Navitron Renewable Energy and Sustainability Forum

Energy/Electricity Storage and Use/Grid Connection => Off-Grid, Batteries & Inverters => Topic started by: Pord on November 10, 2017, 10:53:50 AM



Title: Setting up Victron controller and monitor
Post by: Pord on November 10, 2017, 10:53:50 AM
I'm currently on a very steep learning curve, setting up a 1kw 24v pv system and would really appreciate some guidance on the settings for my Victron Blue Solar MPPT 100/50 (and ideally the BMV700 monitor).  We have a bank of four Crown CM220s (as recommended by Scruff - Scruff, if you're reading please wade in!).

The BS has 7 presets (pic attached), none of which exactly match the charging rates recommended by Crown, which are: daily charge (absorption) 29.0; equalise 31.0; float 27.0. Scruff, you recommended charging these batteries to 29.6v (with temp compensation).  The BS manual also refers to four phases - bulk, absorption, auto equalisation, float.

How should I translate the above figures into settings for the BS?  Any other settings I should customise?

Deviation from the BS presets appears to require either a Victron USB cable or Bluetooth dongle and app (my preference). Anyone know from experience if that will definitely allow me to enter fully customised settings? I'm pretty certain it does but just looking for reassurance before coughing up £50. The intention is to use the one dongle and switch between the controller and monitor as required. Final long shot, but is the app compatible with a Kindle Fire tablet (I'll contact Victron if necessary)?

(https://s2.postimg.org/a6ob71x45/IMG_20171109_111815807.jpg) (https://postimg.org/image/a6ob71x45/)


Title: Re: Setting up Victron controller and monitor
Post by: billi on November 10, 2017, 12:36:12 PM
Hi Pord

It would surprise me , if Victron would not  supply a method  of modyfy chargeing parameters 

10  years back  when i got my victron inverter , i had to buy a "dongle" to allow my computer  to    change and monitor settings via VE configure software ....


Pos. 4 in your photo   would be  my settings  for FLA traction batteries ...

I personally think , if   water level is watched ,  high absorbtion charge is  a good thing  (mine(PZS) are  charged at 29.8 V and now 14 years old )   and  not too much equalizing charge during the years

cause  the absorbtion charge allows  as well some bubbling in the battery  ( so a small equalizing charge on a sunny basis  ;) ) 

Billi


https://www.victronenergy.com/live/ve.direct:mpptprefs


Title: Re: Setting up Victron controller and monitor
Post by: Iain on November 10, 2017, 04:27:11 PM
Hi
Quote
Anyone know from experience if that will definitely allow me to enter fully customised settings? I'm pretty certain it does but just looking for reassurance before coughing up £50

I have the Bluetooth dongle and it does allow you to customise the settings. I just used the app on my phone.

Iain


Title: Re: Setting up Victron controller and monitor
Post by: eabadger on November 10, 2017, 05:10:56 PM
i used the usb and you can change everything.
be warned if you leave the lead plugged in to the victron but not a pc or the pc goes off, when you reboot the victron it plays dead, no lights on whatsoever!!! you can modify the lead to stop this daft behavior.
also i found out the long hard way the manual is out of date for setting up inverters in paralel mode, ignore the bit about being done by switchs, you have to use another version of ve and set master and slave, on that point i assumed one was master and on all the time the other one called as required, wrong, they both are on all the time.

steve


Title: Re: Setting up Victron controller and monitor
Post by: Pord on November 11, 2017, 11:07:22 AM
Many thanks guys, app downloaded and dongle on the way. I'll be back with more questions about specific settings. One wee step at a time...


Title: Re: Setting up Victron controller and monitor
Post by: Scruff on November 13, 2017, 12:09:29 AM
You might want to fiddle with the fully charged parameters [of the BMV] so it doesn't auto-reset because dusk conditions and PV often cause false positives and throw the SOC way out. I think the only way to do this is set the absorb. target voltage out of bounds because there's no feature to disable it. You can manually reset it using the sync feature. I run my monitor this way and it works much better.

