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Author Topic: Grid Hopping  (Read 62779 times)
jonesy
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« Reply #225 on: May 07, 2017, 11:12:29 PM »

I'm disappointed in you Scruff; those isolators don't match. That would drive me nuts.
Simply ruins the whole job for me.  Grin

Wish I had your patience. Nice work.
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Scruff
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« Reply #226 on: June 09, 2017, 05:26:14 PM »

They do match Jonesy, have you not noticed the pattern yet?

It's the installation made of whatever I find cheap/broken/donated.


I'm away in the motor for the month I just popped back for a few days. My brand new ApprenticeVolt Battery Monitor was waiting patiently for my return. I believe I rightly interperated "not sure about it's accuracy" to mean "I don't know how to wire this".

I bought the meter for the shunt. The meter is a bonus.
Let's see if she's any good eh?


Righto wire it as per instructions. Paying particular attention that the shunt sense wires are twisted pair of wholesome CSA and exact same line resistance.




Check the calibration against a known good meter.




Zero



Discharge



Charge



Nothing wrong with that.. extrahappy

Nice comes with an SOC relay too so I can use a CC buck reg to rebulk my 12v system from the 48V in low SOC.

However is this contraption worth 300?
Nope. I can get a better one for far less.

I don't go out of my way to rip on ApprenticeVolt but hey lets see the features your money gets you or lack there of;

Display is too small to read across the room or from any distance. Yet the panel is massive.
Doesn't display Watts.
Auto reset cannot be disabled.
Peukert Exponent cannot be disabled (although it is adjustable).
It doesn't read more than 100% Charge
The 100% Charge auto reset is calibrated to 90% > 95% SOC.
Doesn't do 48V systems.
Reads expected time until discharged but not expected time until charged.
Maximum efficiency is 98%.
6 status leds in 16% SOC increments. ....scale is too broad and let's face it the first three are redundant...it should scale 50% to 100% imo.
Pre-selectable battery names are all called banks. There's no such thing as a battery bank. Cell is singular, battery is plural, bank is pretentious.  tomatosplat


Not that I'm complaining about a free better than Chinese Ah counter. whistlie
Just fundamental design decisions.
I'll let yee know how it road tests these are just my first impressions. Overall I'm actually happy with it because it cost me nothing given I wanted a 50mV 500A shunt anyways.


Meanwhile this USB socket was a 0.13W perma-load.



Switch. Simples. Will it ever return on investment? Not financially, but that's not the point the converter will last longer if it can be isolated, switches are handy and hey I'm building a zero self-consumption system here, why? ...because Winter.


 
  
« Last Edit: June 21, 2017, 02:34:12 AM by Scruff » Logged
Scruff
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« Reply #227 on: June 17, 2017, 01:26:23 PM »


Laaaaa
aaaaaaaadddddies and GGGeeerrrrtlemen!......

Introducing!

Our latest fabrication!...

...an inspirational design driven by the pulse of the times...

...behold...

...our light weight, feature filled...


Boom-Stick-Lite Mk-IITM




Has it got Features?
  • Charges Phones.
  • Charges Itself.*
  • Retina Burning Luminescence.
  • High Temp. Cable Tie Positive Retention (200C rated).
  • Rechargeable.
  • Field Serviceable.
  • Head-Torch.
  • Deployable Work Light.
  • UPS.
  • Auxiliary Battery.
  • Forehead Heater.

*some losses

Protections
  • OverCurrent.
  • OverDischarge.
  • OverCharge.
  • Radiative OverTemp Indicator.
  • Constant Current 1A.
  • Constant Voltage 5V.

Our first round investors also get this Free Expansion Kit!



Our Range Extender & Thermal Management Expanding ModuleTM**


**Always use TMEMTM when operating device for 10mins or longer.
User accepts all liability if disregard is given to operator instruction procedure. This is an attended appliance.
 


Get 'em while they're Hot!!
« Last Edit: June 17, 2017, 02:24:31 PM by Scruff » Logged
biff
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An unpaid Navitron volunteer who lives off-grid.


