48V 20Ah Triangle Lithium E-Bike Battery Pack Overview Quick Summary: High-performance 48V 20Ah (960Wh) frame-mounted triangle battery engineered with 52 original Samsung INR21700-50G Grade-A cells (13S4P configuration). Features an integrated Jiabaida (JBD) Smart Bluetooth BMS and rigid ABS hard case, designed for 250W–1500W DIY e-bike conversion systems. Core Specs: 48V Nominal | 20Ah (960Wh) | 13S4P Samsung 50G BMS Control: JBD Smart Bluetooth BMS (30A/40A Continuous Rating) Motor Fitment: Compatible with 48V 250W–1500W Hub & Mid-Drive Motors Fast Charging: Includes 54.6V 5A Smart Charger (Full charge in 4–4.5 hrs) Key Features & Hardware Details Authentic Samsung 21700 50G Cells (13S4P) Constructed with 52 high-density Grade-A Samsung INR21700-50G cells to ensure low internal resistance, minimal voltage sag under heavy acceleration, and an extended cycle life exceeding 800 charge cycles. Heavy-Duty Rigid ABS Triangle Case Impact-resistant hard enclosure custom-molded for bike inner triangles. Built with a dedicated master on/off switch, real-time LED battery gauge, and an external 5V 2A USB charging port for mobile devices. Jiabaida (JBD) Smart Bluetooth BMS Features real-time wireless telemetry via iOS and Android apps. Allows active monitoring of individual cell balance, pack temperature sensors, state-of-charge (SoC), and dual-level overcurrent protection (up to 120A peak). Universal Motor System Compatibility Fully compatible with 48V brushless DC motor systems from 250W up to 1500W, including Bafang BBS02, BBSHD, Voilamart, and custom hub conversion kits. Technical Specifications Nominal Voltage: 48V Rated Capacity: 20Ah (960Wh) Cell Model: Samsung INR21700-50G (5000mAh) Configuration: 13S4P (52 Cells) Charge Cut-off Voltage: 54.6V Discharge Cut-off Voltage: 39.0V Continuous Discharge Current: 30A / 40A Optional Peak Discharge Current: 90A (30A BMS) / 120A (40A BMS) Enclosure Dimensions: 375 x 235 x 410 x 90 mm (14.76 x 9.25 x 16.14 x 3.54 in) Pack Weight: Approx. 5.0 kg (11.02 lbs) Operating Temperature: Charge: 0°C to 45°C | Discharge: -20°C to 60°C Warranty: 2-Year Limited Manufacturer Warranty Package Contents (What You Will Get) 1 × 48V 20Ah Triangle Ebike Battery (Hard Case with Bluetooth BMS) 1 × 54.6V 5A Charger (AC Input 100-240VAC, DC Output 54.6V 5A) 1 × AC Power Cable (US Standard / Matched to Country Standard) 1 × Discharge Extension Cable (XT90 Male to XT90 Female) 9 × Battery Magic Tape Straps Frequently Asked Questions (FAQ) Q: Which motor wattage is compatible with this 48V 20Ah battery? A: This battery supports 48V motors rated between 250W and 1500W. The 30A BMS option handles continuous loads up to 1440W, while the 40A BMS option supports setups up to 1920W continuous power. Q: How do I monitor individual cell health via the Bluetooth BMS? A: Download the official Xiaoxiang/JBD BMS application from the App Store or Google Play, enable your phone's Bluetooth, and select your battery to view real-time cell balancing voltages, cycle counts, and temperatures. Q: What riding range can I expect from a single charge? A: With a total capacity of 960Wh, typical real-world range spans 40 to 65 miles (65–105 km) in pedal-assist mode, or 25 to 35 miles (40–55 km) on pure throttle, depending on terrain, rider weight, and motor load.
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