I don't understand why you can get an external temperature sensor for their battery monitor but not their solar charge controller. The integrated one in their mains chargers don't work...well hard to say the charger doesn't work the temperature sense in the face of that is minor.

[EDIT...added text for clarity^]


Title: Re: Setting up Victron controller and monitor
Post by: Pord on November 13, 2017, 05:56:16 PM
Thanks Scruff. I'll have to come back to the forum for guidance on a number of settings, but on the specific issue you mentioned, could it be covered by the following setting (text copied from the online manual)?

Night and day detection
Night/day detection voltage settings can be used to adjust the detection to match the panel configuration. The day detection voltage must be 0.5V higher than the night detection level. The lowest detectable voltage is 11.4V. Set this option to 0 to use the built-in defaults which are: Night = Vpanel<11.4V Day = Vpanel>11.9V).
The default setting is 0 (use built-in default voltages)
Using the 'Delay' periods for day/night changeover avoids the system making an accidental switch when clouds pass over the panels. The valid range is between 0…60 minutes. These delays are disabled by default (0).Absorption time limit (hh:mm)


Also, where would a defined absorption time limit feature in this? Text again from online manual.

Set the absorption time limit. Only available when using a custom charge profile.
Enter the time value in the notation hh:mm, where hours are between 0 and 12; and minutes are between 0 and 59.
The maximum duration of the absorption period is determined by the battery voltage as measured just before the solar charger begins operation each morning


Title: Re: Setting up Victron controller and monitor
Post by: Scruff on November 13, 2017, 07:58:06 PM
No Pord I don't believe it will as that is a setting on the charge controller not the battery monitor. Unless they communicate with the eachother like a TriMetric 2030 does with the SC 2030 this will not resolve the issue. It's merely a load control setting.

I also find it odd that a company with the experience of Victron deem a maximum settable Tail Current time of 50 minutes sufficient to deem a FLA 100% charged. I have found experimentally it can takes 3 days to get from 95% SOC to 100% SOC. I suppose they spend more money on advertising than hardware development.

In anycase I'd verify all results with SG readings until you are happy the system is working as it should. You ought to have no reason to get lower than SG 1.275 p/c after a few days on charge no-load with your brand spankin' new tippy top battery.

Please post your findings I'm curious myself, if the controller is up to the task I'll start using them myself.


Title: Re: Setting up Victron controller and monitor
Post by: Pord on November 14, 2017, 01:37:49 PM
Thanks again Scruff (and for the edit). Your advice on the fully charged parameters will hopefully be implemented via the rest of this post. Ok, deep breath... 

Below I've listed all the Victron Connect app settings on the kit and I would really appreciate being hand-held through setting them up. They are all Victron: BMV700 monitor; Bluesolar 100/50 MPPT charge controller; Phoenix 24/800 inverter. Just as a reminder, we have four 250w 24v panels and four Crown CR220 6v batteries to complete our 24v system.

I've tried to establish as many of these settings myself through advice from this forum and other online resources. Please correct me where I'm wrong. I've also added notes/questions where relevant. Some settings I simply don't know or understand.

BMV700 MONITOR

Battery menu
Capacity - 220Ah (Crown C20 rating)
Charged voltage - either float minus 0.2 (ie 27.2-0.2=27v) or absorption minus 0.3 (ie 29.6-0.3=29.3v)
Tail current - default is 4%
Charged detection time - default is 3 mins
Peukert Exponent - default is 1.25. Online calculators give varying results (from 1.17 to 1.35) depending on which two C values I use
Charge efficiency factor - default is 95%
Time to go averaging period - default is 3 mins

Relay menu
Am I correct in thinking this relates to activating a linked genny? If so, we can ignore.

Alarm menu
Alarm buzzer - on, presumably
Low SOC alarm - does this equal the max desired DOD? 50% is what I aimed for.
Clear Low SOC alarm - presumably a value higher than the one above?
Low Voltage alarm - presumably relates to the entire bank's voltage?
Clear Low Voltage alarm - higher than above?
High Voltage alarm - what should this be?
Clear High Voltage alarm - lower than above?

