DIGI CS-Plus 48V 67Ah-Golf Cart Lithium Battery
This is the battery I would recommend now. It has everything you need and is simple. Watch my new video for more details on installation
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Ryobi's $4,000 Riding Lawn Mower comes with stupid lead acid batteries that are destined to fail. If you already bought this mower, the best thing you can do is replace them! With Lithium Batteries!
These DIGI Marker Batteries are actually sold as working for the Ryobi electric riding lawn mower, so they'll support the battery in this scenario unlike some other options out there.
Lithium battery provided by Digi for review.