wired in correctly like some Blue Sky CC's offer. I have no need to check for exact bank level... I could care less..... LOL and your worried about it taking to much time to check the water level? LOL
Like I said before I don't need a shunt......
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Post by swampmonster on Nov 8, 2018 19:24:52 GMT
Or how about thru the day when you want to monitor exact bank level in percentage, or instantly track current draw and charging in amps?...Your CC won't tell you that unless it too incorporates a shunt and the shunt is wired in correctly like some Blue Sky CC's offer. I have no need to check for exact bank level... I could care less..... LOL and your worried about it taking to much time to check the water level? LOL
Like I said before I don't need a shunt...... Yaknow Tatt, this forum is here to ask questions where people with proper knowledge and experience can contribute correct answers....These posts will be here forever as a resource for all afterwards....When members constantly turn every topic into a pissing match, it quickly becomes a place where only they populate...Gets a bad rep, yaknow? Now seriously, are you saying that you really don't care what your daily SOC is?....And that you don't monitor status thru a shunt?...Yet it is also you that has stated several times here that you monitor your total daily KW generated and even graph it out....And one time in particular that you relied on your CC to total that for you....Well friend, if all that is true, you certainly do need a shunt and meter because once again you have talked yourself into a false "safe zone" where your allow your charge controller to blab useless misleading info. BTW, if your CC can't accurately measure voltage, how can it accurately determine the histories you refer to?...Especially without a proper shunt?
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Post by swampmonster on Nov 8, 2018 20:06:02 GMT
Nope, for me it's worth 200 bucks to have a top quality battery monitor on the wall next to my charge controllers with a shunt that is wired correctly....In fact I got two of them:) But that's just me, and that's the way I think. It's your money waste it any way you want.....
But wait! You are the guy that spouts about lithium batteries....But you got screw top wet cells?...LOL. Didyaknow that BMS is critical to all types of batteries?....ESPECIALLY lithium!....Yup several lithium batteries have a complex Battery Management System built into them....Less expensive lithium batteries require you provide the battery management system external to the battery, but YOU MUST provide it or be willing to toss 600-1000 bucks per battery instantly in the trash. Improperly managed lead acid batteries of all types take much longer to self destruct, but LAWD they are a whole lot cheaper than lithium. .....And you preach to ME about wasting money?....Friend my money spent is a wise INVESTMENT, not tossed in the trash.
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Post by tattoo on Nov 8, 2018 20:19:50 GMT
But wait! You are the guy that spouts about lithium batteries....But you got screw top wet cells?...LOL. LOL Nope I don't like Li batteries remember? You must have me confused with someone else...
I don't have to unscrew anything just one lever and the caps are off the battery.... You need to come into the 20th century....
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Post by tattoo on Nov 8, 2018 20:30:05 GMT
Yaknow Tatt, this forum is here to ask questions where people with proper knowledge and experience can contribute correct answers....These posts will be here forever as a resource for all afterwards....When members constantly turn every topic into a pissing match, it quickly becomes a place where only they populate...Gets a bad rep, yaknow? Now seriously, are you saying that you really don't care what your daily SOC is?....And that you don't monitor status thru a shunt?...Yet it is also you that has stated several times here that you monitor your total daily KW generated and even graph it out....And one time in particular that you relied on your CC to total that for you....Well friend, if all that is true, you certainly do need a shunt and meter because once again you have talked yourself into a false "safe zone" where your allow your charge controller to blab useless misleading info. BTW, if your CC can't accurately measure voltage, how can it accurately determine the histories you refer to?...Especially without a proper shunt? No pissing contest here..... You have posted several times and I haven't said a thing..... Just when you give misinformation is when I say something...
Nope I could care less about the Battery% SOC is.... It's useless.....
LOL Where did I say that I graph what I use everyday? Really how do I do that? I have no way of doing that...... You really need to keep track a little better of who says what....
My CC tells me how much power I made in a day if I look..... The only reason I have looked at my CC in the past few days is because Z28 asked if anyone else's CC was doing what his was..... Other than that I rarely look at it...
How long have you had your solar system? Be honest if you can.... Or is it even up and running yet?
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Post by tattoo on Nov 8, 2018 20:39:29 GMT
Didyaknow that BMS is critical to all types of batteries?....ESPECIALLY lithium!....Yup several lithium batteries have a complex Battery Management System built into them....Less expensive lithium batteries require you provide the battery management system external to the battery, but YOU MUST provide it or be willing to toss 600-1000 bucks per battery instantly in the trash. LOL Now your an expert on Li batteries..... LOL
When you came here what 2 weeks ago you didn't even know that you could hook up a Dead/turned off Li battery to a CC to get it to come back to life....
