Ryobi EM480 Riding Mower battery replacement with LiFePO4 Batteries 

why did you buy a separate charger? wouldn't the original power supply charge them just fine?

The last few seconds are hilarious: "...my wife is the one that uses this mower and she was complaining that they run out real quick. The..." (Video ends). LOL! Anyway, from what I understand, only about half the amp hours are usable on lead acid batteries because you're not supposed to run them down below 50%, so 100AH lead acid is really closer to 50AH. On the other hand, lithium Ion and especially LiFePo batteries have no problem going much further down and so you get much more usability out of them. So, replacing a 100AH lead acid set up with a 50AH LiFePo setup would basically be equivalent as far as amp hours go, but the LiFePos would be superior in every other way.

Actually I did reuse the main Anderson connector, that power the motors and drive unit. I added another Anderson connector for charging from the new Charger I got for the Lithium Iron Phosphate from Signature Solar!

Hello, i also have a RM480ex rider mower and battery charging shows only chargin to 39.9 volts. its about 3yrs old? i pulled all batteries all showing 13.0 volts the charger was displaying a red light flashing 2 times pause and then flash 2 times again. any thoughts? thanks

Will the OEM charger charge LiFePO4 batteries?

Great info on the batteries. Need a foll🎉ow-up video to see what connections you made for a new charger.

We have not noticed much lost of traction switching to LIFEPO4 batteries! More power and a much longer running time.

I wouldn’t trust any charger that was not specifically designed for LFP batteries! Overcharging Lithium Iron phosphate is a no no!

....Again....NO LINKS!

Batteries with that low of charge are usually bad. We have had very good luck changing over to Lithium Iron Phosphate batteries, there are right now batteries you can buy from Battery Hook Up for $110 for 12 volt 100 ah LFP, they do need a BMS. I never use any battery now without a BMS. Battery Hook Up sells BMS’s, I personally like Daly’s or JK’s. I’m also waiting for two 12 volt 100ah batteries from Amazon that I will be making a video of the cheapest LFP 12 volt batteries you can buy on Amazon! They probably will be a better deal, then the used batteries from Battery HookUp because they are new and come with a BMS. I really prefer to spend a little bit more on a good BMS, so do consider those batteries from HookUp Up!

I "inherited" a RM480e, and I bought new LiPO4 batteries. I'm missing the part you reference at 3:30 in your video- little wire with little connector - I have to buy another one of those. I have the part number, I think, but it is $70 for that little cable. Do you know what it does and is there a possible cheaper option?

Why didnt you reuse the original cables and Anderson connectors? This is a clean, very oem looking fit. Does the battery gauge still work?

Did the lose of weight effect the traction?

Misc. Parts from Amazon, batteries directly from TimeUSB. There are better prices on 12v 100ah batteries now, but get the standard size not mini.

Where did you get your parts? 😊