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  1. #201
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    Default Re: Portable Solar Panels

    Quote Originally Posted by JLK View Post
    Yes, why not, provided you controller can also take it.
    Why not ?

    Because it is not a good idea !

    It mandates a MPPT controller.

    It mandates near identical panels.

    It is way less shade, positioning and fault tolerant.

    There is no measurable advantage.

    -----

    Series is best for high voltage domestic - industrial applications.

    Not small camping systems.
    Cheers

    NAGOF

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  2. #202
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    Default Re: Portable Solar Panels

    Quote Originally Posted by JLK View Post
    Yes, why not, provided you controller can also take it.
    Thanks, was just curious as I have asked other manufactures of these blanket style panels and they said you couldn't connect in series, only parallel due to the internal wiring, didn't really make sense to me though, but thought I would just ask. I have a victron mppt, so it can handle the higher voltage.

  3. #203
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    Default Re: Portable Solar Panels

    Quote Originally Posted by woogs View Post
    Thanks, was just curious as I have asked other manufactures of these blanket style panels and they said you couldn't connect in series, only parallel due to the internal wiring, didn't really make sense to me though, but thought I would just ask. I have a victron mppt, so it can handle the higher voltage.
    Thats good advice, albeit for the wrong reason.
    Cheers

    NAGOF

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  4. #204
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    Default Re: Portable Solar Panels

    Quote Originally Posted by Fluffy View Post
    Thats good advice, albeit for the wrong reason.
    Series helps when your battery is greater than 12v.. mppt wont charge if the voltage from the panels are too low..

  5. #205
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    Default Re: Portable Solar Panels

    I would not connect those portable foldable in series, I doubt if their designers had such application in mind.

    Anyway, the only real reason to run in series for camping (12V systems) is if youhave to place the panels far away.

    At Tsendze camp I put my 6 x 80W glass panels 70m from me. 2x2 in parallel, 3 sets in series. Voc 66V. Conected to a Victron SmartSolar 100/30. This sorts out the voltage drop over that distance.

    Overkill, but I run 2 fridges, 220V 60W fan at night or Electric blanket when nights are chilly.

    And...I have 200Ah the trailer. 240Ah squeezed into a NL Box in the Patrol. Plus 2 small 85Ah loose boxes. All self built LifePO4😇
    Last edited by Dungbeetle; 2024/01/09 at 06:25 AM.
    Don’t blame yourself over past mistakes. It’s like driving down the N1 while looking in the rear view mirror only.

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    Ewiks Caravan Movers now fitted to trailer, lekkerrrr - I should have done that long ago. AND 2.6kW lifepo4 in trailer, 3.1kW lifepo4 in NL box with WRN MPPT/DCtiDF in Patrol, 2x1kW in small packs with MPPC/ DCtoDC as backup in case , all self built, 480W panels Victron MPPT and 220V 25A IP67 charger
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  6. #206
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    Default Re: Portable Solar Panels

    Quote Originally Posted by woogs View Post
    Series helps when your battery is greater than 12v.. mppt wont charge if the voltage from the panels are too low..
    Not so.

    You need to look carefully at what is actually going on.

    I will explain later.

    Off to supper with my kids and grandkids.
    Cheers

    NAGOF

    HAM Callsign - ZS5KAD

    Freedom of speech is useless unless you allow people you don’t like to say things you don’t like………

    If you fly or drive to an anti-Fracking meeting, you have no business being there and you wont get my ear......

  7. #207
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    Default Re: Portable Solar Panels

    Quote Originally Posted by Fluffy View Post
    Not so.

    You need to look carefully at what is actually going on.

    I will explain later.

    Off to supper with my kids and grandkids.
    I would be interested to hear your take on this as based on Victron specs the controller will only start charging the bat once "PV voltage exceed Vbat + 5 V" in this instance if I want to charge my 24v bat I would need in the range of 28 - 29v from the panels at least and that Eiger blanket would not produce that unless I put 2 in series.
    I would prefer 1 panel too be honest so if there is a way getting around that "PV voltage exceed Vbat + 5 V" configuration of the controller I'll be interested to hear what it is. I have only used the controller with higher voltage panels, so I don't actually know what will happen if I use a low voltage panel (maybe it will work?), I'm just going according to the spec.

  8. #208
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    Default Re: Portable Solar Panels

    Quote Originally Posted by woogs View Post
    I would be interested to hear your take on this as based on Victron specs the controller will only start charging the bat once "PV voltage exceed Vbat + 5 V" in this instance if I want to charge my 24v bat I would need in the range of 28 - 29v from the panels at least and that Eiger blanket would not produce that unless I put 2 in series.
    Yes, and Eiger gives the system voltage as 1000V, which is std for most panels.

    I have used Flexipower panels in series and parallel although they say system voltage maximum 25V
    Last edited by JLK; 2024/01/08 at 06:49 PM.
    Johan Kriel

  9. #209
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    Default Re: Portable Solar Panels

    Quote Originally Posted by woogs View Post
    I would be interested to hear your take on this as based on Victron specs the controller will only start charging the bat once "PV voltage exceed Vbat + 5 V" in this instance if I want to charge my 24v bat I would need in the range of 28 - 29v from the panels at least and that Eiger blanket would not produce that unless I put 2 in series.
    I would prefer 1 panel too be honest so if there is a way getting around that "PV voltage exceed Vbat + 5 V" configuration of the controller I'll be interested to hear what it is. I have only used the controller with higher voltage panels, so I don't actually know what will happen if I use a low voltage panel (maybe it will work?), I'm just going according to the spec.
    I was hoping somebody would raise this point so that we can explore it.
    Cheers

    NAGOF

    HAM Callsign - ZS5KAD

    Freedom of speech is useless unless you allow people you don’t like to say things you don’t like………

    If you fly or drive to an anti-Fracking meeting, you have no business being there and you wont get my ear......

