FINAL Solar update and new LTO battery option announcement
ฝัง
- เผยแพร่เมื่อ 5 มิ.ย. 2024
- Just ANOTHER quick update, before the new solar build video is released to address some questions and concerns and announce a solution to them.
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Can you please do a video regarding setup of node locations in relation to one another for maximum coverage. And maybe so info regarding daisy chaining them to reach a far away location.
So LTO it is! Here in Finland, in my area, the winter temps this winter have been between -30 and -40 degrees Celsius (which is -22℉ to -40℉) for weeks.
Thanks again for this awesome video, and best wishes from a new subscriber!
Sure thing! Thanks for the sub!
Same here in Minnesota... not ideal
For li-ion can heat the battery when below 0°c by using a small heater pad, resistive heater element or a PCB heated bed like a 3D printer heat bed. Seen this done for lifepo battery packs used in below freezing environments.
Also implement a simple battery temp monitor to enable the heater and disable charging until the required temp is reached, some BMS have this feature.
LTO batteries are way better though, much much longer cycle life.
What tha what !!! I was just talking to a friend about using LTO in the hills rather than 18650 and then I get a notification about this very video. Man are you reading my mind
We were talking about another TH-camr from New zealand who used 100 of them for a camper build and how well it works in different temperatures
Where's the link to the Etsy shop? I thought it was supposed to be in the description.
I run an 18650 on a wisblock on my roof in eastern idaho. it is easily 0F or below ... it keeps on ticking. also with the wisblock, I can use the 5v output from a 6,5 or 3w usb charging cord to the board itself and seems to charge even in overcast days.
I am just getting mine set up. Where are you at in Eastern ID? I am over near IF. I was concerned about the batteries with 18650 working.
$445 for a meshtastic node is smoking crack
Welcome to capitalism! It's only cheap if you can afford to order a million units at a time lmao
He does sell just the components & has the files uploaded to printables if you want to DIY to save $
You can save even more money if you source the parts yourself, theres mppt solllar charge controllers for 18650 cells for 50 cents on aliexpress, LTO batteries $3-5 each, fibreglass antenna $24, 10w panel $10, MCU $5? you could build one for $50. That being said the solar charge conttrollers ive found arent designed for LTO , so theres more value in the custom ones made here. However youre going to pay for it. In the end its a solar powered microcontroller. Not an expensive/impossible setup to acheive on your own. I would add a mini wind turbine because in cold climates the sun may not show for a week or more.
Would you like to purchase some crack instead?
Sad to see the chargers are already out of stock. Not being able to charge 18650s for six months out of the year is the one thing impeding my mesh plans.
Glad that there is a solution out there that isn’t sticking a resistive heater in my enclosure though!
Yeah, I was late to the party as well. I wonder if anyone could suggest a charge controller from another source to do the same job?
I am sure some passive ventilation is quite possible for these setups.
A tube poking out the bottom and an upside down "J" up the top should give a bit of airflow. While at the same time keeping it weatherproof.
Also shading the box with the solar panel will help imho.
This is evolving fast. I'd never heard of LTO batteries.
Thanks for the update!
Thank you so much for all the information.... Keep up this fantastic job 💪
Waiting for your DIY solution on this!
Even on days where temps are 10-20f, ive noticed internal temps (bme280) in the node case are well above freezing during sunlight (charging) hours. I paint my cases a dark,matte, camo green and that helps to absorb more heat.
I'm very interested is this relay project using the LTO. Since I live in northern Duluth Minnesota and can get 30 to 40 below at times...I really like the information and quality work you put into your videos...thank you, looking forward to the results of your testing...as soon as I finish this comment, going to subscribe...
Great questions and answers.
Great progress!
Rather than spray painting an enclosure with reflective paint to prevent it from baking in the sun, a far more effective solution would be to mount a shade above the enclosure (the solar panel can be used) with an air gap in between.
Great tip about the LTO batteries. Thanks!
Excited for the LTO build I’m in the northeast so need a cold weather solution
For most locations, there will be little solar charging when the temperature is below 32F. A simpler and probably less expensive solution if this was a concern would be a thermal switch that disconnects the solar panel below 32F. It should be possible to source a bimetallic switch at this temperature but a better solution would be for the WisBlock to add temperature sensing to its charge control capabilities to avoid charging cold Li ion batteries.
Was just about to suggest LTOs to you today
Love your videos, you should do a mo ile unit for the wiseblock, the low power consumption and my 3 modules say there should be a video but one does not exist
I have 10 LTO chargers on the way RIP WALLET
Lmao
Thanks for taking the lead on the revolution lol. These will be sold out by bed time.
Just wanted to say i like the intro and outro you made. I think the outro is short and sweet and especially creative. Don't see that much on TH-cam
Have you heard about the "green power" module? Ive seen some comments on reddit say its recommended for solar builds.
im in Canada. Im in for a half dozen min
Has anyone found a 18650 BMS board that will protect from high heat? With thermocouple
You can look for JEITA compliant lithium ion battery chargers. The JEITA organization outlined safe-handling and operation guidelines for lithium ion batteries including for extreme temps. Some chargers have adopted this standard and provide these features. Such a charger would cut power if the battery temp goes below 0C or above 40-45C (well, it depends, but it cuts power when it gets too hot).
Texas Instruments has multiple charger chips that are JEITA compliant (they usually include the ability to add a thermistor for sensing battery temperature). If you look through their chip selection you could then try to find chargers that use that chip. I haven't had much success searching Google for "JEITA compliant battery charger" so finding the actual chip model number and then searching for chargers that use that chip could yield better results.
Final? Your projects have an end? Mine seem to go on forever with constant tweaks.
I'm in Vegas. I expect to have problems. Currently, I'm going to build a 4 battery solution, so if it's too hot, I don't have to worry about not being able to charge.
I'm not sure if that will work.
Thinking about doing the same thing for Pennsylvania... if I have 4ish 18650s and insulate the enclosure well enough, I might be able to scrape by
What is the discord? Been following the vids but must have missed that
discord.com/invite/AKgpbpJS
Where do you buy these lto batteries?
He should have some on his Etsy shop when he gets more in.
@@The_Comms_Channel Oh. I was hoping for a more direct source heh
@@3nertia Oh, gotcha! That I'm not sure. I believe he has them shipped from overseas, just not sure where.
😊😊👍👍
I want setup a pseudo guerilla network in my city.
Anyone have any tips for hiding my lora setups on public land?
Camo paint/burlap/etc to break up the outline. Get them high in a tree and noone will notice.
Bro is gona make a killing on the etsy
Completely unnecessary. I have a 10 AH lipo cell connected to a waveshare mppt board with a voltaic 5w solar panel and there is zero issues charging below 0F. if you have a large battery the c rate is low enough to charge with no issues.
I'm new to this and am wanting to build my first repeater. You're saying your node functions solely on solar power and doesn't have to be recharged your setup? And you can make it through cold weather and weeks of cloudy days in the winter? Are they lipo batteries or lifepo4?
$445, if these sell others will start making them for the non-tech but money available population :/
ed
-40 is the crossing point between the scales
So the text on screen is correct, and what he is saying is correct
@@st3rox so it is, my brain lied and told me it was 47!
400$ dollars lmao
That's for a pre-built, ready to roll set up. You can do it for a lot cheaper if you make it yourself. The creator provides the 3D printed files for the enclosure with a full build list of everything you need if you want to do it yourself. And THAT's what makes it fun and enjoyable, to make it yourself, and what also make the creator a wonderful fellow.