Electrickery for camping - Page 62





Page 62 of 63 FirstFirst ... 12 37 52 53 54 55 56 57 58 59 60 61 62 63 LastLast
Results 1,221 to 1,240 of 1241
  1. #1221
    Join Date
    May 2009
    Location
    Hillcrest, Malaysia
    Age
    63
    Posts
    18,553
    Thanked: 5964

    Default Re: Electrickery for camping

    Quote Originally Posted by ekkekan View Post
    Nothing wrong with the setup. With the current of each panel at about 5.5A if you don't want to limit the current the MPPT must be 25A or more if the panels are in ||. If in series you would need MPPTs that can handle 5x open circuit voltage which you can get on the panels. It could be as high as 110V.

    As you intend using the panels for one of the two batteries at a time I would use only 1 MPPT and connect the output via plugs to the battery being charged. Nothing wrong with 2 x MPPT as above it is just a saving of perhaps R2000+ as a 25A MPPT does cost a bit. If you have the MPPTs fixed then 2 would be the only way to go.
    Just out of interest, the MPPT would need to be the same current, doesn't matter if the panels are in series or parallel. The current spec refers to the charger output current, not the input current.

    I wish I could convince people from to converting Watts to V and I unnecessarily and just stay with Watts.

    5 x 100W panels is 500W input which is 42Amps at 12V So ideally one would need 50A chargers. (Think of the case where the one battery is flat and the other is full. The flat one may try and pull all 500W)

    -------------------------

    Just out of interest, as already noted above, I have never seen two MPPT's with their inputs commoned. Just exactly what would happen is unknown and depend of the actual chargers. In any event the chargers would have to be designed to do so and need a communications link between them. Just this last week I did a 10kW system where the MPPT's literature dealt extensively with connecting the batteries, AC input and Loads in parallel between the two system but expressly had the PV's separate.
    Last edited by Fluffy; 2019/08/04 at 11:40 AM.
    Cheers

    ZS5KAD
    3 V8's
    NA TwinTurbo SuperCharger
    A V6 and an inline 4

    The frogs are starting to notice that the water is getting warm but it is already too hot to do anything about it.....

  2. The Following User Says Thank You to Fluffy For This Useful Post:


  3. #1222
    Join Date
    Oct 2013
    Location
    Centurion
    Age
    62
    Posts
    706
    Thanked: 300

    Default Re: Electrickery for camping

    Perhaps one must start with knowing what fridge model and make is to be installed in orfer to calculate the load supplied by the battery for the period without sun.

  4. #1223
    Join Date
    May 2009
    Location
    Hillcrest, Malaysia
    Age
    63
    Posts
    18,553
    Thanked: 5964

    Default Re: Electrickery for camping

    Quote Originally Posted by Paul Smith View Post
    Are lithium batteries somewhat more affordable these days?

    The last time I looked, the prices were astronomical...
    You are correct on both accounts. They are both more affordable and astronomical.

    Worth watching this

    https://youtu.be/7xxqP4Tt71w

    About R10K
    Cheers

    ZS5KAD
    3 V8's
    NA TwinTurbo SuperCharger
    A V6 and an inline 4

    The frogs are starting to notice that the water is getting warm but it is already too hot to do anything about it.....

  5. #1224
    Join Date
    Nov 2008
    Location
    Ellisras
    Age
    56
    Posts
    641
    Thanked: 419

    Default Re: Electrickery for camping

    Drop in replacement for 105.

    Will my existing HcdP DC -DC Mppt charger be compatable?
    2000 Patrol GU 4.2D(onkey) beyond 840 000 km

  6. #1225
    Join Date
    May 2009
    Location
    Hillcrest, Malaysia
    Age
    63
    Posts
    18,553
    Thanked: 5964

    Default Re: Electrickery for camping

    Quote Originally Posted by Dungbeetle View Post
    Drop in replacement for 105.

    Will my existing HcdP DC -DC Mppt charger be compatable?
    My assumption is yes. ?
    Cheers

    ZS5KAD
    3 V8's
    NA TwinTurbo SuperCharger
    A V6 and an inline 4

    The frogs are starting to notice that the water is getting warm but it is already too hot to do anything about it.....

  7. #1226
    Join Date
    Aug 2017
    Location
    Bellville
    Age
    48
    Posts
    124
    Thanked: 85

    Default Re: Electrickery for camping

    Good evening electrickery experts. I need advice please. I have 2 x 100 W solar panels with a solar charge controller permanently fitted on my caravan roof. I also have a loose standing 105 W Solar panel with a solar charge controller that i mostly use to power the fridge in my car. My question is, can I plug the loose standing 105 W panel into the grey brad harris plug fitted on my caravan to increase my available power to 300 W or should i rather just use the power from the panels on the roof ? Thank you for any advice.

  8. #1227
    Join Date
    Oct 2013
    Location
    Centurion
    Age
    62
    Posts
    706
    Thanked: 300

    Default Re: Electrickery for camping

    You can plug the loose panel in the BH on van. If the Caravan does not stand in full sun all day it will boost the charge rate quite a bit. If standing in full sun your battery might just be fully charged earlier unless you use more power than only fridges.

