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Home / Products / 72V 20Ah Triangle eBike Battery | Samsung 50G Cells
BOOANT 72V 20Ah triangle ebike lithium battery pack in rugged ABS hard case featuring smart Bluetooth BMS, master power switch, LED battery indicator, and frame mounting straps.
BOOANT 72V 20Ah triangle ebike battery pack back-angle perspective showcasing heavy-duty frame velcro straps, charging port, USB output, and safety warning labels.
BOOANT 72V 20Ah ABS triangle ebike battery dimensions diagram showing 375mm length, 235mm height, 410mm hypotenuse, 90mm width, and approx 7kg net weight.
BOOANT 72V 20Ah triangle ebike battery pack in durable ABS hard case featuring side branding, power switch, LED gauge, Bluetooth indicator, and XT90 discharge cable.
BOOANT 72V 20Ah triangle ebike battery pack rear side view featuring waterproof charging port, USB output, safety warning labels, and XT90 discharge connector.
BOOANT 84V 5A aluminum smart fast charger with 3-pin XLR connector, cooling vents, and multi-protection system for 72V lithium ebike battery packs.
BOOANT 72V 20Ah triangle ebike battery in black ABS hard case connected to the 84V 5A aluminum fast smart charger via 3-pin charging port.
BOOANT 72V 20Ah triangle ebike battery package list showing the ABS hard case battery, 84V 5A fast charger, AC power cable, XT90 extension cable, and frame mounting velcro straps.
BOOANT 72V 20Ah triangle ebike lithium battery pack in rugged ABS hard case featuring smart Bluetooth BMS, master power switch, LED battery indicator, and frame mounting straps.
BOOANT 72V 20Ah triangle ebike battery pack back-angle perspective showcasing heavy-duty frame velcro straps, charging port, USB output, and safety warning labels.
BOOANT 72V 20Ah ABS triangle ebike battery dimensions diagram showing 375mm length, 235mm height, 410mm hypotenuse, 90mm width, and approx 7kg net weight.
BOOANT 72V 20Ah triangle ebike battery pack in durable ABS hard case featuring side branding, power switch, LED gauge, Bluetooth indicator, and XT90 discharge cable.
BOOANT 72V 20Ah triangle ebike battery pack rear side view featuring waterproof charging port, USB output, safety warning labels, and XT90 discharge connector.
BOOANT 84V 5A aluminum smart fast charger with 3-pin XLR connector, cooling vents, and multi-protection system for 72V lithium ebike battery packs.
BOOANT 72V 20Ah triangle ebike battery in black ABS hard case connected to the 84V 5A aluminum fast smart charger via 3-pin charging port.
BOOANT 72V 20Ah triangle ebike battery package list showing the ABS hard case battery, 84V 5A fast charger, AC power cable, XT90 extension cable, and frame mounting velcro straps.
BOOANT 72V 20Ah triangle ebike lithium battery pack in rugged ABS hard case featuring smart Bluetooth BMS, master power switch, LED battery indicator, and frame mounting straps.
BOOANT 72V 20Ah triangle ebike battery pack back-angle perspective showcasing heavy-duty frame velcro straps, charging port, USB output, and safety warning labels.
BOOANT 72V 20Ah ABS triangle ebike battery dimensions diagram showing 375mm length, 235mm height, 410mm hypotenuse, 90mm width, and approx 7kg net weight.
BOOANT 72V 20Ah triangle ebike battery pack in durable ABS hard case featuring side branding, power switch, LED gauge, Bluetooth indicator, and XT90 discharge cable.
BOOANT 72V 20Ah triangle ebike battery pack rear side view featuring waterproof charging port, USB output, safety warning labels, and XT90 discharge connector.
BOOANT 84V 5A aluminum smart fast charger with 3-pin XLR connector, cooling vents, and multi-protection system for 72V lithium ebike battery packs.
BOOANT 72V 20Ah triangle ebike battery in black ABS hard case connected to the 84V 5A aluminum fast smart charger via 3-pin charging port.
BOOANT 72V 20Ah triangle ebike battery package list showing the ABS hard case battery, 84V 5A fast charger, AC power cable, XT90 extension cable, and frame mounting velcro straps.
BOOANT 72V 20Ah triangle ebike lithium battery pack in rugged ABS hard case featuring smart Bluetooth BMS, master power switch, LED battery indicator, and frame mounting straps.
BOOANT 72V 20Ah triangle ebike battery pack back-angle perspective showcasing heavy-duty frame velcro straps, charging port, USB output, and safety warning labels.
BOOANT 72V 20Ah ABS triangle ebike battery dimensions diagram showing 375mm length, 235mm height, 410mm hypotenuse, 90mm width, and approx 7kg net weight.
BOOANT 72V 20Ah triangle ebike battery pack in durable ABS hard case featuring side branding, power switch, LED gauge, Bluetooth indicator, and XT90 discharge cable.
BOOANT 72V 20Ah triangle ebike battery pack rear side view featuring waterproof charging port, USB output, safety warning labels, and XT90 discharge connector.
BOOANT 84V 5A aluminum smart fast charger with 3-pin XLR connector, cooling vents, and multi-protection system for 72V lithium ebike battery packs.
BOOANT 72V 20Ah triangle ebike battery in black ABS hard case connected to the 84V 5A aluminum fast smart charger via 3-pin charging port.
BOOANT 72V 20Ah triangle ebike battery package list showing the ABS hard case battery, 84V 5A fast charger, AC power cable, XT90 extension cable, and frame mounting velcro straps.

