What cells are used in the 72V 20AH triangle battery?

This battery pack uses 80 genuine Samsung INR21700-50G cells. They are configured in a 20S 4P arrangement to deliver a nominal 72V and 20AH capacity.

How does the Smart Bluetooth BMS function?

The integrated Smart BMS connects via Bluetooth to a mobile application. It allows real-time monitoring of individual cell voltages, total capacity, cycle count, and temperature. It also enables remote control of charge and discharge and provides comprehensive protection against overcharge, over-discharge, short circuits, and overheating.

What charger is included with the battery?

The package includes an 84V 5A fast smart charger. It is designed to efficiently charge the 72V battery while protecting the Samsung cells' chemistry through a controlled charging profile.

What makes the JBD Smart BMS different from basic protection boards?

Unlike basic BMS units that only provide cutoff protection, the JBD system offers full visibility and control over battery performance via Bluetooth, including real-time monitoring, remote charge/discharge management, and passive cell balancing.

What configurations does the JBD Smart BMS support?

This JBD BMS is configured for 20S Li-ion packs, commonly used in 72V high-performance systems with Samsung 21700-50G cells.

Is the JBD BMS suitable for demanding riding conditions?

Yes. The JBD BMS is engineered to maintain safe operation under high load and demanding riding conditions, with dual temperature sensors and comprehensive electrical protections.

How does the WATE 84V 5A charger help extend battery lifespan?

The charger is designed to minimize cell stress during charging by dynamically following a CC/CV curve tailored for lithium-ion cells. This approach, combined with coordination with the Smart BMS, helps maintain cell balance and extend overall battery lifespan.

What makes the WATE charger different from generic 84V chargers?

Unlike generic chargers that rely on fixed output profiles, the WATE system dynamically adapts its CC/CV curve to the specific needs of lithium-ion cells. It also works in coordination with the battery's Smart BMS and Samsung cells to ensure balanced, controlled energy flow throughout the entire charging cycle.

Home / Products / Booant 72V 20Ah E-Bike Triangle Battery | Samsung 50G Cells, Bluetooth BMS | Fits 1800W-3000W Motors

Booant 72V 20Ah E-Bike Triangle Battery | Samsung 50G Cells, Bluetooth BMS | Fits 1800W-3000W Motors

$869.99

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🚀 Maximum Range & Power : 1440Wh Energy Capacity - Experience extended rides with our high-performance 72V 20Ah triangle battery.
🔺 Perfect Triangle Fit : Specifically engineered to fit e-bike triangle frames (approx. 11"×6.9"×3.5"×8.7"×2.6"×3") and weighing only 14.3 lbs. This space-saving 72V 20Ah lithium battery maintains a sleek profile while providing maximum power capacity in minimal space.
🔋 Samsung Premium Cells : Built with 80 genuine Samsung 21700-50G lithium-ion cells in a 20S4P configuration. This premium cell selection guarantees superior energy density, extended battery life (1000+ cycles), and enhanced safety for your 72V ebike system.
📱 Smart App Control : Features an intelligent Bluetooth-enabled BMS for real-time protection and monitoring of your 20Ah lithium battery. Remotely manage charging, track performance, and receive safety alerts through our dedicated iOS/Android mobile application.
⚡ Fast Charging & Custom Power : Includes an 84V 5A fast charger for quick recharge of your 72V lithium battery. Choose from 30A or 50A BMS options to perfectly match your motor power requirements (1800W to 3000W) for optimal electric bike performance.

BMS Discharge Current (Select Motor Power)

30A | For 1200W Motors

40A | For 2000W Motors

50A | For 2500W Motors

Discharge Plug

QS8 plug

Anderson 50A

XT60F/M

XT90F/M

Wire only

BMS Discharge Current (Select Motor Power)

30A | For 1200W Motors 40A | For 2000W Motors 50A | For 2500W Motors

Discharge Plug

QS8 plug Anderson 50A XT60F/M XT90F/M Wire only

Quantità

Free Shipping

30 Day Return

100% Secure Payment

Fast Delivery

24-Hour Prompt Response

1 Years Warranty

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72V 20AH Triangle Ebike Battery | Samsung 50G Cells | Smart BMS

Built for High-Power E-Bike Systems

72V 20AH Triangle Ebike Battery

Built with genuine Samsung 21700 cells for stable, high-output performance across demanding riding conditions.

Integrated Smart Bluetooth BMS with real-time voltage, capacity, temperature, and health diagnostics.

Complete kit includes an 84V 5A rapid smart charger engineered for safe, balanced, and efficient recharging cycles.

Triangle form factor engineered to fit most frame geometries, ensuring a low center of gravity and stable handling.

