I'm thinking they're working on it. I've noticed a trend with Ryobi that they aren't always the first with a particular product, but they will eventually release something and it'll have a feature or two that the competitors don't have. In this case, I'm really hoping because I love my big 6-port charger, but was bummed that I can't even use the built in USB port unless it's plugged in.
Your videos are awesome! I have a modest collection of ryobi batteries that I've collected for camping, and I've always felt i haven't been using them to their full potential. Plus no way of charging them out in the field for continuous use. Until now, thanks man your time and effort and sharing your knowledge is truly appreciated!
Glad to see I'm not the only one who uses Ryobi tools heavily while camping. Chain saw and recip saw for firewood, flashlight and area light for lighting, the radio for tunes and cell phone charging, the dual-purpose pump for filling air mattresses and bike tires and the fan for hot summer nights!
This is a fantastic project! Thank you for sharing. You know how you can tell that Ryobi doesn't care about what might actually be useful for their tool owners? A simple 18v battery port to 120v ac power cord. Voltage stepping / regulation could all be in the 18v connector side, bam, you could your 18v shopvac for as long as you need while near an outlet.
Glad to find this video. We have HART, RYOBI AND DEWALT batteries and were talking about making some of these to run our laptops off grid on our property. Very detailed video. Thunbs Up
Very cool. Expensive though, even done yourself. Still, this is something I'd definitely be willing to purchase if ryobi ever came decided to produce it.
This is the thing we want ryobi to make. I've watched this video at least 4 times since you released it. Any update on this with the new clips? Great job!!
I've been hoping Ryobi would make one of these for ages. They finally did, and it only uses one 18v battery. There's one that uses 4 batteries, but it onlythe 40v ones. Sadly, neither of them can also charge batteries or jump a car.
it's preety simple get a 40V capable dc inverter (it'll have only a positive and negative input) from there it's a simple 2 batteries in series (connected together positive from one battery is output the negative off that battery is connected to the positive of another and the negative of that battery is output) do this 4 times for a total of 8 batteries then it's just a matter of having all 4 positive lines connected together and all 4 negative lines together this is your 4 parallel batteries in parallel increase capacity batteries in series increase volage. once youve joined your batteries together you simply connect them to the pos and negetive terminals on the inverter.
i think the most helpful test of all your items was the 1500 watt space heater. i am a Ryobi fan and have almost every tool they make. i'm also a former Home Depot employee and i have the exact same heater you used. the critical question for all battery powered items is how long will the power source run the item? seventeen minutes of total run time for a 1500 watt space heater shows the extreme limitations of all small size battery power generators. most household appliances are going to be in the 1000-1500 watt range so you can see how a small power unit would be inadequate for any type of emergency dependency. what this kind of unit COULD do very effectively would be to run LED lighting. a 100 watt (incandescent equivalent) LED bulb only draws about 22 watts. that means you could easily run ten such bulbs and only take up 220 watts of power which would not be too taxing for your small power unit. the problem with ALL "battery power electric sources" is that you CANNOT CHEAT PHYSICS!! until some kind of "super battery" is invented, battery power for EVERYTHING - cars, houses, appliances - will have significant limitations.
Boy you keep doing it better! What's wrong with Ryobi? Youd think that a big corporation with all those engineers would of been ahead of some guy at his house. Lol. Keep doing what you're doing. Maybe they will get the hint.
I would LOVE if they would come out with a charger that would charge all 6 batteries simultaneously, instead of one at a time. Maybe a quick charger feature as well. Since they’ve upped their game on the batteries, the outputs, etc, lets work on the inputs. Thanks for what you do to drive them Sir. If you make a charger like this, please let me know.
Announced today, Ryobi 18v 1800 Watt Power Station. No pricing mentioned but it will be able to use up to 8 batteries and is supposed to be available in Summer 2023. Yours is probably way cheaper than the Ryobi one though lol
For each pair of batteries in series there should be a fuse and blocking diode. The blocking diode will prevent the flow of energy between the batteries in parallel which will increase efficiency and save your batteries.
This Dude Is A 10 On Being A Engineer, there's a least 10 types of technology hes put into this. I Admire intelligence like this. Appreciate you sharing, Admire your video & im gonna look at some more to see if I need or should Subscribe. Stay ENCOURAGED 😜 With A Smile 😁... 9:51
Chris, has anyone attempted to build a large size powerwall... let's say 15 or 20 kilowatts built with only Ryobi Batteries? Either 18v or 40v? How many batteries would we need? I would love to see it done.... I think that would be great publicity for Ryobi!