72V 20Ah Triangle eBike Battery | Samsung 50G Cells

$729.99

Free Shipping + Duties Included
Built Fresh To Order
2-Year Full Warranty
  • Samsung 21700 50G Cells (1440Wh Energy) : Built with 80 genuine Grade-A Samsung 50G cells in a 20S4P setup, delivering solid hill-climbing power and zero premature voltage sag on high-demand rides.
  • Smart JBD Bluetooth BMS Protection : Monitor real-time individual cell voltages, pack temperature, and battery life directly from your phone app, with remote charging and discharge safety shut-off.
  • Matched Continuous Power for 1000W–3000W Motors : Available in 30A, 40A, and 50A continuous BMS options (up to 150A peak) to match your custom e-bike controller and eliminate high-throttle cut-offs.
  • Rugged ABS Hard Shell with Onboard 5V USB : Heavy-duty molded triangle case shields cells from trail impacts and water splashes, featuring an LED battery fuel gauge, power switch, and a 5V USB port for phone charging.
  • Includes 84V 5A Smart Fast Charger & 2-Year Warranty : Fast CC/CV charger cuts downtime in half with a quick 4-hour full charge, backed by an active cooling fan and a hassle-free 2-year warranty.
BMS Discharge Current (Select Motor Power)
30A | Up to 1000W–1800W
40A | Up to 1800W–2400W
50A | Up to 2400W–3000W
Output Connector
XT60F/M
XT90F/M
QS8 plug
Anderson
Wire only
BMS Discharge Current (Select Motor Power)
Output Connector
🎬
BOOANT Power In Action Watch real tests, setups & riding videos

72V 20Ah Triangle E-Bike Battery

Built for high-power frame triangle setups. Powered by 80 authentic Samsung 21700 cells and managed by a smart Bluetooth BMS for steady throttle response, minimal voltage drop, and extended ride range.

72V
Nominal Voltage
20Ah
Capacity (1440Wh)
80Pcs
Samsung 21700 50G
5A
84V Fast Charger
Samsung 50G Cells

80 authentic 21700 cells in 20S4P. Sustains heavy throttle with low heat and zero premature sag.

Smart JBD Bluetooth BMS

Track cell balance and temperature on your phone. Turn charging and discharge ports on or off instantly.

Rugged ABS Triangle Case

Molded hard shell protects against impacts and trail vibrations. Fits cleanly inside the bike frame.

LED Gauge & 5V USB Port

Check remaining capacity with the push-button LED meter. Built-in USB keeps your phone or GPS charged.

Technical Specifications

Electrical & Battery Configuration
Nominal Voltage / Capacity 72V / 20Ah (1440Wh)
Cell Model & Configuration Samsung INR21700-50G / 20S4P (80 Cells)
BMS Management Smart JBD Bluetooth BMS (iOS / Android App)
Standard Charger 84V 5A Smart Fast Charger (Input: 100V-240V AC)
Charge Cut-off / Discharge Cut-off 84.0V / 60.0V
Cycle Life ≥ 800 Full Cycles (Maintains ≥ 80% Capacity)
Physical & Hardware Design
Dimensions (L x H x Hyp x W) 375 x 235 x 410 x 90 mm
14.76 x 9.25 x 16.14 x 3.54 in
Net Weight Approx. 7.0 kg (15.4 lbs)
Casing Material High-Impact ABS Molded Triangle Case
Onboard Interfaces LED Power Switch, Battery Fuel Gauge, 5V USB Port
Operating Environment & Warranty
Operating Charge Temp. 0°C to 45°C (32°F to 113°F)
Operating Discharge Temp. -20°C to 60°C (-4°F to 140°F)
Optimal Storage Temp. 10°C to 30°C (50°F to 86°F) | 50%-70% SOC
Manufacturer Warranty 2-Year Limited Warranty

Smart JBD BMS & Motor Matching

Choose the continuous BMS discharge rating that matches your controller and hub motor setup. All options integrate genuine JBD smart Bluetooth protection.