Engineered for long-term reliability under high-load conditions.

Stable High-Output Power

80 high-drain 21700 cells in 20S 4P configuration.

5000mAh rated capacity per cell, delivering long cycle life and consistent power output.

Intelligent Battery Control

Real-time cell-level monitoring via dedicated mobile application.

Remote charge/discharge management, overheat protection, and short circuit safety.

Efficient & Safe Charging

Smart charging system included as standard equipment.

Optimized to recharge the 72V pack efficiently while preserving Samsung cell integrity.

Optimized Frame Stability

Low center of gravity design for improved bike stability.

Compatible with most mountain bike (MTB), fat-tire, and cargo frame styles.

Samsung INR21700-50G Cell | 5000mAh High-Capacity Li-ion for E-Bike & Energy Storage

Samsung INR21700-50G

5000mAh High-Capacity 21700 Lithium-Ion Cell

The core of every high-performance battery starts with the right cell. This pack is built using genuine Samsung INR21700-50G cells for consistent energy delivery and long-term reliability.

🔋
Capacity: 5,000mAh; High energy density · 253 Wh/kg
⚡
Continuous Discharge: 9.8A; ~2C rated · Low internal resistance
🔄
Cycle Life: 1,000+; ≥80% capacity retention
📐
Form Factor: 21700; 21mm × 70mm · 69g

Longer Range per Charge

5,000mAh capacity delivers more distance on every charge — without adding extra weight to your ride.

Reliable Performance Over Time

Rated for 1,000+ cycles at ≥80% capacity retention. Stays dependable through years of daily use.

Stable Output in Real-World Conditions

Low internal resistance reduces voltage sag when accelerating or climbing. Performs reliably from -20°C to 60°C.

Balanced for Range & Stability

Optimized for high capacity and stable discharge. Ideal for e-bike systems, cargo bikes, and energy storage modules that prioritize range over extreme peak current.

JBD Smart Bluetooth BMS | Real-Time Battery Visibility & Control for 72V Li-ion Systems

JBD Smart Bluetooth BMS

Real-Time Battery Visibility · Full Control · Consistent Cell Performance

This 72V 20AH triangle battery is managed by a JBD Smart BMS — engineered for 20S Li-ion packs using Samsung 21700-50G cells. JBD is widely used in high-performance ebike and energy storage systems for its stable performance and reliable protection logic.

Unlike basic BMS units that only provide cutoff protection, this system offers full visibility and control over battery performance. Built-in Bluetooth streams real-time data to the XiaoxiangBMS app (iOS & Android): individual cell voltages, total voltage, current, state of charge, and temperature.

Remote charge/discharge control plus comprehensive protections — overcharge, over-discharge, overcurrent, short circuit, and dual temperature sensors — keep your battery safe. Engineered to maintain safe operation under high load and demanding riding conditions.

Real-Time Battery Visibility

Cell voltages, SOC, current, and temperature streamed live to your phone via Bluetooth.

Overcharge Protection

Full Control Over Your Battery

Enable or disable charge/discharge remotely — ideal for storage, maintenance, and security.

Over-discharge Protection

Consistent Cell Performance

Passive cell balancing keeps all 20 cells aligned, maximizing usable capacity every cycle.

Overcurrent & Short Circuit

Long-Term Battery Health Insight

Track cycle count, remaining capacity, and health trends to stay ahead of performance drops.

Temperature Protection

WATE 84V 5A Smart Fast Charger | Optimized Charging for 72V Ebike Battery Systems

84V 5A Smart Fast Charger

Optimized Charging · Safe Under All Conditions · Clear Status

Technical overview: The WATE 84V 5A smart charger is engineered as the dedicated power module for the 72V 20AH triangle battery system. Its dynamic CC/CV algorithm is precisely tailored for lithium-ion cells. Designed to minimize cell stress during charging, helping extend overall battery lifespan.

System coordination: Works in coordination with the Smart BMS and Samsung cells to ensure balanced, controlled energy flow throughout the entire charging cycle. Unlike generic chargers that rely on fixed output profiles, this system dynamically follows a CC/CV curve tailored for lithium-ion cells. Wide-input design (100-240V AC, 50/60Hz) enables consistent operation worldwide.

A comprehensive safety architecture includes safeguards against overvoltage, overcurrent, short circuit, reverse polarity, and thermal overload. The integrated LED interface communicates operational status: red indicates active charging, green signals completion and float maintenance.

Optimized Charging for 72V Systems

Calibrated for 20S lithium packs, delivering efficient energy transfer while actively minimizing cell stress.

