Not quite the 'maker spirit' but perhaps a little more pragmaticI still feel as though this thread was over at "get a small cheap pure sine inverter"
Not quite the 'maker spirit' but perhaps a little more pragmaticI still feel as though this thread was over at "get a small cheap pure sine inverter"
Not quite the 'maker spirit' but perhaps a little more pragmatic
Figure out how to charge (40v packs)more directly off of solar.
Yes, they're sold out right now. I saw them, but didn't buy any right away. Next thing you know they're sold out. Brand new those cost an arm and a leg. If they get these again you better believe I'll grab a dozen.I've been soldering leads to the main pos and neg and charging with a mpt-7210a
There's room enough in the case for a xt60 probably
Battery hookup has some 40v packs for $6 right now. Get a dozen and learn.
Yes, they're sold out right now. I saw them, but didn't buy any right away. Next thing you know they're sold out. Brand new those cost an arm and a leg. If they get these again you better believe I'll grab a dozen.
Let me ask this question another way. If I were working at a construction site that did not have access to power, or a remote site (think something like those Building Alaska shows) and you wanted to charge the Ryobi batteries from solar...how would you do it? I guess the simple answer is use a traditional generator (gasoline, propane, etc...) and an DC/AC inverter to the Ryobi charger? Seems so wrong to not just charge the batteries directly.
Ryobi has one too.I have a makita 18v brushless chainsaw in my camper trailer and 12vdc powered makita charger. Works a treat.
Ryobi has one too.
Ryobi P131 One+ Portable Dual Chemistry Lithium Ion or NiCad Vehicle Charger : Amazon.ca: Tools & Home Improvement
Ryobi P131 One+ Portable Dual Chemistry Lithium Ion or NiCad Vehicle Charger : Amazon.ca: Tools & Home Improvementwww.amazon.ca
Yeesh...It has been great to see all the responses and ideas. I wanted to share what I was trying to do and mention a new product from Ego that might help. First, I ended up buying the Sherpa 100AC Power Bank from GoalZero.
https://www.goalzero.com/shop/sherpa-power-banks-and-accessories/sherpa-100ac-power-bank/
It has a 100-watt AC inverter that I was able use to charge my Ryobi 18v (9 Ah) and 40v (1 Ah) batteries using their respective AC chargers. The Sherpa battery needed at least a 50% charge and good sun for a few hours to make it work. I also had to upgrade to the Nomad 100 Solar Panel.
https://www.goalzero.com/shop/portable-solar-panels/nomad-100-solar-panel/
On a clear sunny day in direct sunlight the maximum I would get out of the Nomad solar panel was 62 watts. Charging my 40v 1Ah battery would push the Sherpa Power Bank inverter to its limit and the fan would run as it would get warm. Ryobi has at least a 7.5 Ah battery now and its charger uses several 100 watts so it would not work with the Sherpa Power Bank. I would have to upgrade to something larger.
Now Ego has their Nexus Power Station which looks interesting.
https://egopowerplus.com/nexus-portable-power-station/
They also have a Solar Panel Charger that says is coming soon.
https://egopowerplus.com/nexus-portable-power-station/
Ego also has a 10 Ah battery out now so you can connect 4 of them to their Power Station. In combination with their Solar Panel Charger, you can charge the Ego batteries directly from solar. There are two issues I see with the Ego Power Station. One, its kind of bulky. I wish they would make it smaller and lighter and easier to move around. Look at the Ryobi Power Station as a comparison.
https://www.ryobitools.com/products/details/40v-1800-watt-power-station
Second, which is a much bigger issue in my opinion is that the inverter on the Ego Power Station cannot be used while its charging. That can be very frustrating especially when charging from the sun. Apparently, the software on the Ego Power Station can be upgraded with a Firmware Update so its possible that they could change this in the future if there is not a hardware issue that would prevent it.
