Home / Products / BOOANT 72V 20Ah Triangle Lithium Battery | Samsung 50G Cells & JBD Bluetooth BMS

72V 20Ah Triangle Lithium Battery | Samsung 50G Cells & Smart Bluetooth BMS

Engineered for custom high-voltage builds requiring an optimized center of gravity and flawless chassis balance, the BOOANT 72V 20Ah Triangle Lithium Battery is built for mid-frame integration. Packed with 80 authentic, high-density Samsung 21700 50G cells in a 20S4P configuration, it delivers a steady 1440Wh energy vault. Encapsulated in a lightweight, space-saving high-temperature PVC wrap to eliminate bulky outer case deadweight, this compact pack fits seamlessly inside standard e-bike center frame triangles—making it the top choice for Stealth Bomber upgrades, racing e-bikes, and heavy-duty DIY conversions.

Each triangle pack features an integrated JBD Smart Bluetooth BMS, letting you track cell balancing, live current draw, and thermal limits directly via the smartphone Xiaoxiang App. Wired with low-resistance 10AWG silicone copper discharge cables to prevent full-throttle throttling, and bundled with our premium aluminum-cased 84V 4A smart fast charger with an active cooling fan, this high-voltage power system ensures complete active safety and relentless trail endurance.

Technical Specifications

Core Battery Metrics
Battery ModelBOOANT 72V 20Ah Premium Triangle Lithium Battery
Battery Type / FormTriangle Framework Profile (Center Frame Corner Space Fit)
Cell Model CoreSamsung INR21700-50G (Authentic High-Density Power Cells)
Cell Configuration20S4P (80 Premium Cells Scaffolding Matrix)
Nominal Voltage72V (Standard NMC Chemistry Calibration)
Capacity / Energy20Ah / 1440Wh (High-Output Energy Vault)
Full Charge Voltage84V DC (Max Upper Cut-off)
Discharge Cut-off60V (Safe 3.0V per Cell BMS Protective Threshold)
BMS InfrastructureIntelligent JBD Smart Bluetooth BMS Board (Xiaoxiang App Telemetry)
Heavy-Duty CablingDual 10AWG Low-Resistance High-Temperature Silicone Copper Lines
Multi-Dimensional Geometry Three Edges: 280 × 220 × 175 mm (11.02 × 8.66 × 6.89 in)
Thickness / Depth: 75 mm (2.95 in)
Corner Facets: 90 × 65 mm (3.54 × 2.56 in)
Net Hardware WeightApprox. 6.5 kg (14.3 lbs) — Lightweight Space-Saving Layout
Enclosure MaterialHigh-Temperature Insulated Protective PVC Film Wrap
Included ChargerBOOANT 84V 5A Pro Smart Fast Charger (Aluminum Hard-Case | Cooling Fan)
Expected Cycle Life≥800 Full Charge Cycles (Premium Longevity Calibration)
Warranty Period2-Year Factory Comprehensive Warranty

Discharge Options & Motor Compatibility

Continuous Peak Burst Recommended Motor Powertrain Power
30A Version 90A Burst Perfect for Mid-Drive Conversions / Hub Motors from 1000W up to 1800W
40A Version 120A Burst Perfect for Heavy-Duty High-Torque E-Bike Motors from 1800W up to 2400W
50A Version 150A Burst Optimized for Stealth Bomber Builds & Upgraded Controllers up to 3000W+

Configurable JBD Smart Bluetooth BMS Options

Match your high-voltage 1440Wh triangle pack perfectly to your setup. BOOANT offers three configurable, heavy-duty JBD Smart Bluetooth BMS current options, allowing you to choose the exact limit required for continuous discharge stability and thermal protection.

30A BMS Version

1800W Max

Optimized for motor outputs up to 1800W. The ideal high-efficiency choice for daily street commuting and standard mid-drive bicycle conversions.

40A BMS Version

2400W Max

Engineered for continuous motor outputs up to 2400W. Delivers punchier throttle response, faster hill-climbing torque, and elevated amp limits.

50A BMS Version

3000W Max

Calibrated for grueling continuous demands up to 3000W. The premier choice for high-velocity e-bikes, Stealth Bomber clones, and upgraded controllers.

Bluetooth App

JBD Link

Gain 24/7 wireless diagnostics. Check real-time total voltage, cell-by-cell balancing data, remaining capacity, and core temperatures via the official Xiaoxiang App.

Included 84V 5A High-Current Smart Fast Charger

Every battery kit includes our custom-matched BOOANT 84V 5A smart fast charger. Encased in a rugged, heat-dissipating aluminum alloy housing with an integrated cooling fan, it is fully engineered to top off your 1440Wh triangle pack safely and efficiently without overheating your Samsung cells.