I was looking at the Ryobi 40 volt portable lantern inverter but it seems to not have a recharge capabuility; now that is something they should make. I don't need the big 4 battery 1800 watt generator.
Chris, one thing I have never seen is the reverse of your power hacks--a Ryobi AC to DC adapter. So you could run stationary One+ devices by plugging them into AC instead of using up batteries. That need comes up every so often, especially with power hungry devices. Seems like there would be more to it than simply converting 120V AC to 20V DC. Something you could tackle in a future video?
Thanks!, I have thought about it, but I think it is harder than we think. Some devices can take 10A at 18V. I did see that Hitachi makes one: www.lowes.com/pd/Metabo-HPT-was-Hitachi-Power-Tools-MultiVolt-36-Volt-4-Amp-Hour-Lithium-Power-Tool-Battery-Adapter-Kit-Charger-Included/1000623987 . Maybe we could adapt that to Ryobi? It does 18 and 36V tools.
Another good video. I am interested in charging all at once or maybe with relays either with a wall plug or solar. Have you figured out the charging parameters? Thanks for giving me inspiration.
I'm not sure how this is possible? I don't see a wH rating for the 20V/6Ah Dewalt battery. Best case would be 20V*6Ah=120Wh. If 4 batteries are hooked up in series, that would give you a Max of 480Wh. A 1500W Heater would only run 19minutes (assuming no inverter loss which is unlikely). At high loads, most tools batteries I've tested never meet their Wh ratings. I would use a kill-a-watt meter to make sure you are actually drawing 1500W.
@@LaCatHTF The flex batteries are 20V/6A or 60V/2A (same number of Wh). I looked quickly and didn't see the video. It appears that the Dewalt is also a modified -Sine wave inverter, not pure-sine. Still pretty nice if you own Dewalt tools!
This question may have been asked already, but can you put together the info/plans for a 1000w pure sine wave system using 4 4ah Ryobi 18v batteries? It would certainly be light weight and portable Love your videos!
Dude, i guess great minds do think alike. I bought a bluetti. Its ok for small things, but I kept looking at my Ryobi batteries thinking, there's gotta be a way of using these. Im a MECP certified installer, who used to work for Best buy and circuit city, also worked for Sea Vee boat, doing electrical install for Marine. My question is how did you wire them? Series, parallel or what combo of that. Are you feeding the full 18 volts into the inverter? I know most car audio stuff loves 14 volts, but any higher than that and you can run into some expensive problems. Love the project. I have a 2006 Caravan I'm setting up as a camper/ bug out van, I just got a bad feeling and don't know if to expect WW 3, Civil war 2, War of the Worlds 1 or the great tribulation..ya dig. May go all out and rap all the electronics in copper tape to shield them from EMPs, as a type of faraday cage. You've got a new subscriber brother. Cheers and see ya on the other side.
This project is 2S4P. I wired two 18V batteries in series to get 36V. Then I wired these in parallel for extra watt capabilities. The inverter is a 36V unit that maps to the voltage range of the batteries perfectly. I always put fully charged batteries in together. If you put different charge levels batteries in, you could have serious problems. You can use blocking diodes if you want to do that. Check out my 40V charger hack to see how.
Don't know much about electricity. I assume 8 x 4ah Milwaukee batteries could be used in this project using the same inverter? Amazon sells plastic battery mount connectors with wire connections - so I would have to make the connectors you made for your Ryobi. They are not cheap but they are convenient.
I don't have any Miwaukee batteries. Do they have a BMS in the battery or in the tool? You want to make sure the batteries are protected. If they are 18V batteries, you should be able to put two in series and then use the 36V inverter
How were the batteries wired? Parallel or series? This is a really great video but if you went in-depth in how the batteries and inverter was wired it would have been even better.
no, I just charge them in external chargers. I did hack a 40V charger to both serially charge and run and inverter: th-cam.com/video/p4xW9f1ohlw/w-d-xo.html
@@SerendipitySue oh ok yes I've been watching your videos bc I just found you on TH-cam and man I'm impressed with your work and hacks very awsome ideas. I'm really surprised Ryobi hasn't persued you to work for them but I'm getting into solar and power boxes and solar power boxes bc I want to expand my knowledge and wiring skills and id like to later when me and my wife buy our house id like to wire our house for just solar.