  10. #210
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    Default Re: Portable Solar Panels

    Quote Originally Posted by Fluffy View Post
    Why not ?

    Because it is not a good idea !

    It mandates a MPPT controller.

    It mandates near identical panels.

    It is way less shade, positioning and fault tolerant.

    There is no measurable advantage.

    -----

    Series is best for high voltage domestic - industrial applications.

    Not small camping systems.
    Ok, so I am going to use a bypass diode on each panel.
    Johan Kriel

  11. #211
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    Default Re: Portable Solar Panels

    Quote Originally Posted by JLK View Post
    Ok, so I am going to use a bypass diode on each panel.
    Still doesn't help.

    We can discuss in detail if you wish.
    Cheers

    NAGOF

    HAM Callsign - ZS5KAD

    Freedom of speech is useless unless you allow people you don’t like to say things you don’t like………

    If you fly or drive to an anti-Fracking meeting, you have no business being there and you wont get my ear......

  12. #212
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    Default Re: Portable Solar Panels

    Quote Originally Posted by woogs View Post
    It is a bit odd that camp and climb deemed 5A to be enough out of a 200w blanket, 5A is def not enough, I would either ask for an exchange (you might have dud panels) or a refund.
    I tested the Eiger 200w blanket over the past few weeks and used my 2 x 120w glass panels as reference. I have a Victron 75/10 Solar Charge Controller for the Lithium Battery.

    Sorry to say, but not once did the Eiger provide fewer charging amps than the glass panels. As I can only use 10Amps, I got 9,6Amps from the Eiger on numerous occasions. The watts were between 125w and 145w, depending on the voltage input. Very satisfied and money well spent in my opinion.

    Would like to test it on a larger Victron to check if I can get more Amps out of it.
    2019 Pajero Sport 2.4 4x4
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  14. #213
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    Default Portable Solar Panels

    FOMO averted!

    Order just placed for the Eiger 200W Folding Solar Panel.

    Edit: collected in-store at the Bellville branch.

    Click image for larger version. 

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    Last edited by kilimanjaro; 2024/02/20 at 07:46 PM.
    Peter
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  16. #214
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    Default Portable Solar Panels

    Is it acceptable to have these on display in the kitchen?

    Click image for larger version. 

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    Last edited by kilimanjaro; 2024/04/02 at 11:29 AM.
    Peter
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  18. #215
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    Default Re: Portable Solar Panels

    Quote Originally Posted by kilimanjaro View Post
    Is it acceptance to have these on display in the kitchen?

    Click image for larger version. 

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    Also got myself a set from Camp and Climb. Well worth the price! Did a small mod in fitting 2 x Brad Harrison plugs connected to the mppt.

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  20. #216
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    Default Portable Solar Panels

    Quote Originally Posted by SP1971 View Post
    Also got myself a set from Camp and Climb. Well worth the price! Did a small mod in fitting 2 x Brad Harrison plugs connected to the mppt.
    I’m using mine with a NL battery box so ditched the crocodile clips and switched the grey BH plug for a red one.

    P.S. my panels came with a PWM controller, not MPPT.
    Last edited by kilimanjaro; 2024/02/20 at 09:01 PM.
    Peter
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  22. #217
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    Default Re: Portable Solar Panels

    Quote Originally Posted by SP1971 View Post
    Also got myself a set from Camp and Climb. Well worth the price! Did a small mod in fitting 2 x Brad Harrison plugs connected to the mppt.
    I see the set has a controller unit. My outdoor trailer has a smart solar controller already wired. Would it be better to bypass the controller for use with the trailer? Or can it be plugged into the trailer as is?

    Can I get these panels without the controller cheaper elsewhere?

  23. #218
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    Default Re: Portable Solar Panels

    Quote Originally Posted by Bushcourt View Post
    I see the set has a controller unit. My outdoor trailer has a smart solar controller already wired. Would it be better to bypass the controller for use with the trailer? Or can it be plugged into the trailer as is?

    Can I get these panels without the controller cheaper elsewhere?
    Just get it with the controller.

    Even if you dont use it now, you have a standby for when the main one goes belly up InDaBush..
    Cheers

    NAGOF

    HAM Callsign - ZS5KAD

    Freedom of speech is useless unless you allow people you don’t like to say things you don’t like………

    If you fly or drive to an anti-Fracking meeting, you have no business being there and you wont get my ear......

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  25. #219
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    Default Re: Portable Solar Panels

    Wise words!

    Thanks Fluffy.

  26. #220
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    Default Re: Portable Solar Panels

    Can anyone suggest the correct settings for the included PWM solar charge controller? The documentation is very light. There are many YT videos online that all seem to use this universal (?) PWN controller but no-one goes into the specifics.
    Peter
    2018 Hilux DC 2.8 GD-6 4x4 Dakar MT Z43
    2021 RSI SmartCap EVO Sport canopy
    Maxxis Razr AT811 265/65 R17
    Giant Anthem Advanced MTB
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