420W Fast Charging

Pumps a continuous 5A output to fully charge your 20Ah Samsung vault from empty to 100% in approximately 4 hours, cutting standard garage downtime by 50%.

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Worldwide AC Input

Fully compliant with global 100–240V AC grid parameters. Delivers seamless charging versatility and reliability for international travel or cross-country overlands.

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Intelligent Safeties

Armed with active hardware-level cutoff loops to shield the charging stream from unexpected line voltage spikes, output short circuits, overheating, and reverse polarity backflows.

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LED Indicator Guide

Solid Red: Charging is active. (Note: Stays red if a loop fault occurs or if the JBD BMS cuts the input loop to protect the cells).

Solid Green: 100% fully balanced and charged, OR the charger is idling on standby (plugged into AC but unlinked to the battery).

Factory-Customized 10AWG Discharge Terminations

Eliminate messy adapters and minimize resistance. Every BOOANT 72V 20Ah triangle pack is pre-wired with ultra-flexible, heavy-gauge 10AWG silicone copper cables. Choose the exact connector that matches your speed controller to lock in a secure, high-current power connection straight out of the box.

XT60 Interface

Up to 60A Peak

Best for low-to-mid power setups, standard hub motors, or lightweight e-bike conversion kits running conservative continuous current draws.

XT90-S Anti-Spark

Up to 90A Peak

The industry gold standard for high-performance 72V builds. Features an integrated resistance loop that entirely kills scary electrical sparks when plugging into live controllers.

QS8-S Heavy Duty

Up to 120A+ Peak

Engineered for high-amp e-motorcycles, racing controllers, and aggressive full-throttle runs requiring zero heat build-up across the junction loops.

Anderson SB50

50A–150A Range

A rugged, solid-copper contact configuration trusted by custom EV go-kart racers, DIY robotics builders, and heavy-duty industrial project setups.

Triangle Geometry & Motor Applications

Unlock raw 72V power without throwing off your handling. Enclosed in a space-saving high-temperature PVC wrap, this 20Ah triangle battery is tailored to sit directly inside your frame corner—keeping the center of gravity low and perfectly balanced.

Center Frame Triangle Ebikes

Fits directly into mid-frame angles, keeping weight centralized for sharp, predictable dirt or street tracking.

E-Motorcycle Conversions

Supplies a steady, sag-free 72V baseline built to feed high-amp brushless setups and aggressive aftermarket controllers.

High-Power Hub & Mid-Drives

Perfectly handles massive, constant current draws for custom high-wattage bicycle builds looking to push velocity limits.

Enduro Off-Road Vehicles

Engineered with rugged internal scaffolding to survive continuous trail chatter, jumps, and hard landing impacts.

Custom Racing EV Projects

The definitive universal energy block for high-density DIY electric go-karts, mini-bikes, and heavy-duty robotics.

Sur-Ron & E-Moto Frameworks*

Functions as a lightweight, highly compact secondary auxiliary pack tailored for tight custom sub-frame geometry.

*Chassis Note: Fitment on standard Sur-Ron, Talaria, or bicycle frames depends entirely on verifying your internal frame space, corner edge clearance, and plug wiring alignment before purchase.

Before You Order: Rider Specs & FAQ

The 4 most critical details verifying fitment, safety, and compatibility.

Will this triangle pack fit my specific bike frame?

Frame shapes vary heavily. Please use a tape measure to check our pack dimensions (280×220×175mm with a 75mm thickness) against your frame cavity. Want 100% confirmation? Snap a side photo of your bike next to a tape measure and email it to us—our team will verify the fit loops for you.

Which JBD BMS amp option should I select?

Your choice must match your motor/controller continuous demand to prevent automatic safety cutoffs:

  • 30A BMS version: Tailored for commuter hub setups or mid-drive motors up to 1800W.
  • 40A BMS version: Engineered for intermediate setups and high-torque custom bike builds up to 2400W.
  • 50A BMS version: Calibrated explicitly for high-velocity builds and upgraded controllers up to 3000W+.
Are these genuine Samsung cells inside the core matrix?

Yes, 100%. This high-voltage framework is built exclusively with authentic, grade-A Samsung INR21700-50G high-density power cells. Every group undergoes strict factory capacity matching and internal resistance sorting before welding to ensure zero voltage drift and extended pack health nodes.

Do I need an adapter for my speed controller?

No adapters needed. Our factory pre-wires this battery with ultra-flexible, heavy-gauge 10AWG silicone copper cables. Simply select your pre-installed, gold-plated connector interface (XT60, XT90-S Anti-Spark, QS8-S, or Anderson SB50) in the dropdown to ensure a direct plug-and-play setup straight out of the box.