I’m aware this is an old video, Just curious, so you hooked the 18v 4 ah batteries, in paires to make 36v 4ah… then you did the same to make 36v 8 ah, and finally connected them to make 36v 16 ah? This is awesome! I actually get mixed with parallel connections and series but hopefully you understand what I’m asking… jejejje
If you added more 18v ryobi batteries onto this setup, will the amp overload and kill the inverter? If yes, how do you know how many batteries to add? If no, is there a limit of batteries should be added?
not a good idea to mix battery sizes, They all need to be at the same voltage when you hook then up (I always put them in fully charged). You want similar size batteries so that they share the load equally
You can actually get 3000 watts out of this set-up when the batteries are fully charged. The voltage drops as you consume energy. At some point it will no longer be able to supply enough power. The easiest thing would be to add another 2 batteries. ie. make it a 2S5P set up. The more batteries the better... it makes each one work less.
That would be fantastic to have the ability to hold 10 batteries. Use 4 to 10 batteries depending in your application and desired run time. 18v x 9ah=162wh x 10 batteries 1.62kwh!!! I am really hoping milwaukee makes an 18v power station like that. They have the mx fuel version which would be easy to adapt.
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You would have thought Ryobi would have figured this out on their own. What a miss on their part. Good work brother.
I'm thinking they're working on it. I've noticed a trend with Ryobi that they aren't always the first with a particular product, but they will eventually release something and it'll have a feature or two that the competitors don't have. In this case, I'm really hoping because I love my big 6-port charger, but was bummed that I can't even use the built in USB port unless it's plugged in.
Chris' next project: Ryobi powered house. (Painted lime green of course).
Your videos are awesome! I have a modest collection of ryobi batteries that I've collected for camping, and I've always felt i haven't been using them to their full potential. Plus no way of charging them out in the field for continuous use. Until now, thanks man your time and effort and sharing your knowledge is truly appreciated!
Glad to see I'm not the only one who uses Ryobi tools heavily while camping. Chain saw and recip saw for firewood, flashlight and area light for lighting, the radio for tunes and cell phone charging, the dual-purpose pump for filling air mattresses and bike tires and the fan for hot summer nights!
i would love to be able to daisy chain my 40 ryobi batteries together to power my house!
Chris, I love this idea! Thanks for making it and sharing the plans!
but he did stay how much volt inverter is if 12V,24,36,48V Inverter
I'm right there with you so keep working on getting Ryobi to bring us out the product
After watching this video about a dozen times I finally broke down and built one of my own. Excellent Idea Chris!!! Thanks! :^)
This is a fantastic project! Thank you for sharing.
You know how you can tell that Ryobi doesn't care about what might actually be useful for their tool owners? A simple 18v battery port to 120v ac power cord. Voltage stepping / regulation could all be in the 18v connector side, bam, you could your 18v shopvac for as long as you need while near an outlet.
Awesome! I am a daily Van Lifer and DIY who owns Ryobi’s up market brand Milwaukee. You alone are beating them at their game 🎈
Glad to find this video. We have HART, RYOBI AND DEWALT batteries and were talking about making some of these to run our laptops off grid on our property. Very detailed video. Thunbs Up
Ryobi needs to produce one like this ASAP!!!
Very cool. Expensive though, even done yourself. Still, this is something I'd definitely be willing to purchase if ryobi ever came decided to produce it.
Ryobi recently released an 18 volt 300 watt inverter, and it sells for $129.00
@@BadfingerFan but uses just one battery, we need more!!!
you sir, make this stuff look so easy... innovative. I love it, keep it up sir!
I love this project. Thank you for spending the time to set it up and share.
Good stuff!!! Even got the paint color nailed !!!CHEERS from Canada
This is the thing we want ryobi to make. I've watched this video at least 4 times since you released it. Any update on this with the new clips?
Great job!!
Awesome
You make some awsome projects, and i see you are true to the brand. That dedication. Just found your channel think ill subscribe.
They came out with the big 40v power bank but I still want the 40v -18v adapter
AWESOME BUILD! thanks for the video. I have 6 x 4Ah and 6 x 3Ah and idk well over a dozen other mixed types
very cool. wish I had skills like that!
Thank You for passing us that Knowledge!!