30A
Balanced
Recommended Motor
1000W – 1800W Motors
Peak Discharge Current
90A (Instant Cut-off)
Estimated Real-World Range
35 – 55 Miles (55 – 90 km)
40A
High Torque
Recommended Motor
1800W – 2400W Motors
Peak Discharge Current
120A (Instant Cut-off)
Estimated Real-World Range
28 – 45 Miles (45 – 72 km)
50A
Extreme Power
Recommended Motor
2400W – 3000W Motors
Peak Discharge Current
150A (Instant Cut-off)
Estimated Real-World Range
22 – 38 Miles (35 – 60 km)
Estimated Range Note:

Estimated range figures are based on mixed throttle and pedal assist under flat road testing with a 165 lbs (75 kg) rider. Actual riding distance varies depending on rider weight, cruising speed, hill gradients, wind resistance, and tire pressure.

84V 5A Smart Fast Charger

Every 72V 20Ah pack comes standard with an upgraded 84V 5A intelligent fast charger, cutting your charge time almost in half compared to stock 2A or 3A chargers.

84V
Cut-off Voltage
5A
Output Current
~4Hrs
Full Charge Time (0-100%)
CC/CV
Smart Charging Curve
High-Efficiency Fast Charging

Delivers a constant 5A current. Fully juices your 1440Wh pack in roughly 4 to 4.5 hours for quick turnaround between rides.

Automatic CC/CV Cut-Off

Transitions smoothly from constant current to constant voltage. Automatically halts charging once full to prevent cell stress.

Active Fan & Aluminum Shell

Built with a sturdy aluminum housing and a quiet internal cooling fan to keep operating temperatures low and stable.

Dual-Color LED Status

Solid Red indicates active fast charging; solid Green confirms the battery is 100% topped off and ready to hit the trail.

Input Voltage: 100V–240V AC (50/60Hz) Worldwide Compatible
Protection: Over-Voltage, Over-Current, Short-Circuit, Reverse Polarity

FAQ

Quick, real-world answers to help you choose the right setup, check frame fitment, and get the best performance out of your 72V triangle pack.

How do I know if this triangle battery will fit inside my bike frame?
The casing dimensions are 375 mm (Length) x 235 mm (Height) x 410 mm (Hypotenuse) x 90 mm (Thickness). We strongly suggest cutting out a cardboard template matching these dimensions and testing it inside your bike frame’s triangle space. Make sure you leave at least 10–15 mm of clearance around the edges for the mounting straps and rear shock movement.
Which BMS option should I choose: 30A, 40A, or 50A?
Match the BMS to your controller’s maximum continuous current limit. If your motor controller is rated up to 1800W, choose 30A. For 1800W to 2400W setups, choose 40A. If you run a high-output 2400W to 3000W controller, pick 50A. Picking a higher BMS rating prevents sudden power cut-offs when pushing full throttle on steep climbs.
How does the Smart Bluetooth BMS app work?
Download the free JBD / Xiaoxiang BMS App (available for iOS and Android). Turn on Bluetooth on your phone, open the app, and select your battery. You will see real-time data for individual cell voltages, pack temperature, remaining percentage, and cycle count. You can also toggle the charge and discharge switches remotely for added storage safety.
Does the included 5A fast charger degrade the Samsung 50G cells faster?
No. This battery uses a 4-parallel (4P) group of authentic Samsung 21700 50G cells. A 5A charging current distributes to only 1.25A per cell group, which is well below Samsung’s official standard charge rate (up to 2.45A per cell). It fills the pack in about 4 hours safely without generating excess heat or cutting cycle life short.
Is this ABS hard shell waterproof for riding in the rain?
The sealed ABS hard shell easily handles light rain, road puddles, and trail mud splashes. However, like all high-voltage e-bike batteries, it should never be submerged in water or cleaned with a high-pressure power washer. Make sure the rubber dust cap on the 5V USB and charging port is firmly closed when riding in damp conditions.
How should I store the battery during the winter offseason?
Do not store the battery completely empty or 100% full. Charge it to around 50% to 70% capacity (approx. 74V–76V on the app) and store it indoors in a dry area between 10°C and 25°C (50°F–77°F). Give it a 30-minute top-up every 60 to 90 days to prevent the BMS parasitic drain from over-discharging the cells.