The Ryobi ZT540e is a powerful machine, but its original Absorbed Glass Mat (AGM) battery system limits its true potential, and owners often find themselves with far less riding time than they would like. The solution is theoretically very simple: a larger capacity battery with a higher output. In practice, (however) finding the right set-up, compatible hardware, and the knowledge to properly install a worthwhile kit can be quite a bit more difficult.
Enter the brand new Epoch Batteries LiFePO4 battery kit, a Ryobi Zero-Turn Mower Battery Upgrade delivering improved performance, unbeatable longevity, lighter overall weight and consistent power. This is an easy recommendation from us if you have one of the compatible Ryobi riding mowers.
For this exact installation we used Epoch Batteries 51.2V, 60Ah LiFePO4 Bundle on a Ryobi ZT540e Zero-Turn Mower. Here’s how you can achieve this transformation, the game-changing benefits, and where to get your kit – **SPOILERS, we sell these kits wit all the components you need to get a full installation.**
The 60Ah bundle we recommend from Epoch uses two 30Ah LiFePO4 batteries wired in parallel to provide 51.2V and maximum current delivery. These high-quality lithium cells will ensure you get the absolute most from your mower. Your Lithium powered mower will also be lighter once you’ve completed your battery swap, since Lithium batteries are lighter than lead acid batteries. Here’s how we get started with a Ryobi zero-turn mower battery upgrade.
Follow these critical steps for a successful LiFePO4 conversion.
The first job is removing the heavy, old AGM batteries. They are the single greatest source of unnecessary weight on the mower.
The LiFePO4 units are designed in the GC2-style (common golf cart size) but are vastly lighter. This is a huge benefit, but securing them is crucial to withstand mowing vibrations.
The single Epoch system simplifies power delivery, but accessory wiring requires attention:
The Epoch upgrade does more than replace batteries—it fundamentally improves your electric zero-turn mower’s performance profile.
The AGM factory batteries are only estimated for 300-500 cycles. If you’ve had your mower for a while, and charge it every week, you may have already hit 100s of cycles. The LiFePO4 Batteries are rated for over 1000 cycles and come with an 11 Year Warranty. Batteries of this quality might even outlast your mower!
The old AGM factory battery has voltage issues, where the output sags under load. The new Lithium batteries consistently provide full voltage, meaning you can full output from your mower for every second of charge in the battery.
We’ve received complaints about the OEM monitor being unreliable in regards to charge accuracy, thankfully the new Epoch setup comes with it’s own proprietary and reliable State-of-Charge monitor with Bluetooth functionality.
Lithium batteries are universally lighter than their Lead-Acid counterparts, in the case of these ones, it’s about 60% lighter overall.
The Epoch Battery 51.2V, 60Ah LiFePO4 Battery Bundle is a specilized package for your Ryobi zero-turn mower battery upgrade. As an Authorized Epoch Dealer, BEST Battery offers expert support and installation services, as well as the full 11-Year Warranty, and the best possible service.
If you’re looking to get a local installation done, we perform these installations at our shop in Wildwood FL; but we also ship these battery packages nation-wide!
Get your DIY package here on our site by filling out a form and request a quote.
Don’t settle for yesterday’s battery tech. Upgrade your Ryobi ZT540e today and experience the future of electric mowing.
Swing on by and check out our booth (November 29th, 2025), we’ll be showing off the new Eco Batteries, LED lighting set-ups, Golf Cart accessories and more…