I can use this to power my battery charger!
Seriously though, pretty cool idea
I've been hoping Ryobi would make one of these for ages. They finally did, and it only uses one 18v battery. There's one that uses 4 batteries, but it onlythe 40v ones.
Sadly, neither of them can also charge batteries or jump a car.
and you can’t pass thru charge either :(
Ryobi should just hire you
Clever
Awesome work dude! Love Shadow too!
Great job on all your projects keeping them coming. You inspire all of us thanks.
Nice work. Always like watching your videos.
Very cool. Thanks for sharing!
Amazing! Absolutely amazing
That was fantastic! Love how you explain it so well!
Chris, great work. I would like to build one of these. It would be great if you could draw up a wiring diagram that us old timers could use. Thank you
it's preety simple get a 40V capable dc inverter (it'll have only a positive and negative input) from there it's a simple 2 batteries in series (connected together positive from one battery is output the negative off that battery is connected to the positive of another and the negative of that battery is output) do this 4 times for a total of 8 batteries then it's just a matter of having all 4 positive lines connected together and all 4 negative lines together this is your 4 parallel batteries in parallel increase capacity batteries in series increase volage. once youve joined your batteries together you simply connect them to the pos and negetive terminals on the inverter.
Add this to the new 40v power station! 8 18v to replace the 4 40v
Wow that's bonkers awesome 👍
Brilliant 👏 you sir are simply amazing 👏
i think the most helpful test of all your items was the 1500 watt space heater. i am a Ryobi fan and have almost every tool they make. i'm also a former Home Depot employee and i have the exact same heater you used. the critical question for all battery powered items is how long will the power source run the item? seventeen minutes of total run time for a 1500 watt space heater shows the extreme limitations of all small size battery power generators. most household appliances are going to be in the 1000-1500 watt range so you can see how a small power unit would be inadequate for any type of emergency dependency. what this kind of unit COULD do very effectively would be to run LED lighting. a 100 watt (incandescent equivalent) LED bulb only draws about 22 watts. that means you could easily run ten such bulbs and only take up 220 watts of power which would not be too taxing for your small power unit. the problem with ALL "battery power electric sources" is that you CANNOT CHEAT PHYSICS!! until some kind of "super battery" is invented, battery power for EVERYTHING - cars, houses, appliances - will have significant limitations.
I agree would love to see my Milwaukee supercharger turned into a power station using solar.
Love your videos Chris!
This is too cool!! Great job
Well done!!!
OMG.....You are the Electronic Genuis on TH-cam
Too bad the one Ryobi just released doesn't work that well! Cool Video!!
Well done!
They way you connect the batteries reminds me of the tool they use to milk cows
yes "milking" the power out of the batteries :-)
Boy you keep doing it better! What's wrong with Ryobi? Youd think that a big corporation with all those engineers would of been ahead of some guy at his house. Lol. Keep doing what you're doing. Maybe they will get the hint.
Awesome 👍😎
This is so cool! Too bad they only have a 40V power station now, want the 18V one
you beat me to this, i was in the middle of building this.
Damn dude money maker
Brilliant! BTW...2 pack of 18V 4.0 Ah batteries for $79 at Homedepot.
This is awesome, thanks for sharing!
Damn genius
So good
I would LOVE if they would come out with a charger that would charge all 6 batteries simultaneously, instead of one at a time. Maybe a quick charger feature as well. Since they’ve upped their game on the batteries, the outputs, etc, lets work on the inputs. Thanks for what you do to drive them Sir. If you make a charger like this, please let me know.
Nice Build.
Be sure to use batteries that are almost equal in volts and amp hours. Thanks.
Announced today, Ryobi 18v 1800 Watt Power Station. No pricing mentioned but it will be able to use up to 8 batteries and is supposed to be available in Summer 2023. Yours is probably way cheaper than the Ryobi one though lol
For each pair of batteries in series there should be a fuse and blocking diode. The blocking diode will prevent the flow of energy between the batteries in parallel which will increase efficiency and save your batteries.
I have a more recent video that shows the pros/cons of using blocking diodes ( th-cam.com/video/dqF27lWg6I4/w-d-xo.html )
This Dude Is A 10 On Being A Engineer, there's a least 10 types of technology hes put into this.
I Admire intelligence like this.
Appreciate you sharing, Admire your video & im gonna look at some more to see if I need or should Subscribe.
