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 > Your search for posts made by 'full_mosey' found 31 matches.

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RE: The perfect RV campground

OP; Then stop using the term camping. Why not ask "What is missing when you park?". Perhaps you need a 10 year rule and a minimum length rule. :) HTH; John
full_mosey 03/29/20 10:25am Family Camping
RE: Battery: AGM vs. Flooded Cell

... Trojan recommends 2.47V/cell on flooded batteries ans 2.45V/cell on their AGM batteries. ... To restate using 12V; that is FLA 14.82V and AGM 14.7V. Now, Trojan does not require, they only recommend. Do they specify any minimum charge Voltage, or maybe a range that includes 14.4V. IOW, won't their batteries be just fine at 14.4V? Over the past five years or so, I have become very picky about matching the charging specs of my charging sources and batteries. My newest inverter/charge on the 620Ah AGM bank has nine charging profiles. I change the profile settings based on average battery temperatures. My solar charger keeps a log of the temps. When recommending any major change of batteries, don't you agree that it would be fair to consider discussion of the compatible charging solution? HTH; John
full_mosey 03/29/20 08:13am Tech Issues
RE: Battery: AGM vs. Flooded Cell

Make sure your battery charging system(s) can handle AGMs. Slightly different charging voltages compared to flooded lead acid. I wish that people that recommend twin 6V Golf Cart batteries would also caution that the buyer should make sure their charging system will be compatible. AGMs do just fine with 14.4V chargers. Isn't it common for GC batteries to require 14.8V? And what about the GC equalization charge that can need over 15V? HTH; John
full_mosey 03/28/20 04:27pm Tech Issues
RE: The perfect RV campground

RV campgrounds? I believe you spelled RV park or RV resort wrong. RV campground is an oxymoron, like jumbo shrimp. Fixed that for you. :) HTH; John
full_mosey 03/28/20 03:57pm Family Camping
RE: Battery: AGM vs. Flooded Cell

Price wise you can look into used AGMs. I am in a good place where we have a retailer that sells AGMs that are rotated out from industrial use on a regular cycle. $75 for 110Ahs. I recently got 4 x 155Ahs to build a 620AH bank at $428 OTD. Hardly more than the price of a single new retail AGM. They are dated Mar 2013. I charge with a 2200W/75A inverter/charger, plus 400W solar. In another system I have 2 of them dated Oct 2009. I expect the last 4 to last 10+ years as well. Flooded batteries are not as much a worry over extensive maintenance; whereas the penalty of letting the plates run dry is catastrophic. An ammeter is the key to knowing the SOC of AGM during charging. HTH; John
full_mosey 03/28/20 01:37pm Tech Issues
RE: Clearing the snow from the solar panels

I love technical data on graphs. Was this graph from output of the controller or did you DIY it? DIY. I have Morningstar controllers and have basically re-engineered their free MSView software into the Raspberry(RPI). One big improvement is that the RPI connects to my hotspot and provides a web server that I can reach through any web browser device which is also connected to my hotspot. The graph is a screenshot posted from my workstation located inside the house. The van is in the driveway. Here is a 10 day stacked-bar graph showing the daily Amp hours of charging from the two controllers. I included the Firefox window where you can see the IP Address of the RPI.
full_mosey 02/05/20 09:55pm Tech Issues
RE: Panels don't run things

What is your response to people who ask you "what will your solar panels run?" (run, as in power, operate) It keeps my beer cold! HTH; John
full_mosey 02/05/20 12:52pm Tech Issues
Clearing the snow from the solar panels

This topic has been moved to another forum. You can read it here: 30036847
full_mosey 02/05/20 12:42pm Technology Corner
Clearing the snow from the solar panels

It is just a graph showing the panels waking up at the crack-of-Noon. The graph covers a two hour period. The panels were covered with about 6 inches of snow last night. There are two solar systems each consisting a 200W panel with an MPPT controller. The graph is an overlay of both systems. There are two legends. The data is gathered at one minute intervals from the controllers by a Raspberry Pi 3B. Each controller is producing about 50W or 25%. The panels are not tilted to 60 degrees and the sky is completely overcast with more snow expected this PM. HTH; John
full_mosey 02/05/20 12:42pm Tech Issues
RE: Solar and Charger into one?