Display menu
The display can show the following settings:
Main voltage
Current
Power
Consumed Ah
SOC
Time to go

Presumably SOC is critical, which others should be priority?

Misc menu
This appears to be relevant only if a different shunt is being used, which it's not. Ignore?

BLUESOLAR 100/50 MPPT CONTROLLER

Battery menu
Battery voltage - 24v
Max charge current - default is 50A
Use default charge settings - off
Charger - on
Absorption voltage - 29.6v (thanks Scruff)
Absorption time limit - ?
Float voltage - 27.2v (again Scruff)
Equalisation voltage - 31.0v (from Crown)
Auto-equalisation - off (again Scruff)
Temperature Compensation - better on than off?
Temperature Compensation value - 3mv/degC?

Load menu
Options are:
Always off
Batterylife algorithm 1 (manual says a 'self-adapting algorithm')
Conventional algorithm 1 (off when Vbatt <11.10v on when >13.10v)
Ditto 2 (<11.80v  >14v)
Always on
User-defined algorithm 1
Ditto 2

Streetlight menu
Auto control of night lighting. Ignore, unless I'm missing something...?

TX Port Function menu
Options are:
Normal communication
Pulse every 0.01kwh
Light dimming (pwm normal)
Light dimming (pwm inverted)
Virtual Load output

Presumably Normal is fine for Bluetooth/app use.

PHOENIX 24/800 230v INVERTER

Output voltage - 230v
Output frequency - either 50Hz or 60 Hz.
Dynamic cut-off - on or off
Low battery shut down - ?v
Low battery restart and alarm - ?v
Charge detect - ?v
ECO mode wake-up minimum power - ?w
ECO mode search interval - ?s


...and that's all folks! Jeez, I'm away for a lie down. Thank you in advance to anyone generous enough to read this through and respond.










Title: Re: Setting up Victron controller and monitor
Post by: Scruff on November 14, 2017, 03:11:08 PM
BMV700 MONITOR

Battery menu
Capacity - 200Ah Err on the side of caution. They derate in cold and with age...well cold yes mine are as good as new after 4 years moderate duty 6 months a year average.
Charged voltage - absorption if you want auto, once you start to see the glitches in the matrix go manual. so absorption + temp comp +0.1V
Charged detection time - max
Peukert Exponent - 1
Charge efficiency factor - 98%
Time to go averaging period - default is 3 mins

Relay menu
Am I correct in thinking this relates to activating a linked genny?
-You'll find a use for it later.

Alarm menu
Alarm buzzer,
-I delete them with prejudice I prefer silent notifications.

Low SOC alarm 60% give yourself time to see it and change course.
Clear Low SOC alarm - 85%
Low Voltage alarm - might be more accurate might be less depends on the size of the load and meter drift since last sync. 23.8v
Clear Low Voltage alarm - 24.8v
High Voltage alarm - what should this be? 32V
Clear High Voltage alarm - lower than above? 26V

Display menu
The display can show the following settings:
Main voltage
Current
Power
Consumed Ah
SOC
Time to go

Presumably SOC is critical, which others should be priority?

-SOC will drift if you don't reach fully charged every 5 days or so. All of the above. I use powah (watts) the most, followed by SOC with reference to voltage and charger behaviour. Once you get to know your chargers you'll see them hit absorption and that often gives you a reference.

Misc menu
This appears to be relevant only if a different shunt is being used, which it's not. Ignore?
-I guess. I'm not reading your manual... :P

BLUESOLAR 100/50 MPPT CONTROLLER

Battery menu
Battery voltage - 24v
Max charge current - default is 50A
Use default charge settings - off
Charger - on
Absorption voltage - 29.6v (thanks Scruff)
Absorption time limit - 1 week
Float voltage - 27.2v (again Scruff)
Equalisation voltage - 31.0v (from Crown)
-You shouldn't need it. Only if there's a disparity of 0.03 SG between cells or you've brutalised your battery.
Auto-equalisation - off (again Scruff)
Temperature Compensation - better on than off?
-On if it works, uh...I dunno I think they measure the internal temperature of the controller before it starts sweating then turns off rather than measure it's own heat sinks so any changes are unaccounted for. Meh...buy a controller with an external one...and sense terminals.. tomato:
 
Temperature Compensation value - 3mv/degC?
-Yurp.