The Ego Power Station is $499, and each 10 Ah batter is $449 so if you got 4 batteries that would be $2,295. It’s getting a bit expensive. Hey everyone needs a hobby right?
Um… I do not believe this would work…Very simple solution get the ryobi 40v battery charger. (not the rapid charger) Cut off the 110v power supply get a
MPPT Boost Solar Panel Battery Regulator Charger Controller 24V-72V $40 on eBay connect it to your solar panel and set the charge controller output to 41.7v connect the power supply cord coming from the ryobi charger to this adustable voltage solar controller output and you will have a Solar Roybi 40v battery charger.
Yeah 24-72 does not mean adjustable output.Very simple solution get the ryobi 40v battery charger. (not the rapid charger) Cut off the 110v power supply get a
MPPT Boost Solar Panel Battery Regulator Charger Controller 24V-72V $40 on eBay connect it to your solar panel and set the charge controller output to 41.7v connect the power supply cord coming from the ryobi charger to this adustable voltage solar controller output and you will have a Solar Roybi 40v battery charger.
I’m charging my 18v Ryobi directly from the sun, I’ll take some pics and tell you how I’m doing it.I hope this has been posted to the correct forum. I am looking for some advice on what it would take to charge the Ryobi 18v and 40v batteries directly from solar. I do not want to create a system with a bank of deep cell batteries, a charge controller, solar, and an AC inverter (yet). I just wanted to learn what it would take to charge the Ryobi batteries directly from solar. I think the 18v battery is the easiest because Ryobi has created an In-Vehicle charger.
18-Volt ONE+ In-Vehicle Dual Chemistry Charger for use with 12V DC Outlet
https://www.homedepot.com/p/RYOBI-1...ger-for-use-with-12V-DC-Outlet-P131/100342149
I currently have the Nomad 20 which is a foldable solar panel form GoalZero.
https://www.goalzero.com/shop/solar-chargers/nomad-20-solar-panel/
The Nomad 20 has a female 12v car adapter which could connect to the car adapter from the Ryobi In-Vehicle Charger. The specs for the solar output port on the Nomad 20 are 14-22V, up to 1.3A (20W max). They also make a Nomad 50 with 14-22V, up to 3.3A (50W max) and a Nomad 100 with 14-22V, up to 8A (100 max). The Nomad panels are also chainable up to 150 watts.
My first question would be is the 20 watts from the Nomad 20 enough to charge the Ryobi 18v 4Ah battery or would it be better to upgrade to the Nomad 50 or 100…I assume more watts from solar is better? It would be nice if I could get a full charge in 4-6 hours of good direct sunlight.
Next, what would it take to charge the Ryobi 40v battery directly from solar? Ryobi does not make an In-Vehicle charger for their 40v battery so we would have to create something ourselves. If I understand correctly I would need at least 40v+ of solar to be able to charge a 40v battery. I think that means hooking up two 24v solar panels in series so that I get a theoretical total of 48v from the solar. How many solar watts would be appropriate to charge a 40v 5-6Ah battery in about 4-6 hours of good direct sunlight?
Then I thought I would need a charge controller to keep the battery healthy and safe from overcharge, but another forum post said that the Ryobi battery has an internal battery management system (BMS).
DIY Ryobi 18V One+ Power Station (very cool project BTW)
https://diysolarforum.com/threads/diy-ryobi-18v-one-power-station.4229/
Is the internal BMS like a charge controller? If so, can I simply connect the output wires from the solar panels directly to the Ryobi 40v battery? Will its internal BMS kept the battery healthy and safe from overcharge and what about electricity flowing backwards? If that works, I guess the only way to tell the current charge status would be to use the built-in charge indicator on the battery? Would it be safer to use an charge controller?
Any thoughts or advice would be greatly appreciated.
Thanks
For that to work, it would have to interface with the BMS in the battery.Theoretically the boost converter that Off Grid Garage Andy just posted in his latest video could do it as long as you’re watching it charge and disconnect it as soon as it is full.