  9. #1228
    Join Date
    Mar 2009
    Location
    Florida
    Age
    67
    Posts
    2,707
    Thanked: 639

    Default Re: Electrickery for camping

    Quote Originally Posted by SP1971 View Post
    Good evening electrickery experts. I need advice please. I have 2 x 100 W solar panels with a solar charge controller permanently fitted on my caravan roof. I also have a loose standing 105 W Solar panel with a solar charge controller that i mostly use to power the fridge in my car. My question is, can I plug the loose standing 105 W panel into the grey brad harris plug fitted on my caravan to increase my available power to 300 W or should i rather just use the power from the panels on the roof ? Thank you for any advice.
    The panels on the roof have separate controller. You will firstly need to check your wiring/setup to see if that grey BH plug is connected to the same controller. If it is then you need to check what the max input Watts are that the controller can handle. Yours would be 305W.

    Also IMHO you should not connect two different controllers to the batteries via the setup you have. Saying this I have isolated my two batteries in the van from each other so that when the need arises I charge each battery separately from two different solar setups. One being a HCdP MK 5 (which has a max 270W input) in the van and the other an Outback unit.

  10. The Following User Says Thank You to TRON For This Useful Post:


  11. #1229
    Join Date
    Mar 2009
    Location
    Florida
    Age
    67
    Posts
    2,707
    Thanked: 639

    Default Re: Electrickery for camping

    Quote Originally Posted by Fluffy View Post
    My personal feeling is that the time has come for people to at least consider Lithium based systems, especially in a new build.

    Look at the offerings from BlueNova. Same format as a standard battery with built in BMS so they are compatible with alternators etc.

    You will save on weight and space and have superior performance. Not only that but it will probably be the last battery you ever buy.

    Get the trailer manufacturer to rather install the battery now and offset the costs against the intended 105AH.
    Fluffy is spot on, especially with a new build. I am considering doing a change to LiFePO for both my Companion and Defender.

  12. The Following User Says Thank You to TRON For This Useful Post:


  13. #1230
    Join Date
    May 2009
    Location
    Hillcrest, Malaysia
    Age
    63
    Posts
    18,553
    Thanked: 5964

    Default Re: Electrickery for camping

    Quote Originally Posted by SP1971 View Post
    Good evening electrickery experts. I need advice please. I have 2 x 100 W solar panels with a solar charge controller permanently fitted on my caravan roof. I also have a loose standing 105 W Solar panel with a solar charge controller that i mostly use to power the fridge in my car. My question is, can I plug the loose standing 105 W panel into the grey brad harris plug fitted on my caravan to increase my available power to 300 W or should i rather just use the power from the panels on the roof ? Thank you for any advice.
    Depends. We need a lot more information.

    Panel types and configuration.

    Solar charge controller type.

    Why would you need to or want to do this ?
    Cheers

    ZS5KAD
    3 V8's
    NA TwinTurbo SuperCharger
    A V6 and an inline 4

    The frogs are starting to notice that the water is getting warm but it is already too hot to do anything about it.....

  14. #1231
    Join Date
    Aug 2017
    Location
    Bellville
    Age
    48
    Posts
    124
    Thanked: 85

    Default Re: Electrickery for camping

    Quote Originally Posted by Fluffy View Post
    Depends. We need a lot more information.

    Panel types and configuration.

    Solar charge controller type.

    Why would you need to or want to do this ?
    Good morning Fluffy. Thank you for the reply. I will send more info asap. Its just for peace of mind should the caravan maybe stand in the shade then i can at least move the 105 W panel around to have max sun. Currently i have a 90 L NL Fridge and a few LED Lights so im sure the 200 W will be fine. But with my luck in the bush...lol

  15. #1232
    Join Date
    Apr 2009
    Location
    Pretoria
    Age
    39
    Posts
    2,925
    Thanked: 201

    Default Re: Electrickery for camping

    anyone have experience with the flexible panels?
    Wondering if I can mount them to the roof rack while driving, not sure if the flapping/vibrations will damage them over time?


    https://www.bushpower.co.za/product/...flex-panel-kit

    https://flexopower.co.za/products/mo...19505395269689

  16. #1233
    Join Date
    Mar 2011
    Location
    Walker Bay
    Age
    76
    Posts
    9,062
    Thanked: 1017

    Default Re: Electrickery for camping

    I don't think that is a good idea. Plenty of vibration on the rack. I have Flexopowers and would not mount them there. If I recall they are not waterproof.

    See this:
    https://flexopower.co.za/blogs/news/...e-a-slow-death


    Quote Originally Posted by D-tox View Post
    anyone have experience with the flexible panels?
    Wondering if I can mount them to the roof rack while driving, not sure if the flapping/vibrations will damage them over time?


    za/product/flexpower-tacoma-120w-semi-flex-panel-kit

    https://flexopower.co.za/products/mo...19505395269689
    Last edited by Paul Dold; 2019/08/08 at 09:49 AM.