Load menu
Options are:
Always off
Batterylife algorithm 1 (manual says a 'self-adapting algorithm')
Conventional algorithm 1 (off when Vbatt <11.10v on when >13.10v)
Ditto 2 (<11.80v  >14v)
Always on
User-defined algorithm 1
Ditto 2

-Sounds like low voltage disconnect. 11.9> 14.7 only controls the loads on the LVD terminals so subjective.

Streetlight menu
Auto control of night lighting. Ignore, unless I'm missing something...?
-Ignore unless you have a use for it.

TX Port Function menu
Options are:
Normal communication
Pulse every 0.01kwh
Light dimming (pwm normal)
Light dimming (pwm inverted)
Virtual Load output

Presumably Normal is fine for Bluetooth/app use.

PHOENIX 24/800 230v INVERTER

Output voltage - 230v
Output frequency - either 50Hz or 60 Hz.  50hz
Dynamic cut-off - on or off  ??? On?!?  ???
Low battery shut down - 24.2v (depends on loads, sag and how you want to use it)
Low battery restart and alarm - 24.8v
Charge detect - 26.4v , relevance to an inverter?
ECO mode wake-up minimum power - 30w
ECO mode search interval - 15s


...and that's all folks! Jeez, I'm away for a lie down. Thank you in advance to anyone generous enough to read this through and respond.

-de nada.



Title: Re: Setting up Victron controller and monitor
Post by: offthegridandy on November 14, 2017, 05:20:31 PM
Hi Pord, well you've have been a busy boy and read all the manuals too by the look of it.

I'm loath to comment on many of these settings as I run my batteries rather differently and so far after 15 years have no complaints.  I discharge my batteries down to 22.4V. My batteries are generally receiving input from PV and wind some of the time and I have a genny set up to auto start to support a load of greater than 3 Kw and or run a full charge cycle up to 29.9V.  Our consumption is in the order of 10Kw per day so with no RE input my genny will run every couple of days for around 10 hrs. NB the genny actually ran 6 time in 6 months from April to Sept.  I have my max charge rate set at 100 amp.  This mode of charge/discharge is what fork lift type deep cycle batteries are designed to work on.  FYI my first set of batteries (1000A) were replaced after 13 years.

It is generally  considered that the max charge rate for batteries should be in the order of 10 to 12% of max capacity so in your case 20 to 25 Amps would be the sort of setting for 220AHr battery. I'd start of by trying 1 hr for absorb. On absorb the charge rate should taper off and below  a few amps charge rate I don't worry.  I never worry about SOC, because our batteries are constantly being charged and discharged or used as we say,

You'll note a fair degree of variance from Scruffs settings and mine and as my batteries lasted  well over 10 years I'd argue that neither are right or wrong.  It probably depends on what your battery use or loads will be.  Hope I'm not confusing you.

Good luck.

Andy


Title: Re: Setting up Victron controller and monitor
Post by: Scruff on November 14, 2017, 10:25:21 PM
To be honest Andy my battery has the life of Rielly. I'm undergoing an overhaul to double my generators and loads to accommodate electric refrigeration because I reckon I'm not pushing them and they've more to give.

Regarding the 10% charge rate it's a rule of thumb. I've been using between 2% and 20%.
Clicky (http://www.smartgauge.co.uk/chargesize.html)

Second that, neither are wrong.



Title: Re: Setting up Victron controller and monitor
Post by: Pord on November 15, 2017, 12:57:53 PM
Huge thanks to you both for your advice. Immensely helpful.

Sounds like settings will vary according to circumstances, so it would make sense for me to roughly describe our proposed useage.  We're living rurally on our own land in an offgrid static while we build a house (strawbale and offgrid, but that's another story). We've been here for a year, and expect another 18-24 months before the house is complete.  Estimated power consumption is 650wh daily, which will be fairly consistent through the year. Our 24v system has 1kw panels and 220ah batteries.  Would this alter your choices for settings?

