Ola,
I use some Suaoki 40W Solar paddle with SunPower mono-crystalline panels since quite some time, and like many other panels it has a raw output of up to 24V.
In the past my only device connected to it was my battery charger which by surprise was able to run with it: For this I simply connected the PV raw output to the 12V input of the charger. Seems like the charger did not take any damage from this until now, but to skip using it it that out of spec and run it more efficient I researched a bit and found other threads in that board and the web suggesting to use a Power Tracking Module.
Because I am not into electric modulation I wanted to find a "more or less" plug and play product: In a case - with warranty - from a commercial brand ...
Couldn't find any. Like it is non existing for backpacking applications.
Seems like it needs to be some spare MPPT Module which comes pre-assembled but needs to get wired for In and Out, which is a basic "mechanical" (not really electrical) task I can do.
Now it was about to find some great Module, the rest like a housing and the connectors I was sure about to be able to find by my own.
Q: So may I ask if you got any experience and want to suggest your solution to get from Raw 24V to finished modulated 12V for max. 50W, and maybe with a buffer between to store energy?
Off course I tried answering that question by my own and found many MPPT modules just by hitting it into the web/ebay/aliexpress, and it seems like there are a ton based on BUCK Converters that might work already, but as far as me as a newbie have read up, BUCK Converters only step down, so every input less than the target 12V would be dropped.
This is something I like to come around with a another Converter principal (a more expensive one I guess) which should have great efficiency - like stepping up also?
Another idea I wanted to have include is some kind of "buffer" - but that seems like a rare idea at the market, because I could only find very few informations of others doing this. One of the few instructions/self-assemble kits I could find used Super Capacitors for this:
https://www.instructables.com/id/The...er-Capacitor-/
LTC3625/LT1784 Solar Powered Super Capacitor Charger with MPPT
Super Capacitor Battery:
I like this idea alot, but the comments below the thread already have stated opinions that the solution is not constructed very great, because some components where used out of spec.
Anyways: A capacitor and LiIon Battery mix to have a small buffer sounds "genius".
Well, and here I ended up for now and am not able to decide for the next step.
I would like a solution that combines the benefits I stumbled over while researching:
- capable of running up to 24V/50W Input for my case, up to 24V/100W would be maybe acceptable as well - I just do not want to get too big because of the weight and size.
- as efficient as possible (step down, step up, MPPT)
- for a perfect "gapless" use of the connected devices I would like to store 10-30Wh by capacitors or batterys, depending on the weight again
- no fancy controls with Touchscreen needed, as long as I can set it with a potentiometer and LC Display readout to my target Output I would be happy:
But it looks like the road goes deeper into the topic and need you to gain enhanced knowledge about this to build your own product - which is a path I would like to skip as far as possibly?
- I will only run a 12V device to charge battery's with it - no USB or other outputs needed!
Q: Can someone help me out of this mace and knows where I can simply order a device like this,
or if there is some instructions I could trust to assemble by myself?
Thanks
Ps.: Please excuse my brevity or non-sens - your language is not native to me, but I try to play with it to get better.
I use some Suaoki 40W Solar paddle with SunPower mono-crystalline panels since quite some time, and like many other panels it has a raw output of up to 24V.
In the past my only device connected to it was my battery charger which by surprise was able to run with it: For this I simply connected the PV raw output to the 12V input of the charger. Seems like the charger did not take any damage from this until now, but to skip using it it that out of spec and run it more efficient I researched a bit and found other threads in that board and the web suggesting to use a Power Tracking Module.
Because I am not into electric modulation I wanted to find a "more or less" plug and play product: In a case - with warranty - from a commercial brand ...
Couldn't find any. Like it is non existing for backpacking applications.
Seems like it needs to be some spare MPPT Module which comes pre-assembled but needs to get wired for In and Out, which is a basic "mechanical" (not really electrical) task I can do.
Now it was about to find some great Module, the rest like a housing and the connectors I was sure about to be able to find by my own.
Q: So may I ask if you got any experience and want to suggest your solution to get from Raw 24V to finished modulated 12V for max. 50W, and maybe with a buffer between to store energy?
Off course I tried answering that question by my own and found many MPPT modules just by hitting it into the web/ebay/aliexpress, and it seems like there are a ton based on BUCK Converters that might work already, but as far as me as a newbie have read up, BUCK Converters only step down, so every input less than the target 12V would be dropped.
This is something I like to come around with a another Converter principal (a more expensive one I guess) which should have great efficiency - like stepping up also?
Another idea I wanted to have include is some kind of "buffer" - but that seems like a rare idea at the market, because I could only find very few informations of others doing this. One of the few instructions/self-assemble kits I could find used Super Capacitors for this:
https://www.instructables.com/id/The...er-Capacitor-/
LTC3625/LT1784 Solar Powered Super Capacitor Charger with MPPT
Super Capacitor Battery:
I like this idea alot, but the comments below the thread already have stated opinions that the solution is not constructed very great, because some components where used out of spec.
Anyways: A capacitor and LiIon Battery mix to have a small buffer sounds "genius".
Well, and here I ended up for now and am not able to decide for the next step.
I would like a solution that combines the benefits I stumbled over while researching:
- capable of running up to 24V/50W Input for my case, up to 24V/100W would be maybe acceptable as well - I just do not want to get too big because of the weight and size.
- as efficient as possible (step down, step up, MPPT)
- for a perfect "gapless" use of the connected devices I would like to store 10-30Wh by capacitors or batterys, depending on the weight again
- no fancy controls with Touchscreen needed, as long as I can set it with a potentiometer and LC Display readout to my target Output I would be happy:
But it looks like the road goes deeper into the topic and need you to gain enhanced knowledge about this to build your own product - which is a path I would like to skip as far as possibly?
- I will only run a 12V device to charge battery's with it - no USB or other outputs needed!
Q: Can someone help me out of this mace and knows where I can simply order a device like this,
or if there is some instructions I could trust to assemble by myself?
Thanks
Ps.: Please excuse my brevity or non-sens - your language is not native to me, but I try to play with it to get better.
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