Stay ENCOURAGED 😜 With A Smile 😁... 9:51
Chris, has anyone attempted to build a large size powerwall... let's say 15 or 20 kilowatts built with only Ryobi Batteries? Either 18v or 40v? How many batteries would we need? I would love to see it done.... I think that would be great publicity for Ryobi!
You are amazing wow.
Please can You do a 40 volt power station? Thank you for sharing your wisdom.
I kinda did one: th-cam.com/video/p4xW9f1ohlw/w-d-xo.html
I was looking at the Ryobi 40 volt portable lantern inverter but it seems to not have a recharge capabuility; now that is something they should make. I don't need the big 4 battery 1800 watt generator.
Thanks for sharing! 👍
Chris, one thing I have never seen is the reverse of your power hacks--a Ryobi AC to DC adapter. So you could run stationary One+ devices by plugging them into AC instead of using up batteries. That need comes up every so often, especially with power hungry devices. Seems like there would be more to it than simply converting 120V AC to 20V DC. Something you could tackle in a future video?
Thanks!, I have thought about it, but I think it is harder than we think. Some devices can take 10A at 18V. I did see that Hitachi makes one: www.lowes.com/pd/Metabo-HPT-was-Hitachi-Power-Tools-MultiVolt-36-Volt-4-Amp-Hour-Lithium-Power-Tool-Battery-Adapter-Kit-Charger-Included/1000623987 . Maybe we could adapt that to Ryobi? It does 18 and 36V tools.
Will the Jupiter 5000 inverter work for this project
Alot of your hobby chargers have place for a thermistor if thats all the ryobi use its a possibility.
I have the dewalt and with a line conditioner, you can get a cleaner sine wave
Very cool! I wish I could buy one of these from you! Have you ever thought of an Etsy store?
Nice work, it's got me stuffed why people call these "battery powered generators"
They're not generating power, they're converting stored electricity.......
Color me impressed
Gj!
should you put a BMS controller on the batteries to protect the batteries?
Each battery has a BMS built in
Is there a way to connect solar to keep the b?atteries charged up
These work only on roybi because its have internal bms for low volt protected?
Sir how do you come up with 2600w it doesn’t sound right to me
Hi Chris, another great project, I am going to build lol. Have you figured out the charging yet? Thanks again!!
I think your inverter is better than their 800 dollar unit
If I get the model without the remote, than I dont need the on off switch?
very cool!
Another good video. I am interested in charging all at once or maybe with relays either with a wall plug or solar. Have you figured out the charging parameters? Thanks for giving me inspiration.
I have started testing the Genasun 8A 36V solar charger ( amzn.to/3ti0ynH )
Great work! But the dewalt power station actually runs a 1500 watt heater for 33 minutes with four 6amp hour batteries 👍🏽
I'm not sure how this is possible? I don't see a wH rating for the 20V/6Ah Dewalt battery. Best case would be 20V*6Ah=120Wh. If 4 batteries are hooked up in series, that would give you a Max of 480Wh. A 1500W Heater would only run 19minutes (assuming no inverter loss which is unlikely). At high loads, most tools batteries I've tested never meet their Wh ratings. I would use a kill-a-watt meter to make sure you are actually drawing 1500W.
@@SerendipitySue well they are actually 6 amp hour flex volt. And there’s a video of a guy running it on you TH-cam. Search it 👍🏽
@@LaCatHTF The flex batteries are 20V/6A or 60V/2A (same number of Wh). I looked quickly and didn't see the video. It appears that the Dewalt is also a modified -Sine wave inverter, not pure-sine. Still pretty nice if you own Dewalt tools!
Ryobi power wall next
This question may have been asked already, but can you put together the info/plans for a 1000w pure sine wave system using 4 4ah Ryobi 18v batteries? It would certainly be light weight and portable
Love your videos!
So it can't run a table saw?
I want a 3d printer now
Dude, i guess great minds do think alike. I bought a bluetti. Its ok for small things, but I kept looking at my Ryobi batteries thinking, there's gotta be a way of using these. Im a MECP certified installer, who used to work for Best buy and circuit city, also worked for Sea Vee boat, doing electrical install for Marine. My question is how did you wire them? Series, parallel or what combo of that. Are you feeding the full 18 volts into the inverter? I know most car audio stuff loves 14 volts, but any higher than that and you can run into some expensive problems. Love the project. I have a 2006 Caravan I'm setting up as a camper/ bug out van, I just got a bad feeling and don't know if to expect WW 3, Civil war 2, War of the Worlds 1 or the great tribulation..ya dig. May go all out and rap all the electronics in copper tape to shield them from EMPs, as a type of faraday cage. You've got a new subscriber brother. Cheers and see ya on the other side.
This project is 2S4P. I wired two 18V batteries in series to get 36V. Then I wired these in parallel for extra watt capabilities. The inverter is a 36V unit that maps to the voltage range of the batteries perfectly. I always put fully charged batteries in together. If you put different charge levels batteries in, you could have serious problems. You can use blocking diodes if you want to do that. Check out my 40V charger hack to see how.
I see. Thank you so much for the technical info. Cheers.
Don't know much about electricity. I assume 8 x 4ah Milwaukee batteries could be used in this project using the same inverter? Amazon sells plastic battery mount connectors with wire connections - so I would have to make the connectors you made for your Ryobi. They are not cheap but they are convenient.
I don't have any Miwaukee batteries. Do they have a BMS in the battery or in the tool? You want to make sure the batteries are protected. If they are 18V batteries, you should be able to put two in series and then use the 36V inverter
How were the batteries wired? Parallel or series? This is a really great video but if you went in-depth in how the batteries and inverter was wired it would have been even better.
2S4P configuration to get 36V
@@SerendipitySue thank you
Awesome build. So did you put a charging port to charge all batteri a at same time ?
no, I just charge them in external chargers. I did hack a 40V charger to both serially charge and run and inverter: th-cam.com/video/p4xW9f1ohlw/w-d-xo.html
@@SerendipitySue oh ok yes I've been watching your videos bc I just found you on TH-cam and man I'm impressed with your work and hacks very awsome ideas. I'm really surprised Ryobi hasn't persued you to work for them but I'm getting into solar and power boxes and solar power boxes bc I want to expand my knowledge and wiring skills and id like to later when me and my wife buy our house id like to wire our house for just solar.
looks pretty sweet, if made little bigger for a charger below the inverter?
I hacked the 40V charger into a power station: th-cam.com/video/p4xW9f1ohlw/w-d-xo.html
Love it! But where do I get Ryobi green paint!
I used Rust-Oleum painter's touch 2X ultra cover paint + primer KEY LIME GLOSS ( amzn.to/38v7SGz )
Was just wondering if you've done any more designs with the 18 volt power station turning it into a solar generator?
Yes, several. Check out my channel playlisty
I’m aware this is an old video, Just curious, so you hooked the 18v 4 ah batteries, in paires to make 36v 4ah… then you did the same to make 36v 8 ah, and finally connected them to make 36v 16 ah? This is awesome! I actually get mixed with parallel connections and series but hopefully you understand what I’m asking… jejejje
yes
Hi Chris! have you upgraded the 2600W Powerstation to charge the batteries at the same time?
no, sorry... just been using it
No step by step?
how much volt is that inverter is 12V ,24V,36V,48V INVERTER YOU HAVE MANY I ASKED NICE BUILD
It's a 36V... all the stuff I used is in the video description
If you added more 18v ryobi batteries onto this setup, will the amp overload and kill the inverter? If yes, how do you know how many batteries to add? If no, is there a limit of batteries should be added?
what 3D printers are those, also do you have the specs on those custom battery connectors you made?
I used Prusa printers, the 3D models I used are specified in the video description
Forgot to ask. Can you mix ah battery sizes. IE some 4 ah with some 9 ah etc.
not a good idea to mix battery sizes, They all need to be at the same voltage when you hook then up (I always put them in fully charged). You want similar size batteries so that they share the load equally
Good job Chris! I think I might make one. What would you do to get the full 3000 watts?
You can actually get 3000 watts out of this set-up when the batteries are fully charged. The voltage drops as you consume energy. At some point it will no longer be able to supply enough power. The easiest thing would be to add another 2 batteries. ie. make it a 2S5P set up. The more batteries the better... it makes each one work less.
That would be fantastic to have the ability to hold 10 batteries. Use 4 to 10 batteries depending in your application and desired run time. 18v x 9ah=162wh x 10 batteries 1.62kwh!!! I am really hoping milwaukee makes an 18v power station like that. They have the mx fuel version which would be easy to adapt.