Global Compatibility

Accepts 100-240V AC, 50/60Hz. Consistent performance across different regional grids without external converters.

Safe Charging Under All Conditions

Multi-layer defense against overvoltage, overcurrent, short circuit, reverse polarity, and overheat events.

Clear Charging Status at a Glance

Red light during charge cycle. Green light when complete. Simple, immediate diagnostic interface.

Discharge Connector Selection Guide | XT60 XT90 QS8 Anderson | BOOANT 72V 20AH Triangle Ebike Battery

Customizable Discharge Connector

Choose Your Plug · Perfect Fit · DIY Friendly

Every ebike build is unique. Connector type can be selected to match your controller interface, eliminating the need for adapters and ensuring a direct, reliable connection. Available options include XT60, XT90, QS8, and Anderson Powerpole — each suited to different current demands and system configurations.

Not sure which connector matches your setup? Our support team can help you identify the correct plug based on your controller specifications and motor power requirements.

Choose based on your system current and controller requirements: XT60 for ≤60A setups, XT90 for high-performance builds above 1500W, QS8 for extreme power applications.

Compatible with common systems such as Bafang BBSHD, Cyclone motors, and high-power DIY conversion kits.

XT60

60A Continuous

Standard choice for mid-drive motors and daily riding. Reliable, widely compatible, no adapters needed.
XT90

90A Continuous

Built for controllers above 1500W. Anti-spark version available to protect contacts during connection.
QS8

120A Continuous

Maximum current handling with anti-spark built in. Designed for extreme high-power builds and racing setups.
Anderson

50A - 175A

Genderless, stackable connector system. Choose the exact amp rating to match your specific controller.

72V 20Ah Triangle Battery BMS Current Options | BOOANT Smart Li-ion Technical Specifications

Selectable BMS Discharge Current

30A · 40A · 50A Continuous Output

Not all ebike builds demand the same power. We offer three BMS discharge current options — 30A, 40A, and 50A — so you can precisely match your battery's output to your motor's requirements for optimal performance, efficiency, and range.

All three options share the same premium Samsung 50G cells and JBD Smart BMS. The only variable is the continuous discharge limit, giving you full flexibility to balance power delivery with riding distance.

⚡ Principle: P(W) = V × I(A) — in a 72V system, current directly sets max power output.

📐 Guideline: Motor W ÷ 72V ≈ Required A — always include safety margin.

⚠️ Risk: Undersized BMS may limit performance or trip protection under peak load.

30A

Continuous Discharge

⚡ 1200W Motors | ~2160W peak

Optimized for range and efficiency — ideal for daily commuting and long-distance cruising.

40A

Continuous Discharge

⚡⚡ 2000W Motors | ~2880W peak

Balanced acceleration and range — strong hill-climbing for mixed riding conditions.

50A

Continuous Discharge

⚡⚡⚡ 2500W Motors | ~3600W peak

Maximum power delivery — full torque for off-road, cargo, and high-performance builds.

72V 20AH Triangle Lithium Battery | Samsung 21700 50G · JBD Smart BMS · 1440Wh

72V 20AH Triangle Battery

Samsung 21700 50G Cells · JBD Smart Bluetooth BMS · 1440Wh · Three Power Tiers

🎯 Which Version Is Right for You?

30A

Max Range

Optimized for daily commuting and long-distance riding. Lower current draw preserves battery life and extends range per charge.

Daily Commuting Maximum Range

40A

Balanced Performance

The sweet spot for most riders. Strong acceleration with excellent range. Handles varied terrain without compromise.

All-Around Use Best Value

50A

Maximum Power

Built for high-power setups and off-road riding. Delivers peak current when you need it most on steep climbs and technical terrain.

Off-Road High Power

📋 Physical & Electrical Specifications

Battery Model	72V 20AH (1440Wh)→ High-capacity energy for extended rides
Configuration	20S 4P — 80 matched Samsung INR21700-50G cells→ Consistent performance across all cells
Cell Technology	Samsung 21700 50G · 5000mAh · 3.6V–3.7V nominal→ Higher energy density than standard 18650 packs
Standard Voltage	72V
Charge Cut-off	84V — automatic protection→ Prevents overcharging, extends cell lifespan
Discharge Cut-off	50V — automatic protection→ Guards against deep discharge damage
BMS Options	30A (Max Range) · 40A (Balanced) · 50A (Max Power)→ Choose based on your riding style
Dimensions Triangle form factor	280×175×90×220×65×75 mm 11.0×6.9×3.5×8.7×2.6×3.0 in → Fits most triangle frame spaces for clean installation
Weight	6.5 kg / 14.3 lbs → Lighter than typical 72V 20Ah packs — improves handling and frame compatibility

