Simple Ryobi RM480e Battery Replacement in 12 Minutes – Single 48v Lithium w/ Ryobi Stock Charger!

Описание: 8/28/25: New version of this video showing dual charger (stock/LiFePO4) configuration:    • Simple Ryobi RM480e Battery Replacement in...  
Following the simple steps below, we were easily able to convert our dying electric riding lawnmower into one which:
Required no modifications to the factory wiring of our Ryobi mower
Mows our 1.25 acre yard over 2x before we charge it again (at around 30%)
No longer needs to be plugged in when not in use
Replaces 4 lead acid batteries with a single lithium battery protected by a 3 year warranty
Has an advanced Bluetooth battery management system that protects our investment

STEPS: (Similar for 48v Zero Turn mowers such at ZT480)
0:00 INTRODUCTION
0:25 OPEN BATTERY ACCESS PANEL
0:57 DISCONNECT BATTERY
1:29 REMOVE MAIN BATTERY BOLT
1:59 REMOVE BACK COVER
2:18 REMOVE BATTERY TRAY BOLTS
2:54 DISCONNECT CHARGER LOCKOUT WIRE
3:29 SLIDE OUT BATTERY TRAY
5:06 DISCONNECT TERMINALS AND REMOVE BATTERIES
6:28 VACUUM OUT MOWER AND PREPARE IT FOR REASSEMBLY
7:01 PLACE BATTERY ON TRAY AND CONNECT TERMINALS
7:21 RECONNECT CHARGER LOCKOUT CABLE
7:48 SECURE BATTERY TO TRAY USING LARGE ZIP-TIES
8:03 ZIP-TIE 2X4 SPACER TO TRAY
8:27 SLIDE BATTERY TRAY INTO MOWER HOUSING
8:51 BOLT DOWN BATTERY TRAY
9:07 CHECK VOLTAGE AND CONNECT NEW BATTERY
9:32 CHECK VOLTAGE AT CHARGING PORT
9:45 CONNECT TO BATTERY USING BLUETOOTH APP
10:00 PLUG-IN CHARGER AND BRING BATTERY TO 100%
10:47 UNPLUG MOWER AND TEST THAT ALL IS WORKING
11:51 CLOSE UP THE BACK PANEL AND YOU ARE DONE!
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Battery Options
DCHouse 100AH Battery (if using Ryobi stock charger): https://amzn.to/4d2749i
DCHouse 100AH Battery (includes charger): https://amzn.to/3ROzom8
DCHouse 100AH Battery (premium "metal case" model): https://amzn.to/44UwjYI
DCHouse 48v LiFePO4 Charger (standalone): https://amzn.to/464k6kP

The 50AH battery is also an option if you have under 1 acre:
DCHouse 50AH Battery (includes charger): https://amzn.to/3GM1EDB
DCHouse 50AH Battery: https://amzn.to/4m81YMX

Materials Used
36" Zip Ties: https://amzn.to/4lz2i6B
Klein Zip-Tie Tightener: https://amzn.to/4iMzIfU
Two milk crates to hold battery after you pull it out: https://amzn.to/3RKPI7n
Stock Ryobi OP48RM Charger: https://tinyurl.com/2h3tds37

Tools Used
Dewalt Impact Driver: https://amzn.to/4iRbMIq
Socket Adapter: https://amzn.to/4k1LSCL
10, 12, 13 MM sockets: https://amzn.to/3YwygqT
12MM wrench: https://amzn.to/44wyz7j
Phillips Screwdriver: https://amzn.to/4d2zb8t
T30 Torx for four back screws: https://amzn.to/44kX1tX
Digital Multi-meter: https://amzn.to/3EFjwiS

Our Choice of Charger
We used the stock charger (Ryobi OP48RM) for the following reasons:
You get to use the existing charger wiring as-is, with zero modifications.
You retain the charger lockout capability, which prevents powering on the mower when plugged in.
The build quality of the ryobi charger is excellent compared to the aftermarket chargers.
Many people are using it and have reported no issues whatsoever.
There were good discussions in the forums on whether to use the stock charger, here is a sample:
https://tinyurl.com/2h3tds37
https://tinyurl.com/3jwv8j2e

Our Choice of Battery (DCHouse 48V 100Ah)
We chose to go with the DCHouse battery because of price and positive feedback in the group. It seemed to be a new arrival to this battery form factor and people in the group were speaking highly of its BMS/Bluetooth app. We chose 100 AH because we have a 1.25 acre plot and wanted to have more than enough coverage. Here is a great write-up on the DCHouse BMS:
https://rb.gy/csfdyn
https://tinyurl.com/2mjkdhyj

Battery Meter
We chose not to add any battery meter (including the one that came with the battery). The Bluetooth app that came with the battery was more than enough for our purposes. At any time we can take out our phone and see a realtime summary of the state of our battery and we always have plenty of capacity for our yard.
Here is the manual to the Bluetooth app: https://tinyurl.com/2mjkdhyj

Overall Outcome
We love our newly upgraded mower, all of the changes are for the better. The main problem of the battery running low during use are now gone. The performance is better during the mow, it is faster and never bogs down on hills (and our yard has many). Now we charge it to 100% and then use it until it gets down to 20-30%, charge it over night and then unplug it after the charge is complete. In addition, we no longer have to keep it plugged in when not in use.

Related Links
How Your 48v Battery Can Power Your Home in Emergencies: https://tinyurl.com/mt7a7mcs
Greg Handley's Facebook Group:   / ryobi48vmowers  
Music: https://tinyurl.com/yc76pa4h

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