SEENRUY 72V 20Ah Triangle Lithium-Ion eBike Battery Pack – Premium 21700 20S4P Architecture with Integrated Daly BMS, 84V Fast Charger & Custom Frame Storage Bag

Unleash pure, high-voltage performance on your high-power electric bicycle build. The SEENRUY 72V 20Ah Triangle Lithium-Ion Battery Pack is a high-output power core engineered specifically for high-wattage e-bikes and custom conversions demanding between 3000W to 5000W of continuous punch. Built using premium high-energy density 21700 5Ah lithium cells in a 20S4P configuration, this battery delivers superior heat dissipation, lower internal resistance, and exceptionally long range compared to standard 18650 packs.

Equipped with a genuine Daly Smart/Hardware Battery Management System (BMS), the pack actively regulates cell balance, over-charge, over-discharge, and thermal spikes across its full 84V to 50V operating window. Complete with a custom-fit triangle frame bag and an 84V 5A fast charger, this turn-key power package is ready to drop directly into your bike's center frame triangle.

🚀 Key High-Performance Features

• High-Density 21700 Cell Architecture: Utilizes top-tier 21700 (5Ah) lithium-ion cells in a 20S4P configuration to pack maximum watt-hours into a compact, center-of-gravity friendly triangle profile.

• Engineered for 3000W–5000W Motors: Designed to support high-discharge controller setups with continuous current options up to 100A, giving you explosive acceleration and high top-end speeds without premature voltage sag.

• Integrated Daly BMS Protection: Industrial-grade Daly Battery Management System guards your investment against short circuits, cell over-charging (84V ceiling), over-discharging (50V floor), over-current, and thermal loads.

• 2000+ Cycle Long-Life Rating: Built for durability, delivering over 2,000 complete charge/discharge cycles at 80% Depth of Discharge (DOD) before noticeable capacity degradation.

• Turn-Key Hardware Bundle: Comes complete with a tailored hydrophobic triangle frame bag for direct mounting and a matching 84V 5A fast charger to get you back on the road quickly.

• Optional Bluetooth BMS Upgrade: Bluetooth-enabled BMS modules are available upon request to monitor individual cell voltages, pack temperature, and real-time amp draw straight from your smartphone.

📊 System Specifications & Technical Blueprint

Please review the full electrical parameters to ensure controller and motor compatibility with your setup: 

⚙️ Installation & Battery Maintenance Protocols

To get the best lifetime performance out of your 72V 20Ah triangle battery pack, follow these care standards:

1. Initial Balance Charge: Fully charge the pack to its 84V cutoff using the supplied 5A charger before your first high-power throttle run. This allows the Daly BMS to equalize cell voltages across all 20 series groups.

2. Proper Frame Mounting: Secure the pack inside the provided triangle bag and ensure it is tightly strapped to the top tube, down tube, and seat tube. Use extra padding if mounting against bare metal frames to prevent vibration wear.

3. Storage Guidelines: If storing the pack for extended periods (over 30 days), maintain the voltage around 72V–75V (approx. 50–60% charge) in a dry, room-temperature environment. Never store a 72V battery fully depleted at 50V.

📦 What's Inside the Box?

• 1 x SEENRUY 72V 20Ah 21700 Triangle Lithium-Ion Battery Pack (Model: TPL7220)

• 1 x High-Performance 84V 5A Lithium Smart Charger

• 1 x Custom-Fit Heavy-Duty Triangle Frame Bag

• (Optional) Bluetooth BMS Module Connection (Available by request before dispatch)

Ready to upgrade your e-bike to extreme 72V power? Supply your 3000W–5000W motor with stable, high-capacity 21700 cell output. Select your discharge current configuration below, click Add to Cart, and power your build today!