Anyone tackled this? Yep! See my profile. HTH; John
full_mosey 01/25/20 11:57am Tech Issues
RE: AGM Mystery Capacity Crash Below 75% SOC UPDATE

100lb AGMs sound like 4Ds Some of those can be 200AH, while my 8D at 150 lbs is rated 250AH. AGMs except Lifeline seem to have spec max charging at about 30% charging rate. So 50 amps on 150AH works. I had the 100AH AGMS for a year before they got in this MH and for the two years since they have been recharged per Mex's rules (20% bulk, 0.5/100) The 8D was second hand so I don't have its history. It has worked ok for a year until this started. It seems to arise from repeated high amp draws where heat must build up inside and warps or cracks the plates somewhat. One high amp run I can get away with, maybe--we'll learn more about that when next out camping. The mix of 27s with these AGMs is a quick-fix attempt to get more time with these AGMs before I have to get a new battery set. One of these days I will have four new batteries all the same, and have no more trouble :) I use them like they are 150Ah. There is a 100lb Lifeline that is 150Ah. They are 13+in long and 11+in tall. I do have a G31 Johnson Controls and these are basically just taller. I lifted the dinette seat and the label reads 'pwhr12500w4fr'. I have read that as 12V, 500W. I used the 2 with the 1000W inverter and the 4 are used with the 2200W inverter. The spec sheet includes a constant Watt chart. I cannot meet the 20% rule with the 4. The charger is 75A and the 600Ah total for the 4 would call for 120A to get 20%. Adding 20A solar which usually is not usually coincident is only 95A. However, I am a stickler for getting to .5%. I will be running capacity tests in Oct. I expect to draw 150A for 2 hours to prove the bank is ready for next year. I too like a silent breakfast. That is extreme though. When I first started using a converter, I was happy to get 80A for 30 minutes from a 79Ah Deka. The Spartan charger calculates ABS time during Bulk. The time can be from 1 to 12 hours. I can manually restart the Spartan and get an extra 1hr ABS as often as I want. HTH; John
full_mosey 09/28/19 05:31pm Tech Issues
RE: AGM Mystery Capacity Crash Below 75% SOC UPDATE

I do in fact adjust the charging voltage for temperature, so that when camping in February and ambient is 35F, I will set 15.2 instead of 14.7 as in July. The adjustable voltage PowerMax "LK" line of converters lets you do that manually. My old VEC1093DBD portable charger has built in temperature comp and you can see it working when it operates at higher or lower voltages. Neither compensates for battery internal temperature though, just ambient. The AGM guides insist upon temp comp. If you set the spec 14.4 (for 77F) in February at 35F, you will be undercharging the AGM, with no way to see the SG failing to rise to the right amount. With temp-comp charging, you do not manually set the charge Voltage. There is no point in discussing SG with AGMs. If you will read through my linked topic you will see that I use the .5% rule when charging. Float is optional and NOT a valid charging Voltage. You must eventually apply charging Voltage until the .5% rule is achieved. My solar chargers will repeat and lengthen ABS daily as necessary until the .5% rule is done. I have graphs that show when the solar is falling behind and that is when the genny is used. Charging can be spread out over days within limits. HTH; John
full_mosey 09/28/19 04:17pm Tech Issues
RE: AGM Mystery Capacity Crash Below 75% SOC UPDATE

... --When doing my capacity testing with Wets at the 20 hr rate, .. Here's a bit of heresy. I don't know my SOC and my battery specs do not include any AH rating. I do not use an AH meter(fuel guage). Ok, they are Eaton Powerware label AGMs and weigh 100.2lbs. 100lb AGMs have around 150AH ratings. I work with that. I have a PDF spec sheet but the link to the Eaton website is now broken. The spec sheet lists; 260 full discharges, 800A for 5 sec, 50A charging max, etc. Apparently they are tel-com pulls. I have two sets; a set of 2 that I have used since 2015, and a set of 4 that I have used since 2018. The batteries are 5+ years old when I get them. The set of two are dated Oct 2009 and the set of 4 are dated Mar 2013. I believe they are UPS type. When I bought the newer set last year, I also bought a inverter/charger. This his has a conditioning setting similar to the Lifeline 5.5 Conditioning procedure. I used this procedure on each battery before installation in my van. The older set of two are going into my new TT along with a 1000W/50A Magnum. I have had 2 AGMs fail since 2009 when I switched. One was a Bass-Pro(Deka 8A24M) and the other a Optima Blue 55AH. Both would only show 10+ Volts at rest after charging. Both failed suddenly and not over a period of time like yours. I don't mix battery types. Did you charge yours separately or all together as one big bank? HTH; John
full_mosey 09/28/19 03:47pm Tech Issues
RE: AGM Mystery Capacity Crash Below 75% SOC UPDATE

