Two summers ago, I converted my Ryobi Electric Riding Lawnmower from STUPID lead acid batteries to much more sensible Lithium Ion batteries (LiPo). And it worked great! But a lot of you have asked, how is it going 19 months later? Well it's time to get the mower out, so this video shows exactly what happened the very first time I pulled it out from the shed and turned it on. Keep in mind, for the second year, I once again stored it in the shed without power the entire winter long.

See the original video on how to convert your Ryobi Electric Riding lawn mower to Lithium here

Updates: Officially, LiTime reached out and asked me to state that they officially do not support using their batteries for lawn mowers and may not honor their warranty if you do. However, I have also seen them advertising their batteries for this exact purpose. Use them at your own risk, I've linked other brands below as well. Also, if you have Ryobi's RM300e or RM480EX, scroll pass my initial battery recommendations to sections about those mowers.

I've also linked a popular "Single battery" Chins and "Single Battery" LiTime option. These batteries requires additional work to install as it doesn't fit perfectly, but as it's a single battery the wiring is easier and you don't have to worry about balancing.

You probably will not need to do the key fix that I had to do, these randomly fail and that's what happened to me. Only do this if necessary.

Battery options (I used the LiTimes, but these others should work too)
LiTime (on amazon buy the four pack)
LiTime with Bluetooth app monitoring: (on amazon, buy four)
LiTime: (buy the four pack)
Chins (buy four)
Mehrpower (buy four)
Mighty Max (buy four)

Single Chin Battery (requires additional work to install my guide does not cover, but avoids balancing and BMS issues)
Single LiTime Battery (requires additional work to install my guide does not cover, but avoids balancing and BMS issues)

**Note, If you have a Ryobi RM480EX, it's a very different process and space requirements. The general recommendation appears to be this single battery:
DC House
I suggest following this video

**Second Note: If you have Ryobi RM300e 30-inch 48V mower, this battery is recommended but will require some work to make fit

Battery charger
Make sure to set the battery charger to 48v and 10a/8a.
Also: Rather than switching the charger head housing as I did, you can instead break the two plastic tabs inside the Ryobi's charging port, and then the new charger will slide right in with no rewiring required.
Battery balancers (if you have four batteries, I don't discuss this in the video) Litime brand Ecoworth brand Battery monitor if you want one A good cart to hold the heavy batteries so mower doesn't tip A decent Lithium Riding lawnmower

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Josh Hendrickson
200 Loveland Madeira Rd #31
Loveland, OH 45140