LOL Learn as you go then your an expert..... LOL Read away....
Like I said this back and forth isn't going anywhere..... But if you want to keep learning keep asking questions... I'm here to help new people to solar....
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Post by swampmonster on Nov 8, 2018 20:47:26 GMT
But wait! You are the guy that spouts about lithium batteries....But you got screw top wet cells?...LOL. LOL Nope I don't like Li batteries remember? You must have me confused with someone else...
I don't have to unscrew anything just one lever and the caps are off the battery.... You need to come in to the 20th century.... Yaknow, if you had a shunt and Trimetic, you could buy those inexpensive 80 buck 6 volt golf cart Duracels and they would last you as long or longer than whatever wet cells you are neglecting now....200 bucks and it is forever....In the link below, ignore the 100 amp shunt, instead use a Deltec 500/50Mv Loosen up...You KNOW you really want one, huh? pantherrvproducts.com/trimetric-tm-2030-rv-battery-system-monitor-100-amp-shunt/?gclid=Cj0KCQiA2o_fBRC8ARIsAIOyQ-mSgKzI1XsBInmt2kklQHM1RJ_rcOwqX5tJEcp5xlQIc9WXbFH2_wcaAuYnEALw_wcBWay back in the 1800's old Ed Weston knew he had to have one or he never would have invented the voltmeter, ohm meter and amp meter, or the Weston Cell battery...And that battery for 100 years was the world wide calibration laboratory standard...Many still exist that work like new even tho they are 80 years old. Old Ed could tell you about how your CC reading in error is NOT acceptable....Because of his shunt he invented, he back then could measure in the thousands, er...after the decimal point ....Oh, he is also the guy that invented the very same shunt we use today....So yeah, even tho I don't live in the 1800's there is still MUCH to learn from those days.
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Post by tattoo on Nov 8, 2018 20:56:03 GMT
Yaknow, if you had a shunt and Trimetic, you could buy those inexpensive 80 buck 6 volt golf cart Duracels and they would last you as long or longer than whatever wet cells you are neglecting now....200 bucks and it is forever.... Don't need a shunt and I have those Duracel 6v batteries your talking about... They are working just fine and I don't need to waste my money on fru fru to impress people......
Have you gotten your first Solar system up and running yet? You will really like it once you get it going....
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Post by bupkis on Nov 8, 2018 20:58:56 GMT
neither you nor anyone else know what charge efficiency to program into a trimetric, it changes over a wide range of state of charge. nor do you know your battery capacity.
more inaccurate tools.
I do love that the Ralph (bogart engineering) goes with PWM and over MPPT! it gets hot in CO also.
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Post by tattoo on Nov 8, 2018 21:00:26 GMT
Way back in the 1800's old Ed Weston knew he had to have one or he never would have invented the voltmeter, ohm meter and amp meter, or the Weston Cell battery...And that battery for 100 years was the world wide calibration laboratory standard...Many still exist that work like new even tho they are 80 years old. I have an old GE DR fridge that's going on 80 years old that runs off of my solar system 24/7.....
Old things should last forever they were built that way........
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Post by swampmonster on Nov 8, 2018 21:04:57 GMT
Yaknow Tatt, this forum is here to ask questions where people with proper knowledge and experience can contribute correct answers....These posts will be here forever as a resource for all afterwards....When members constantly turn every topic into a pissing match, it quickly becomes a place where only they populate...Gets a bad rep, yaknow? Now seriously, are you saying that you really don't care what your daily SOC is?....And that you don't monitor status thru a shunt?...Yet it is also you that has stated several times here that you monitor your total daily KW generated and even graph it out....And one time in particular that you relied on your CC to total that for you....Well friend, if all that is true, you certainly do need a shunt and meter because once again you have talked yourself into a false "safe zone" where your allow your charge controller to blab useless misleading info. BTW, if your CC can't accurately measure voltage, how can it accurately determine the histories you refer to?...Especially without a proper shunt? ...
Nope I could care less about the Battery% SOC is.... It's useless.....
My CC tells me how much power I made in a day if I look..... Other than that I rarely look at it...
Do you also neglect your gas gauge? My last GF bragged she had ran out of gas on every road in her county....Ya'll kin?
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