I have always used the same voltage vs SOC at all ambient temperatures. Is that proper? The AGM loses 15% capacity at freezing vs at rating temp of 77F, so is it still 13.0v when full? BUT at freezing temp, your charging rate of 14.8 is now supposed to be adjusted upwards to 15.2 volts to compensate for the cold. Voltage going opposite directions there maybe. ... Hi BFL13; In support of temp-comp charging, I offer link. I also believe the electrolysis(bubbling/gassing) that is sought after by FLA users, is a waste of charging energy for AGMs, as there is no requirement to stir the electrolyte .I know AGMs are recombinant, but IMHO, that is a recovery process in the event of gassing. A temp-comp charger should automatically charge faster/cheaper while avoiding electrolosis. I have looked at the annual temp variance for BC. Your temps are influenced by the Pacific Ocean and do not vary widely like they do in Oklahoma, USA. I need temp-comp. My battery temps can vary 10C inside of 24hrs. I have graphs that show daily charge Volts decreasing automatically while charging is in progress. No set and forget knob twisting will do that. HTH; John
full_mosey 09/28/19 02:31pm Tech Issues
RE: Charging ?

What is the amp capability of your charger sir? I read your article thrice BTW. Yout=rs sounds appropriate for solar but it sounds like it needs slightly more than an arm-twist to compensate for adding a battery. The most important difference is this. You can put the power supply and timer together for eighty dollars. It can actively envelope 100 to 240 AH range it's how much you have to twist that dial. Your system sounds much more appropriate for solar. I need to repeat this again THIS IS NOT A CONVERTER IT IS A CHEAP EFFECTIVE BATTERY CHARGER THAT ELIMSTES EARLY BATTERY DEATH. Eliminate is a powerful word. Click off the breaker for the converter Go to a side bay Grab the Meanwell plug it in Connect clamps to battery posts Twist dial When the Meanwell clicks off the generator will surge. Shut the generator down. Effectiveness Simplicity Ease of use COST adaptability Longevity Your idea has merit but it's not for this job. Remember, when a converter returns home and goes on a pedestal it has the luxury of 24/7 error correction. Then a simple twist of a dial when the Meanwell has engaged once again on shore power can compensate and correct for the chemical incompatibility between your algorithm and reality. This is not celestial mechanics or counting quarks. It is a broad span voltage correction. Inexpensive and easy to understand. Your idea is intriguing but must be made adjustable. Electricity and chemistry amalgamation is not the easiest subject. The Meanwell and Timer is awesome I don't know what you mean by 'this job'. The question is whether my system is automatic, not whether it is for 'this job'. It is based on my collecting logs for review and setting up an automated system that would saturate-charge my battery bank. I believe I have met that goal. Since you have read the topic three times, I will attempt to make a clearer explanation. The details of the charging amps and size of the battery bank are irrelevant. However, the bank is 620Ahs AGM, 400W solar, 75A PFC charger, and 1600W running inverter genny. At 10k feet, the genny gives 1000W. Each day there is a timed charge with the purpose of reducing the charging Amps to the 0.5% goal. That definition is straight out of the Lifeline manual, pp 5.4 - Charging. This is done by the solar controller when it starts a new day. It is set to compare overnight low Volts(onlv) using two trigger Voltage values. If the onlv is above 12.6 then the Abs timer is set to 1hr followed by Float. If the onlv is above 12.4 then the Abs timer is set to 2hrs followed by Float. Otherwise(below 12.4) then Float is cancelled and Abs is until dark. These tests are features built into the solar controller. So you see, an onlv falling low Volts will be caught and corrected in the same way you might add time to your twist timer. Simultaneously, I have a small computer keeping a log by fetching key statistics from the controller each minute. I can examine this log and produce graphs as you have seen in the other topic. I use this computer to talk to the controller. That is how the Voltage and time parameters are set up in the controller. I believe this makes the system adjustable in real-time. I could use the computer to examine ongoing operation and send ad-hoc commands to the controller. After about a year and a half of operation I have seen no need for this. I have used all available roof space for solar panels and I do have a 75A PFC inverter-charger which is all my genny can handle. The 75A charger allows the Amps to be adjusted. I don't have any objection with a Meanwell power supply. I do have a question. Which Amp one would be useful at 1000W input considering PFC? How would that outperform my PFC 75A adjustable charger? HTH;John
full_mosey 09/07/19 02:44pm Tech Issues
RE: Charging ?