I also had a couple of questions on some of the specific settings discussed earlier:

Scruff, you advised a Peukert exponent of 1. That will disable the Peukert compensation on the battery monitor, is that the intention?

Max charge current - default on the controller is 50A. Based on our circumstances and your advice Andy, should I be setting that to 20-25A (if yes, which?).

On a slightly different but relevant subject, I need to get power to the controller, charger and inverter to use the Bluetooth dongle and customise the settings via the Victron Direct app. Would this involve taking power from the solar panels? Or should I use our portable inverter generator? Presumably the batteries would remain disconnected from the system until all settings are entered? (PS I'm being helped out by an electrician with some of this, so have at least some support on hand).

Thank you. Again...


Title: Re: Setting up Victron controller and monitor
Post by: Scruff on November 15, 2017, 01:07:44 PM
Puekert exponent is an imperical number that only makes sense on discharge-recharge cycling. The battery efficiency is non-linear. When you are deep discharge micro-cycling your battery will live in the efficiency belt naturally; between 65% > 85% SOC where those batteries are 100% efficient at C50. Rather than having a computer compensating and then you not knowing what the damn is going on. I set them 1:1 and compensate for SOC proportional efficiency myself.

Do not connect the PV before the battery. There will be smoke. Fuse the battery appropriately then use that as your power source.

Slower charging is healthier for the battery but takes longer. Faster will shorten it's life but you can factor that as a "cost of doing business".
I wouldn't push over C5.


Title: Re: Setting up Victron controller and monitor
Post by: Pord on November 15, 2017, 01:55:28 PM
Thanks Scruff, makes sense. I like this uber-practical approach.

Just to make sure I understand, when you say not to push over C5 that would equate to setting the controller to a max current charge of 18A, ie 10% of the Crown's C5 rating of 180Ah?



Title: Re: Setting up Victron controller and monitor
Post by: Scruff on November 15, 2017, 03:02:50 PM
C5 = 5 hour charge/discharge

220/5 = 45A

Less is more.
The slower the charge the more complete the charge.
Harder is not faster. Higher current bulk = slower absorption.

It's all subjective.

Set it to max and let the sun decide if you ask me.
If you invest in a mains charger I'd say 30A or 40A with adjustable current. Some would say 20A, they would not be wrong.


Title: Re: Setting up Victron controller and monitor
Post by: Pord on November 15, 2017, 03:45:54 PM
Ok, I'm glad I checked. So it's calculated based on the battery's C20 capacity. If less is more then let's keep it below the max setting.

The panels will deliver 41.7A (1000/24), does that also automatically act as an upper maximum?


Title: Re: Setting up Victron controller and monitor
Post by: Nickel2 on November 15, 2017, 04:34:28 PM
For the purpose of the exercise, (charging a battery from solar panels), the amount of time that the Panels will be producing 100% or 1 kW, for any length of time will not be that great. If the charging is set by the maximum current that you can cram into the battery, this will only be attainable during dry, cold, summer days when the battery has been taken to a low SOC. Once the battery has some juice in it, the terminal voltage will rise, and you will need to raise the charging voltage to insert the same number of amps. To stop the battery from boiling away, most chargers have settable voltage limits.
The next issue arises when you have an inverter connected to the battery. Most inverters specify a maximum input voltage for correct operation. (mine says 20v-30v max). Once my battery reaches a reasonable state of charge, I would need to exceed the maximum operating voltage of the inverter if it was to feed C10 current into the battery.
This, I believe, is where power management comes in. Some of the output from the solar-charger feeds the battery, the rest is used in the household via the inverter.
As the sun goes down, inverter use is minimised and the charger output goes to finishing the top-up of the battery, until float is switched in by the Intelligence of the MPPT charger.
I run 1.14 kW at 24 V, and I'm still learning how to optimise generated power to charge the battery after the night's drain. I'm learning as I go along... :P


Title: Re: Setting up Victron controller and monitor
Post by: Scruff on November 15, 2017, 05:24:42 PM
Most inverters specify a maximum input voltage for correct operation. (mine says 20v-30v max).