« Reply #228 on: June 17, 2017, 09:51:23 PM »

Once again, Impressive stuff,Scruff,
                Can I buy one,?  Expensive, ?
     I use a head lite a lot, around the yard. Means I can keep my hands free to do other things.
                                   Biff
                               
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An unpaid Navitron volunteer,who has been living off-grid,powered by wind and solar,each year better than the last one.
jonesy
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« Reply #229 on: June 18, 2017, 10:37:51 PM »

     I use a head lite a lot, around the yard. Means I can keep my hands free to do other things.                        
Whilst Scruff needs to get out more (I'm jealous really) I really don't need to know why you need hands free Biff  signofcross
Soooo, the self charging thing.  Where is the filler for the snake oil. OK,  just realised my  mistake- you didn't include the lead from the one pack back to the other.  You marketing types are good.
Sign me up for 100.  I can make a killing selling these on as a complete kit and you can just be my slave supplier.
Cue laugh at the end of Thriller.
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biff
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« Reply #230 on: June 18, 2017, 11:49:26 PM »

Ah Jonesy,
         You are insinuating that I might stop in the dark from time to time to play my portable full size Grand piano,,  Well rest easy, I gave that up some time ago, As you probably heard, We are over run with Leprechauns , Its damdish the way that they scurry about in the dark, with their heads down and not looking where they are going, They are only 3ft in height but built like brick potty houses,, and they have been known to butt the unsuspecting victims in the groinialial area. Which can be breath taking for the victims,,
  So with the Scruff,s headlight, I could use my two hands and modestly, possibly, deflect the approaching foreheads, I am delighted to be able to clear than one up.
                                                                                                  Biff
                       
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Scruff
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« Reply #231 on: June 19, 2017, 02:32:01 PM »



Another satisfied customer!
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jonesy
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« Reply #232 on: June 19, 2017, 08:51:17 PM »

Lol.
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todthedog
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« Reply #233 on: June 20, 2017, 06:55:38 AM »

Fabulous ! A genuine cracker.
 genuflect
Jonesy Just think of the complications of filling out your French tax return!!!
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jonesy
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« Reply #234 on: June 20, 2017, 10:53:01 PM »

Sweden has made you soft, Tod. You mean further complications.
Did you hear France is going paye? There will be manure everywhere......
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Scruff
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« Reply #235 on: June 21, 2017, 02:29:48 AM »

Scruff needs to get out more
Ne'er  truer word said.


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Scruff
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« Reply #236 on: August 19, 2018, 12:38:31 AM »

Scruff Inc.
ProtoHouse has moved.



12kWh having a rest.
This is just a temporary workspace.
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Scruff
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« Reply #237 on: August 19, 2018, 01:07:12 AM »

I've been rocking this since my last.



The Unsung Heroine of grid hopping. The Bumblebee!

265Wp Solar


150A Alternator
producing 140A instantaneous and 110A continuous (@ 50% DOD service battery).


(power to service battery only shown)

Albright SW80 split charge contactor.
Magnetic latching, manual trigger.



Mains Charger = CC PSU feeding SunSaver MPPT



Because mains chargers are garbage...Victron, Sterling, Mastervolt and many others tried to charge batteries and failed.
I'm currently testing a Ctek for a home-run. Nobody beats MorningStar.

4 yo 3kWh golf cart batts testing out specific gravity 1.28 p/c.

Compressor Fridge. Proportional 12v led lighting. 12V USB + laptop PSUs.

I'm deleting the mollified square waiver inverter I don't use for a MorningStar SureSine I can not use instead.



I also have plans to heatsink an induction hob to my WBS.



Shyte sclicktron SOC meter.



Excellent meters for grown ups.



One Shunt two SOC meters.

Actively cooled, atmospherically vented fridge condensor.

+20mm per side closed cell insulation.

2.5W parasitic load.

Electrical Range: Indefinite.
 ballspin

Lead ain't dead li-ion fanboys!  Tongue
(yee just need to get better chargers)
« Last Edit: August 19, 2018, 04:05:18 AM by Scruff » Logged
Scruff
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« Reply #238 on: August 19, 2018, 01:12:30 AM »

Seriously Victron...you thought putting a B+ on a shunt is a good idea?  facepalm sh*tfan
Almost as good an idea as using UTP cable for anything that needs to be robust.  chocolateteapot

« Last Edit: August 19, 2018, 02:09:29 AM by Scruff » Logged
Scruff
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« Reply #239 on: August 19, 2018, 01:38:45 AM »

Upgraded Fuseblock



Soldered brass studs.




Shunt to Bus


PV/SMPS -> SunSaver MPPT
Changoever Contactor



ELVDC Breaker CU with Smartbank Standard with non-standard 20A Automatic Intelligent Relay (Current limited by naughty self-resetting blade fuse circuit breaker)



Merlin Smartbank



Flyback Diodes & SMPS series diode (to eliminate de-latching issues)




BMV Mod.



because blue lights in a dash-board are about as annoying as pressing 18 buttons to turn the backlight on and 18 more to turn it off again.
Yes it is a 52mm gauge...automotive standard with no switched illumination feed.

Mine has backlit keys. Obviously, sclicktron don't use the products they design.



« Last Edit: August 19, 2018, 02:10:29 AM by Scruff » Logged
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