My idea of hand's off charging is to start the generator, twist the timer dial then do other things. No blinking lights, no buttons to press again and again. It doesn't take a triple-digit IQ to periodically check for cell bubbling. the first few times when recharging the amount of dial time and the first appearance of initial bubbling in a wet battery. When you see bubbling the battery is charged. But the battery needs REGULATED voltage to make any sense out of it. You could put too high a voltage setting the potentiometer voltage. This is why I play devil's advocate and selected 14.4 volts for everything. Saturated charging is when a SANE finish voltage is selected (14.40) and the charger then achieved 14.40 within its ability. Obviously, a 40 amp charger can't do this immediately with one charger and it can not power a 150 amp grade Meanwell with a 2,000 watt generator. That's not fair and it's a failure of suppled AC power not saturated power. Saturated power is the key to saving time and money and frankly listening to a rattling generator is not one of my favorite activities. With saturated or non saturated charging, there are no totally unscientific and absurd drops in voltage after X minutes of charging. The instant the voltage drops without acheiving saturated voltage YOU LOSE. Charging time increases radically and even worse some idiot designed smart chargers drop even further making an absurd 12 hour recharge a 30 hour ordeal. Batteries that are forced into 13.2 volts when they could be at 14.4 volts lengthen charging hours needed x 10 are ridiculous. An insult to human intelligence. The human brain can vector time versus ESTIMATED hours of charge needed about ten trillion times more accurate than a nineteen cent Indonesian IC. Your frontal lobes learn. Einstein, said it best: To do things over and over and expect a different outcome is the definitionof insanity. "How low was the battery voltage this morning?" "12.22" "That's lower than yesterday" "Better add another half hour to the timer -- twist it further" This is how you learn and it's a quick process. Anything but difficult. It takes a few samples and you are educated -- let's take an extreme. The batteries are overcharged dramatically, six hours instread of 2. The result? Try NO DAMAGE. Easier than baking a cake. My battery bank? YAWN! A hard night. Hurricane. Batteries are down to 24.2 volts YAWN Twist timer for four hours. Then walk off. That was sooooooooo hard. The 710 amps initial charge of course sags to 130 but time's up charger stops generator burps and the "heart stopping drama" ends. By the time I return to the generator it's cooled down so I shut it off. Yawn. Top Charging merely requires adding a half hour to the timer. Or I could add some mentally challenging drama to the day -- play checkers. 9read What you are saying then is that saturation = Absorption = charge. If you had reviewed my link, you might have acknowledged that my charger is automatic and does exactly what you have described above. There is one exception, the charger uses temp-comp to adjust the Abs/Float Voltage automatically. In that instance, my charger exceeds your description. You will find a graph it the link which shows that while 14.4V may be good enough, that it is not usually correct for charge=absorption=saturation. I do not need to be present to start the charger nor to observe the operation in any way. I can be comfortably away from the system. How is that not automatic? HTH; John
full_mosey 09/07/19 06:39am Tech Issues
RE: Charging ?

When one of my chargers acheives 100% charged in HALF the time as yours then you really ought to take another look. The key is saturated charging. And pnichols is on the right track. One of my chargers analyzes the bulk stage and calculates a time for the Abs stage in a range of 1 to 12 hours. It also calculates the appropriate Abs Voltage based on battery temperature. 14.4 Volts is not always calculated and neither is 4 hours Abs. What exactly is 'saturated' charging and why is that optimal in all circumstances? Why is 14.4V and 4 hours better; better than what? Will YOU take a look at this? HTH; John
full_mosey 09/05/19 09:07am Tech Issues
RE: Charging ?

And HOW does it KNOW when is enough. Like having a shovel that KNOWS how. Deep to dig If that is the big deciding impediment, I believe I have implemented a solution. I have written about it beforehand here. Perhaps you could take a look. HTH; John
full_mosey 09/04/19 06:01pm Tech Issues
RE: Solar Panel

What happens if you blanket an entire panel in a series or parallel array? HTH; John In parallel you will only kill the production of that panel. For 3 panels, one covered you will still have 2/3 production. In parallel each panel contributes separately. Think of three hoses filling a bucket vs series where the three hoses are connected together with a single discharge into the bucket at a higher psi. The flow is limited by the smallest diameter hose in series where in parallel each hose can fill at their own rate. OK, using the hose analogy, if you have three hoses in series and you step on ANY location ALL current stops. HTH; John
full_mosey 08/25/19 05:12pm Truck Campers
RE: Solar Panel

What happens if you blanket an entire panel in a series or parallel array? HTH; John
full_mosey 08/25/19 04:41pm Truck Campers
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