    “Africa changes you forever, like nowhere on earth. Once you have been there, you will never be the same." - Ernest Hemingway

  17. #1234
    Join Date
    Apr 2012
    Location
    Brackenfell
    Age
    56
    Posts
    132
    Thanked: 7

    Default Re: Electrickery for camping

    I have a 200ah battery with a Victron Guage. This morning when we started packing up the Victron gave me a reading of 77% capacity left while my other gauge gave me a 12.2V reading. According to my very limited knowledge, 12.2v should be around 50% capacity. I don't understand why this difference. Is this correct?

  18. #1235
    Join Date
    Nov 2013
    Location
    PE & North Africa
    Posts
    558
    Thanked: 329

    Default Re: Electrickery for camping

    Quote Originally Posted by DieselDonkie View Post
    I have a 200ah battery with a Victron Guage. This morning when we started packing up the Victron gave me a reading of 77% capacity left while my other gauge gave me a 12.2V reading. According to my very limited knowledge, 12.2v should be around 50% capacity. I don't understand why this difference. Is this correct?
    Not sure why, but when last did you Synchronize the Victron BVM Monitor?
    2008 Fortuner 3.0 D-4D 4x4 "Sushi the Tuna"
    2018 Baobab 4 - B1543 "Nala"


    Bacon fact #16 - Bacon is Healthier than Crystal Meth!




  19. #1236
    Join Date
    May 2009
    Location
    Hillcrest, Malaysia
    Age
    63
    Posts
    18,553
    Thanked: 5964

    Default Re: Electrickery for camping

    Quote Originally Posted by Grumbles View Post
    Not sure why, but when last did you Synchronize the Victron BVM Monitor?
    So that you keep old Peukert happy.
    Cheers

    ZS5KAD
    3 V8's
    NA TwinTurbo SuperCharger
    A V6 and an inline 4

    The frogs are starting to notice that the water is getting warm but it is already too hot to do anything about it.....

  20. The Following User Says Thank You to Fluffy For This Useful Post:


  21. #1237
    Join Date
    Nov 2008
    Location
    Ellisras
    Age
    56
    Posts
    641
    Thanked: 419

    Default Re: Electrickery for camping

    Is there anybody on the Forum that repair repairable chargers, various makes
    I mean actually dismantle find fault and repair, not exchange....
    2000 Patrol GU 4.2D(onkey) beyond 840 000 km

  22. #1238
    Join Date
    Apr 2012
    Location
    Brackenfell
    Age
    56
    Posts
    132
    Thanked: 7

    Default Re: Electrickery for camping

    Quote Originally Posted by Grumbles View Post
    Not sure why, but when last did you Synchronize the Victron BVM Monitor?
    Never done that saw that it picked up the 200ah battery will check this evening

    thanks for feedback

  23. #1239
    Join Date
    Oct 2009
    Location
    Stellenbosch
    Age
    69
    Posts
    3,953
    Thanked: 497

    Default Re: Electrickery for camping

    From what I've seen, that monitor synchronizes itself every time it gets the chance to load to full capacity.
    Eggie.

    What this country needs more and more, are more unemployed politicians.
    - apology to Edward Langley.

  24. The Following 3 Users Say Thank You to Eggie For This Useful Post:


  25. #1240
    Join Date
    Nov 2013
    Location
    PE & North Africa
    Posts
    558
    Thanked: 329

    Default Re: Electrickery for camping

    Quote Originally Posted by Eggie View Post
    From what I've seen, that monitor synchronizes itself every time it gets the chance to load to full capacity.
    On the App, do you then need to select "Batt starts Synchronized" as seen in the pic?? Don't have the manuals with me now.

    What I do is fully charge them and manually Sync before each trip.

    @ DieselDonkey, if I remember correctly, the default battery capacity of the monitor is 200Ah.
    Attached Images Attached Images  
    2008 Fortuner 3.0 D-4D 4x4 "Sushi the Tuna"
    2018 Baobab 4 - B1543 "Nala"


    Bacon fact #16 - Bacon is Healthier than Crystal Meth!




Page 62 of 63 FirstFirst ... 12 37 52 53 54 55 56 57 58 59 60 61 62 63 LastLast

Similar Threads

  1. Electrickery
    By Maréchal in forum Land Rover
    Replies: 1
    Last Post: 2012/08/06, 09:04 AM
  2. Disco 3 electrickery fundi
    By Will F in forum Land Rover
    Replies: 3
    Last Post: 2012/05/16, 08:51 PM
  3. 24v electrickery, help needed
    By ian adams in forum Land Rover
    Replies: 1
    Last Post: 2011/08/15, 09:57 AM
  4. Electrickery vs Mechanical Failure
    By Estee in forum Land Rover
    Replies: 77
    Last Post: 2010/11/24, 04:02 PM
  5. Relays, fuses and other electrickery for my fan setup???
    By Barto in forum Vehicle & Technical Chat - General
    Replies: 9
    Last Post: 2008/07/22, 11:16 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •