Ryobi RM480e Electric Riding Mower with LiFePo4 - 3000 Wh - more than 2500 Charge Cycles
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- Опубликовано: 8 сен 2024
- Using 60 Ah Canbat LiFePo4 batteries to replace the original 75 Ah AGM.
Canbat 60 Ah LiFePo4 Batteries Specifications: www.canbat.com...
Leoch 75 Ah AGM Batteries Specifications: www.leoch.us/p...
Leoch 100 Ah AGM Batteries: www.leoch.us/p...
NOCO GX4820 Battery Charger: no.co/gx4820
Ammeter 48V: In USA - www.amazon.com...
In Canada www.amazon.ca/...
This is how the mower should have been made. Good work sir!
Ryobi knows they made a stinker with lead acid. Why don’t they help their customers to convert?
Thanks for the video. After five years my Ryobi 480e would only mow maybe 20 minutes. Found one of the four batteries was dead. I upgraded with the same batteries and meter. I couldn’t be happier with the performance. Now mow my 1/2 acres and only use 25% of capacity. Even mowed twice before recharging an still showed 49% capacity. The original battery charger works well for charging cutting off lower than the max recommend charge voltage for LifeP04 batteries.
Thank you Ken for this video. I really want to buy one of these Ryobi riding mowers, but read about poor battery performance and the cost of OEM type batteries. Great to see someone re-power with something better. Great job!
Pick on up used with battery's dead, payed 200 for it replaced batteries $$ but works great.
Thanks Ken, Please do a how to video as a follow-up. The thousands of Ryobi mower owners will thank you.
Also, do you know if the original charger would work for the LiFePo4 batteries, or would the updated charger be needed?
Thanks so much Ken. I’ve ordered 4x new LI Batteries for mine. I’ve seen the generic battery installation videos, which are helpful. I’m very much looking forward to seeing your change over video when you go from AGM to L. Thanks again, all the way from Tasmania, Australia.
Great video, as others have mentioned, we need that how to video. Going on 3 seasons and my batteries are a shell of what they were.
Appreciate it! My original batteries are junked out too. Sometimes only 30 minutes.
Not to many guys, like Ken, knowing Volts, Amps, Wattage and the nature of different batteries. I really love this video and want to say: Ken, thank you very much for answering my question!
Starting this process with my Ryobi 54" zero turn after a little more than a year of use. I was planning on doing it but I was hoping on getting a few years anyway. Ordered the batteries and a charger today. I'm going to try and find that battery meter though. Good addition, Thanks for the video!
I also have a 54” zero turn and I’m very interested to convert from lead acid to lithium. I would be interested in any information you can share. Thank you!
@@gs1100ed - I bought 4 x 12V 100AH LiFePo Chins batteries from Amazon. They pretty much bolt in, uses the original cables.
Got a LiFePo battery charger also from Amazon.
The biggest problem is that the BMS in the batteries would shut down when you click the ignition key on. Tripped the inrush current. I had to wire a precharge resistor with a switch to control that inrush. Easier to do than explain. Will Prowse on YT has good info on precharge resistors.
I did replace the battery monitor with the one from Amazon.
If you need more info just let me know.
Now - have you figured out how to get the mower deck not to clog up every time you mow? That is my biggest complaint.
KEN! WE'RE ALL WAITING ANXIOUSLY FOR YOUR HOW TO VIDEO! HAHA! PLEASE! THE RYOBI COMMUNITY WILL THANK YOU!
Thanks Kim this Hass to be the most informative video on this Ryobi ride mode
This is exactly what I want to do for my RM480e riding lawnmower, but it unfortunately it appears that the "how to" video he mentions near the end never got uploaded to RUclips. Ken, if you read this PLEASE upload that other video even if it isn't very "polished"!
Please make the video of how to thanks
Your work is appreciated. Will you release a followup how to video?
Thanks
Love to see a install video
super informative, thank you!
Thank you for your video. I just switched out my batteries for lifepo4 ones. Could you explain how you connected the new meter? I bought the exact same one you have, but I can't figure out how to connect it. Thanks!
Thanks Ken for this info. I am converting my 30 inch Ryobi riding mover to lithium. I have a charger for the LiFePo4 batteries (48v 10amp as recommended for the batteries). I plan to buy the Plug you used for the charger but my question is the charger and plug have only the red and black wires, but there are 3 pin. Is the third pin unused? One more thing, I'm using the same amp meter as you and installed as instructed, however the percent used shows zero???
I did solve the meter reading and now shows the correct percent of battery.
Did you work out the cable issue? 3 down to 2. I was going to swap the plug over, however my new Invicta Lithium charger is 2. Probably just get an electrician to help me out on this one.
How do you charge them? Please post an update video on this setup, thanks!
Where is the conversion video? This is awesome!
Good stuff. Thank you.
do you have pictures of how you have it connected to the battery?
Great video. Do you know how much amps draw the rig uses as just a lawn tractor (mower deck removed)? Does the drive motor have any high start up surge requirement?
Thanks for posting Ken. Looks like a great setup.
Couple of follow up questions
A) Have you noticed the mower handling differently with reduced weight?
B) How are you planning on handling cell balancing?
I had the same question as you about B) :D Just bought used Ryobi then I can't compare about A), since it had come with bad batteries. 2 are already replaced by Lifepo4, now waiting the 2 others. Personnally for balancing I bring a wire from each pole voltage to the back 0v 12v 24v 36v and 48v. This way, I'm able to verify each battery, especially needed since I will have mixed battery 80AH to 100AH Lifepo4 and now mixed acid and lifepo4. Then I can corrected them from the back without dismantle batteries again by those wires. About charging, I will put my progammable voltage cutter on the highest voltage battery programmed probably to 14 volts. Then I will not hit the cutoff of those batteries at near full charge.
Switched my 54"to LifePo (4 x 12V batteries). I charged each one individually initially. After that, just charge them in a series string. Each battery has it's own BMS, so I don't think further balancing is necessary.
The reduced weight does make a difference. Less traction. Side hills are a little more challenging. In normal mostly flat mowing no issues, and the reduced weight gives you even more running time.
@sracer42 did you have any issue with over amping the bms on your batteries? I just installed the 100ahr litime lifepo4s and eveytime I turn it on it shuts off. Do you need inrush current limiter or are you running one? Thanks
@@kwill2009 - Yes, I did have that problem. I solved it by installing a switch and a precharge resistor between battery + terminal and the load side of the main contactor. I believe I used a 200 ohm 50 watt resistor and a toggle switch from amazon.
Startup procedure is turn on the toggle to precharge the motor control circuits, wait 5 to 10 seconds, then twist the run key. Works fine, just have to do some wiring. If you wanted to be proper you could fuse the wire feeding the precharge circuit.
@sracer42 would you be able to post a video showing how you wired all that in? I have an idea based on your description but your electrical/battery knowledge exceeds mine so any instructional aid would help.
Thanks for your informative video and I am very much looking forward to your how to follow up. Presently have the zero turn and just received my 48 volt 96ah LiFePo4 battery, with special hi power LFP charger and will be installing it this week. Have ordered the gauge kit but Amazon only had the 350 amp. The old batteries did fade after 2 years in this Texas heat and LFP will handle the heat a lot better than lead acid and lithium ion, and a lot safer too. Did hook up the original blue wire? Thanks again.
Hi Ken, I wonder when you will be posting the second video? I would like to replace my lead-acid batteries with Lithium batteries as well.
Add me to that list!
Have anyone check out the pricing on the canbat batteries. 650.00 for the 60ah . I think I should have bought a EGO
What specific manufacturer spec should I check for a bank of batteries to handle the 30 amp draw you measured?
Ken, Would you please explain how you wired the new Camway Battery Monitor? Thanks.
Nice work!
I really hope you are still planning on showing the conversion
thx, next video of how to...please:-)
How is this holding up after 2 years?
Will you turn on the blades this video literally make my phone vibrate
DId you have to balance the 4 batteries in parallel before setting them up in series?
Hi Ken, did you consider Valence LiFePo4 batteries?
Finally somebody has done it! I have wanted to do this since I got my ryobi zero turn. Do you charge them individually or you have a 48v lifepo4 charger.
I would like to know the same thing
How did you charge the new battery? Can you send a link to get the new charger. Thanks
Are you saying the new ammeter doesn't give you accurate % reading with LiFePo4?
Sir, can you please share the video of the install and charger ?
What? Are you claiming that cars with AGM batteries should not drive in winter Times?
Can you post the video on how to do this?
So to convert my RM480e to this it would run me about $2500 from batteries and charger, did I calculate that correctly?
Is there any way i can call you about this? Im trying to do the same thing and i have some questions for you
i have the same ryobi only problems 3 months old
Great video ! have a question , I have same zero turn but I have the 75ah battery and if one battery is bad can replace that one bad battery with a 100ah battery ? will it still charge ? thanks Steve
You just need to match the voltage of each battery so they are all the same and add up to your 48 volts. The amp Hr rating can be looked at as a fuel tank capacity. The higher the Amp/Hr rating the bigger the fuel tank. Generally the increase in Amp/Hr rating also means an increase in the physical size of a battery because more plates are used to get the extra capacity so you need to make sure you have the room.
Did you pick the Canbat batteries because of their exact size as the originals ? I have 4 acres and would like more than 60 AH, so I'm looking for 100AH batteries
Try Alberta Lithium batteries - their 100 AH 12v is the same size.
Can you still use the Ryobi charging system with the LiFe phosphate batteries?
I would think you have about 10 K invested in your lawnmower, please let us know
Thanks for the video, Ken. Question for you: did you run into any problems connecting 4 of these in series? Do you charge them in series, or with a 4x charger?
I did the same with 100 LiFePo4 batteries. Make sure all 4 are same voltage before connecting. You will need to adjust the bottom brackets for battery size difference. Also, I use a 48v lithium charger which works great. I used the original charger's plug and connected to the lithium charger. Only connection the negative and positive terminals and not using the neutral. Works great. You can also order a lithium charger with a three terminals.
Please post an instruction video of this. You will be famous.
@@asharak68kbelgarion46 hi mate, can you elaborate on this? the top wire in the triangle plug is the one you didn't use? Correct?
@@johndarcey I didn't use the green grounding wire. The lithium battery charger should be black to black and red to white connecting the charger and original charger cable. Hoped that helped.
@@asharak68kbelgarion46 thanks mate. Yeah, that is my plan. Just needed a test pilot. Cheers!
How is your mower holding up, i want to switch to the lifepo4 batteries so i called ryobi and they told me switching would not work it would harm the mower.
Hey, thanks for posting this! Can you please provide more details on your setup? I suppose you need 4 batteries to hit 48V. Did you just replace the batteries one-for-one with the existing wiring? Looks like you're using the existing charger -- can you leave the charger plugged in overnight? Looking forward to your upcoming build video.
I replaced all 4 batteries with 60 Ah Canbat LiFePo4 batteries. These batteries can handle a large current draw with no ill effects. I did chance my charge to a NOCO G4820 charger but, I did that prior to the lithium. Although I was told there would not be a need to change the charger the NOCO G4820 has a preprogrammed charge option for lithium.
@@kenthoman3068 Great! It looks like there's an LI-ION setting on that charger -- do you use that setting for LiFePO4?
@@clownbaby420 Yes, ith NOCO G4820 charges at 58.4 V @ 20A for lithium and LiFePo4. It is exactly what was recommended by Canbat for the batteries.
@@kenthoman3068 Is there any downside to charging at lower input amperage? I'd like to just stick it on an outdoor 120V circuit that I'm not comfortable using at 20A sustained.
@@clownbaby420 The output is 20 A it works on a 120 V circuit @ 100 W or 8 A AC
Why does everyone talk about all sorts of circuit changes for charging? The LiFePO4 batteries I'm looking at have a BMS built in. Why couldn't you then use the stock charger?
ruclips.net/video/In03oc8oC4I/видео.html that video explains what a BMS does. The rest of the explanation is that AGM have a higher charging voltage . You will damage the lifepo4 batteries if you use the charge profile for an agm battery.
Useless video! Not enough details and you don't answer anyone's questions. Why bother?
agree