📱 Smart BMS & Control

BMS System	Powered by JBD Smart Bluetooth BMS→ Industry-leading protection with real-time data at your fingertips
Communication	Bluetooth & WiFi — iOS and Android compatible→ Monitor voltage, current, temperature, and SOC from your phone
Core Protections	Overcharge · overdischarge · overcurrent · short circuit · temperature · cell balancing→ Complete safety net for worry-free operation

🔌 Charger & Operating Conditions

Included Charger	84V 5A Smart Charger — 100V–240V worldwide input→ Plug in anywhere, full smart charging protection
Charging Method	CC & CV (Constant Current & Constant Voltage)→ Industry-standard charging for maximum cell longevity
Charging Time	~5 hours to 80% · 6–7 hours to full→ Quick top-up ready; overnight for a full charge
Charge Temperature	0–60°C (recommended < 45°C)→ Safe charging in most climates; avoid direct sunlight
Discharge Temperature	-20–60°C→ Reliable performance from freezing winters to hot summers

⚡ Performance Metrics

80A–100A

Peak Discharge Current

BMS-dependent peak output. Handles steep climbs and rapid acceleration without voltage sag.

≥800

Cycle Life

Cycles to 80% remaining capacity under standard conditions. Samsung cells deliver long-term reliability.

21700

Energy Density Advantage

Samsung 21700 cells provide higher energy density than standard 18650 packs — more power in the same space.

🔬 Why Samsung 21700 50G Cells?

Compared to standard 18650 battery packs:

Higher capacity per cell — fewer cells needed for the same energy
Lower heat generation under heavy load — safer sustained performance
Longer cycle lifespan — more rides before capacity degradation
Better high-current stability — consistent power delivery when you need it

🔧 Designed For

⚙️

Bafang BBSHD

Mid-drive systems

🛞

Hub Motors

1500W–3000W

🔨

DIY Conversions

Custom ebike builds

⛰️

Off-Road & Cargo

Heavy-duty applications

🛡️ Built for Reliability

✅

Matched Samsung Cells

All 80 cells are genuine Samsung INR21700-50G, matched for consistent performance

🛡️

Smart BMS Protection

JBD system guards against all common failure modes in real time

🔩

Strict Assembly

Precision welding and assembly standards for long-term structural integrity

📅

Designed for Stability

Engineered for years of reliable service across diverse riding conditions

💡 Storage & Care Guidelines

Optimal Storage

• SOC: Maintain 40–60% (3.7–3.8V per cell)
• Temperature: 15–25°C ideal (< 2% annual degradation)
• Long-term: Shallow cycle (30% → 80%) every 3 months

Safety Notes

• Avoid temperatures above 50°C or below -30°C
• Protect from impact and compression
• Keep away from metal objects
• Use only the supplied 84V smart charger

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Booant 72V 20Ah E-Bike Triangle Battery | Samsung 50G Cells, Bluetooth BMS | Fits 1800W-3000W Motors

72V 20AH Triangle Ebike Battery

Stable High-Output Power

Intelligent Battery Control

Efficient & Safe Charging

Optimized Frame Stability

BOOANT 72V 20AH Triangle Lithium Battery Technical Overview

Samsung INR21700-50G Electric Bike Battery Pack with Bluetooth BMS and Smart Charger

Samsung INR21700-50G

Longer Range per Charge

Reliable Performance Over Time

Stable Output in Real-World Conditions

Balanced for Range & Stability

JBD Smart Bluetooth BMS

Real-Time Battery Visibility

Full Control Over Your Battery

Consistent Cell Performance

Long-Term Battery Health Insight

84V 5A Smart Fast Charger

Optimized Charging for 72V Systems

Global Compatibility

Safe Charging Under All Conditions

Clear Charging Status at a Glance

WATE 84V 5A Smart Fast Charger – Technical Specifications and Battery Longevity Focus

Customizable Discharge Connector

XT60

XT90

QS8

Anderson

Selectable BMS Discharge Current

Continuous Discharge

Continuous Discharge

Continuous Discharge

72V 20AH Triangle Battery

🎯 Which Version Is Right for You?

📋 Physical & Electrical Specifications

📱 Smart BMS & Control

🔌 Charger & Operating Conditions

⚡ Performance Metrics

🔬 Why Samsung 21700 50G Cells?

Compared to standard 18650 battery packs:

🔧 Designed For

🛡️ Built for Reliability

💡 Storage & Care Guidelines

Optimal Storage

Safety Notes

72V 20AH Triangle Lithium Battery Complete Technical Specifications

Customer Reviews

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