A lottov inverter manufacturers make this mistake and compound the problem with over-zealous over-voltage shut-down. 31V is a perfectly natural place for a flooded battery to reside in Winter. Spec your inverter accordingly.

Older Xantrex got it right.


Title: Re: Setting up Victron controller and monitor
Post by: Pord on November 16, 2017, 12:54:57 PM
Thanks both.

Nickel I think I understand your point about inverters, which I crudely interpret as the correct settings will go a long way towards having an efficient system. This is a learning process for me too (effing hard one, scuse my French) and I realised the only way I'll learn is to actually get the stuff and do it (having tried and failed to find a suitably-capable offgrid installer).

So, unless I've not asked all the right questions or have misunderstood advice, I now have the appropriate settings and need to move to the next phase, connecting it all up (with my electrician).

Based on advice, manuals etc, my understanding is that the sequence will be along these lines:

1. connect battery bank (appropriately fused) to controller
2. connect monitor and inverter
3. enter settings in all 3 via bluetooth dongle and app
4. connect panels
5. do not yet connect load to inverter
6. monitor battery SG (2-3 days?), aiming for 1.275 per cell
7. connect load, then rejoice at having power while fretting I've made a basic error and am frying our batteries...

I took SG of the battery cells this morning:

A - 1280/1280/1280
B - 1275/1280/1280
C - 1270/1275/1265
D - 1250/1240/1245v
Ambient temp 7degC

Does this all sound about right?


Title: Re: Setting up Victron controller and monitor
Post by: Nickel2 on November 16, 2017, 01:49:58 PM
Hi Pord, I've never played with wet/flooded lead-acid batteries before, I leave that stuff to those with the relevant experience, plenty of them here! For my purpose the battery is a heavy box with a manual of figures telling me how to treat it nicely to get the best out of it. (vrla/sla/gel etc).
A mantra that I learned from this forum is:  "Batteries do not die, they are killed". (Eleanor?) The guff that goes with the batteries will tell you what the limits are; the knowledgeable folk herein  :genuflect will tell you how to get the best from your set.  
I started off by getting my batteries up to fully-charged, then started adding bits and bobs of load as the days progressed. Most of my loads are the parasitic loads that add-up over the day: PC, router, phone, radio, hall-light etc. Because I only have 120Ah at 24v, I don't use any current-hungry things like the microwave, washing machine, tmbl drir  tomato:, lathe etc.
As it is getting a bit winterish, I get less power into the battery and transfer more loads to the grid, by altering pluggery and socketry.
Every day is a learning day; all of our mistakes are here for you to learn from. :)


Title: Re: Setting up Victron controller and monitor
Post by: Scruff on November 16, 2017, 03:15:23 PM
I understand your point about inverters, which I crudely interpret as the correct settings will go a long way towards having an efficient system.
There's nothing efficient about inverters, that's why that drawing I made a while back didn't have any load on one. I think the salient point that N2 made is most entry-level non programmable inverters aren't suitable for FLA just vrla with their throttled set-points.

(having tried and failed to find a suitably-capable offgrid installer).
:hysteria, you won't find one. Marine electrician would be the closest and even then you're taking your chances.

D - 1250/1240/1245v : needs a charge on it's own or might have an issue.

Once the pack is balanced. discharge it to 50% then recharge it and see if it reaches 1.275.

You won't fry FLA, they're rugged.


Title: Re: Setting up Victron controller and monitor
Post by: Pord on November 16, 2017, 04:49:19 PM
Quote
D - 1250/1240/1245v : needs a charge on it's own or might have an issue.

Before the battery bank is hooked up to the panels, ie do I need to tackle this before going any further? If yes, presumably that would involve a mains trickle charger (we don't have mains power onsite).  By the way, not sure if it has any bearing but it did have SG of 1260/1260/1260 on 7 Nov.

Nickel, the likes of a washing machine are a distant dream at the moment! At this excruciating rate I'll be punching the air if I get to charge my mobile by the light of a solitary LED...



