RYOBI RM300e – KELLY KDS 48V RETROFIT GUIDE This guide explains how to replace the discontinued OEM traction controller in the Ryobi RM300e with a Kelly KDS48100E 48V DC motor controller. This restores full drive functionality while keeping the OEM blade system and safety switches.PARTS LIST:Core Components:1. Kelly KDS48100E motor controller2. Kelly USB programming cable3. 0–5V Hall throttle (thumb or pedal style)4. 48V main contactor (Tyco EV200 or Albright SW180 recommended)5. 48V precharge resistor (100–200 ohm, 10 watt)6. 48V main fuse (150–200 amp ANL or Class‑T)Wiring and Con... Read More










