72V 40Ah Triangle eBike Battery | Samsung 50S Cells

The BOOANT 72V 40Ah (2,880Wh) triangle lithium battery pack features 160 authentic Samsung INR21700-50S cells in a 20S8P array, JBD Bluetooth BMS telemetry, and an 84V 10A fast charger for 3,000W to 12,000W builds. 72V 40Ah Triangle Lithium eBike Battery Overview Quick Summary: High-capacity 72V 40Ah (2,880Wh) triangle lithium pack assembled with 160 genuine Samsung INR21700-50S high-drain cells in a 20S8P matrix. Built with smart JBD Bluetooth BMS protection and an included 84V 10A aluminum fast charger, engineered for frame-mount e-bike conversions from 3,000W up to 12,000W. Core Specs: 72V Nominal | 40Ah Capacity (2,880Wh) | 20S8P (160× Original Samsung 21700 50S Cells) System Rating: Available with 100A (300A Peak), 150A (450A Peak), or 200A (600A Peak) JBD Smart BMS Compatibility: Suitable for 3,000W to 12,000W brushless hub motors and mid-drive powertrains Charging: Includes 84.0V 10A Smart Aluminum Charger; recharge time approx. 4 to 5 hours (0.25C rate) Key Hardware & Performance Features Authentic Samsung INR21700-50S High-Discharge Cells Constructed strictly with 160 original Grade-A Samsung 50S cells. Rated for continuous high-amp draws with exceptionally low internal resistance, this 20S8P setup eliminates steep voltage sag during aggressive full-throttle acceleration and steep hill climbing. JBD Smart BMS with Real-Time Bluetooth Telemetry Integrated JBD Bluetooth protection board connects via the Xiaoxiang/Overkill app to display live cell-group voltages, dual temperature sensor readings, and real-time state of charge. Features programmable one-tap discharge control alongside hardware safety cuts against over-current, thermal spikes, and short circuits. FR4 Epoxy Internal Isolation & Sealed Outer Casing Each parallel cell row is isolated with rigid flame-retardant FR4 epoxy fiberglass boards to eliminate mechanical chafing and prevent internal shorts on harsh terrain. The pack is heat-sealed in heavy-duty industrial PVC wrap with liquid waterproof adhesive across the top wire entries to resist road spray. Technical Specifications Nominal Voltage: 72V Rated Capacity: 40Ah (2,880Wh / 2.88 kWh) Cell Model: Authentic Samsung INR21700-50S (Grade-A, 5000mAh) Cell Configuration: 20S 8P (160 Cells Total) Cut-off Voltage: Charge Full: 84.0V | Discharge Cut-off: 60.0V Discharge Current: 100A / 150A / 200A Continuous (300A / 450A / 600A Peak options) Dimensions & Weight: 375 × 250 × 330 × 95 mm (Thickness: 85 mm) | Approx. 11.5 kg (25.35 lbs) Operating Temperature: Discharge: -20°C to 60°C (-4°F to 140°F) | Charge: 0°C to 45°C (32°F to 113°F) Warranty: 1-Year Manufacturer Warranty & Lifetime Technical Support Package Contents (What You Will Get) 1 × 72V 40Ah Triangle Lithium Battery Pack (20S8P Samsung 50S, Built-in JBD Bluetooth BMS) 1 × 84.0V 10A Intelligent Aluminum Fast Charger (Active Cooling Fan, CC/CV Mode) 1 × AC Power Cable (Matched to destination: US, EU, or UK wall plug) 1 × Heavy-Duty Discharge Extension Cable (Choice of QS8 Anti-Spark, QS10, or Anderson connector) 1 × Custom Weather-Resistant Triangle Frame Battery Bag with Reinforced Mounting Straps Frequently Asked Questions (FAQ) Q: What motors or conversion kits work with this battery? A: This 72V pack powers high-performance brushless motor systems rated from 3,000W up to 12,000W. It pairs directly with QS Motor hubs (QS205, QS273), MXUS Turbo drives, and programmable controllers like FarDriver, Sabvoton, Kelly KLS, and ASI BAC4000/BAC8000. Q: How long does a full recharge cycle take? A: A full recharge from 0% to 100% takes approximately 4 to 5 hours using the included 84V 10A smart aluminum charger. The 10A current is evenly split across 8 parallel cells (1.25A per cell, or 0.25C rate), ensuring swift turnaround without heat buildup or premature cell degradation. Q: What estimated range will this pack provide per charge? A: Providing 2,880Wh of stored capacity, typical cruising at moderate speeds (25–35 mph) yields 70 to 100 miles (110–160 km) of range. High-throttle continuous riding above 45 mph delivers approximately 35 to 65 miles (55–105 km), depending on rider weight, terrain incline, and tire drag.