Title: Re: Setting up Victron controller and monitor
Post by: Nickel2 on November 16, 2017, 05:08:29 PM
When you start making power, you won't know what to do with so much of it. The first time I saw 120W I was amazed. I just kept adding more loads. When I saw 450W continuous output I was dead chuffed! The sun went in and it dropped... ...quick panic as the battery volts took a dive, followed by load-shedding back to the grid. I haven't had a summer yet, but I'm making plans all the time of how to distribute, store and use the power according to it's availability. If summer happens next year, I hope to be doing as much as 4 months off-grid.  :P


Title: Re: Setting up Victron controller and monitor
Post by: Scruff on November 16, 2017, 05:37:57 PM
Quote
D - 1250/1240/1245v : needs a charge on it's own or might have an issue.

Before the battery bank is hooked up to the panels, ie do I need to tackle this before going any further? If yes, presumably that would involve a mains trickle charger (we don't have mains power onsite).  By the way, not sure if it has any bearing but it did have SG of 1260/1260/1260 on 7 Nov.

Hmmm..very low. Have you been discharging it or anything?

OK. Here is your perscription.
Put all the batteries in parallel for 2 days. They'll charge eachother. Then wire them in series and jerry rig the solar controller and panels to them and run a full charge. EQ. 50% discharge. Full charge. Idle on charge for 3 days. Retest SG.

Get a truck USB charger and put some reverse lights ona cigarette lighter plug. Phone + light.
Give the air one from me.


Title: Re: Setting up Victron controller and monitor
Post by: Scruff on November 17, 2017, 04:37:41 AM
Are the ingraved codes sequential on the batts?

"If you want to check the year and date your Crown Golf Cart Batteries were made it could be found in two places. The date code is sometimes stamped on the cover near the positive or negative terminal post. Other times the build date is only displayed on a sticker placed on the side of the golf cart battery.

You can gather more info from the stamp than just the date of build. It includes a few more build details, date of manufacture, line it was built on, the shift during that day, and more.


1st digit = Month ( A = January, B = February, C = March, D = etc )

2nd & 3rd digits = Day (01 – 09 = Days 1 – 9, 10 – 31 = Days 10 – 31 )

4th digit = Year

5th Digit = Assembly Line ( 1 – 5, they presently have 5 production lines )

6th Digit = Warranty

7th Digit = Shift Of The Build Day"


Title: Re: Setting up Victron controller and monitor
Post by: Pord on November 17, 2017, 06:24:37 PM
That's the prize, Nickel!

Ahh, you'll recognise an emerging pattern here Scruff - advice is dispensed, questions are generated, issues uncovered, and repeat. The challenge now is to get over the finishing line before either you get tired/bored or I lose the will to live! If we do, that air will be getting a damn good thrashing.

I definitely haven't done anything to the batteries other than store them. They're currently sitting unconnected, cosy in my Solar Shack©. Thanks for the info about the battery codes, really interesting. Each battery is marked as follows:

A - D1117 2L1 0728
B - D1117 2L1 0733
C - D1117 2L1 0727
D - D0417 2L3 0452

So D appears to be from a different batch.

What do you reckon?



Title: Re: Setting up Victron controller and monitor
Post by: Pord on November 20, 2017, 10:10:14 AM
I'm getting desperate to finish this. Would it make more sense to ask a friend to mains charge the battery?


Title: Re: Setting up Victron controller and monitor
Post by: Scruff on November 22, 2017, 12:39:52 AM
These things are never finished. Er yeah boil the lowest see if she comes right.


Title: Re: Setting up Victron controller and monitor
Post by: Pord on November 22, 2017, 10:24:13 AM
Ok thanks, I'll do that.

Might be more accurate to say I'm desperate to get this started...


Title: Re: Setting up Victron controller and monitor
Post by: offthegridandy on November 22, 2017, 04:54:26 PM
Go and lie down for half an hour mate.
Scruff is Scruff
Nickel is Nickel
Desp is Desperate

And your Pord!


Title: Re: Setting up Victron controller and monitor
Post by: Pord on November 22, 2017, 08:58:49 PM
Haha, yes a lie down sounds appealing!  I'll be amazed if I don't develop PTSD after this...