artical
E‑Z‑GO Medalist: D‑Shaped PowerWise Plug & 36V Charger Guide
Intro
This guide is for 1994–1995 E-Z-GO Medalist electric carts. You’ll confirm the D-shaped PowerWise (D-plug) charging port, pick a compatible 36V smart charger, and avoid common connector mix-ups. We also include lithium-conversion basics, wiring/safety notes, and a quick troubleshooting checklist.
Quick Specs
- Model covered: E-Z-GO Medalist (electric), 1994–1995
- System voltage: 36V
- OEM port: D-shaped PowerWise (two-slot “D” silhouette)
- Typical charger output: 12–15A smart charger (up to 18A with healthy cabling/batteries)
- Chemistry supported: Lead-acid by default; LiFePO₄ with a lithium-profile charger
- Common upgrades: New D-plug receptacle, D-plug ↔ Anderson/SB50 adapter for shop/fleet use
How to Identify Your Charging Port
- Shape: One flat side + one rounded side = a stylized “D”.
- Slots: Two large keyed slots—do not confuse with triangle 3-pin (48V) or Crowfoot two-blade (pre-1994 Marathon).
- Location: Typically on the front cowl or side panel.
- Voltage check: Medalist (1994–1995) electric models are 36V—verify the pack label or battery count if unsure.
Recommended Chargers (Replacement & Upgrade)
Match both the plug type (D-plug) and voltage (36V). For lithium conversions, use a LiFePO₄ profile and follow your BMS limits.
A) Standard Replacement (Lead-Acid)
- 36V / 12–15A smart charger with automatic start/stop, temperature/voltage protections.
CTA: 36V D-Plug Smart Charger (12–15A)
B) Faster Turnaround (Check Cables/Heat)
- 36V / 18A smart charger can shorten charge time; use only with healthy batteries and proper-gauge cables, monitor connector temperature.
CTA: 36V 18A D-Plug Charger
C) Lithium Conversions (LiFePO₄)
- 36V LiFePO₄ profile (no equalization), end voltage per pack/BMS. Clearly label the charger as lithium.
CTA: 36V LiFePO₄ D-Plug Charger
D) Receptacle & Adapter Options
- D-plug receptacle kit (housing, terminals, gasket).
- Optional D-plug ↔ Anderson/SB50 adapter for workshop quick-connects.
CTA: D-Plug Receptacle Replacement Kit
Wiring & Safety Notes
- Polarity matters: Older harnesses may have been repaired—verify polarity with a meter before connecting a new charger.
- Contacts: Heat-darkened slots or loose lugs raise resistance—replace worn parts.
- Cable & fuse: Use the specified wire gauge and correct inline fuse; avoid undersized extension cords.
- Ventilation: Charge on a dry, ventilated surface; don’t cover the charger.
- Lithium caution: Do not use lead-acid equalization on lithium packs.
Troubleshooting Checklist
- Charger won’t start
- Pack voltage below start threshold → pre-charge to nominal first.
- Corroded/loose D-plug contacts or cracked housing → clean/replace.
- AC outlet/fuse issue → verify input power.
- Charging stops early
- High internal resistance / weak battery → load test & balance.
- Thermal/voltage protection triggered → improve ventilation; check pack health.
- Intermittent or hot connector
- Worn receptacle contacts → replace receptacle.
- Broken strain relief or frayed cable → replace cord/plug assembly.
FAQ
Q1: What plug does the 1994–1995 Medalist use?
A: The D-shaped PowerWise (D-plug) charging receptacle.
Q2: Is the Medalist always 36V?
A: 1994–1995 electric Medalist carts are typically 36V. Confirm by pack label or battery count.
Q3: Can I use a triangle 3-pin or Crowfoot charger?
A: No. Plug geometry and voltage must match. Use a 36V D-plug charger.
Q4: Can I fast-charge my Medalist?
A: 12–15A is typical; 18A is possible with healthy batteries/cables—monitor heat and follow manufacturer guidance.
Q5: I converted to lithium—what charger should I use?
A: A 36V LiFePO₄ charger with the correct charge curve and end voltage per your BMS. No lead-acid equalization.
Q6: Can I replace the D-plug receptacle myself?
A: Yes, with basic tools (crimper, meter, heat-shrink). Disconnect the pack, verify polarity, and follow torque/specs.
