Sur Ron 72V 50Ah Vengeance V2 Battery (3600Wh, 40kW) + Charger

The World’s Most Powerful 72V Sur Ron / Talaria Battery

Extreme Torque. Massive Power. Malevolently Engineered.

Compatible with: ASI, EBMX, VTB, Torp, KO & Nucular Controllers
⚠️ Not compatible with OEM Sur Ron Controller

Key Features

• Voltage / Capacity: 72V / 50Ah (3600Wh)

• Peak Output: 40kW (550A burst / 250A constant)

• Battery Chemistry: 21700 Cylindrical INR Cells (220 pcs)

• Range: 244% increase over OEM (3663Wh)

• Weight: 19.2kg

• Height: 373mm (to top of lid, handles not included)

• Exoskeleton: Marine-Grade 316 Stainless Steel (Powder-Coated)

• Warranty: 18-Month Cell Warranty / 12-Month BMS & Components

• Free Upgraded High-Power Loom Included

Unmatched Power & Protection

The Vengeance V2 is our most aggressive and powerful battery offering to date. Designed to deliver extreme torque and acceleration, this 72V 50Ah powerhouse features a fully protected 250A/550A Bluetooth BMS, advanced dual QS8 parallel connectors, and a high-grade stainless steel casing — ensuring both blistering performance and long-term durability.

Performance Highlights

• Output Power: 40kW peak (BMS-limited to 550A burst, 250A sustained)

• Efficiency: Parallel discharge configuration significantly reduces heat and maximizes current flow

• Cell Quality:

  • 21700 cells (Molicel P45B equivalent)

  • Low internal resistance for cooler operation

  • 36A continuous, 45A max per cell

🔋 Extended Warranty: 18 months on cells due to high confidence from extensive in-house testing.

Built to Endure

• Casing: Upgraded to marine-grade 316 stainless steel, powder-coated inside and out for total rust resistance and rugged protection.

• Thermal Protection:

  • Multi-layer insulation: fiberboard, Kapton tape, heat shrink

  • Individual cell wrapping

  • Pure copper sheet connections for maximum conductivity

• Bluetooth BMS:

  • Real-time monitoring and balancing

  • Mobile app control (status, charging, on/off)

  • Settings modification not recommended – may void warranty

Connectivity & Wiring

• QS8 Connectors:

  • Primary discharge cables: Dual QS8s with 6 AWG wiring

  • Secondary power circuit: Additional 8 AWG QS8 to red trip switch

• Parallel Power Delivery:

  • Reduces strain on the OEM loom

  • Ensures efficient load sharing and minimal heat

• Charging Port: XT60

Fitment & Installation

• Form Factor: Same physical size as our 72V Dominator battery

• Fits: Sur Ron and Talaria frames (Sur Ron requires lid hinge extenders – included)

• Mounting: Integrated cord handle for safe lifting

• Height: 373mm to battery lid (excluding handles)

• Connection Order:

  1. Ensure red trip switch is OFF

  2. Connect OEM power cable

  3. Turn red trip switch ON

  4. Connect parallel power leads
     (Simple instructions provided)

Charging Instructions

⚠️ First Charge Is Critical!
Always connect the charger to mains power first, then plug into the battery to prevent arcing.
Allow a 12-hour balance charge on first use.

• Charger Included: 72V (84V) 8A

• Charge Safely: Always charge in a supervised, fire-safe area.

Specifications Summary

Battery Activation (Required)

Upon delivery, please contact us to activate your battery. This also confirms receipt and begins your warranty period.

Warranty

• Cells: 18-month extended warranty

• BMS & Other Components: 12-month warranty

• UK Customers: If a fault occurs within 6 months, return shipping is covered by us

• International Customers / After 6 Months: Return shipping is customer’s responsibility

🏍️ Bike Not Included
⚠️ This battery will not operate with the original OEM Sur Ron controller