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Home / Products / 36V 40Ah Metal Case eBike Battery | Samsung 50G · JBD Smart BMS
BOOANT 36V 40Ah metal case lithium ebike battery pack with Samsung 21700 cells, heavy-duty handle, Anderson connector, and smart Bluetooth BMS.
Dimensions and weight diagram for BOOANT 36V 40Ah metal case ebike battery showing 300x190x90 mm size and approx 8 kg 17.64 lb weight.
Rear view of the BOOANT 36V 40Ah metal case ebike battery pack on a white background, featuring a yellow warning sticker, folding handle, and hanging gray Anderson connector.
Horizontal side view of the BOOANT 36V 40Ah metal case ebike battery pack (image_10.png) lying on a white background, highlighting its color LCD display screen, folding carry handle, AC socket, and gray Anderson connector with red/black wires.
Free fireproof and water-resistant LiPo Guard battery bag for safe ebike battery storage and carrying, featuring durable handles and reflective stripes.
42V 5A smart rapid charger for BOOANT 36V ebike battery featuring an aluminum shell, active cooling fan, dual LED status indicators, and 100V-240V AC input.
BOOANT 36V 40Ah metal case lithium ebike battery connected to an aluminum 42V 5A smart fast charger, featuring a top folding handle and gray Anderson discharge connector.
Package contents for BOOANT 36V 40Ah metal case ebike battery including explosion-proof bag, 42V 5A charger, Anderson extension cable, and AC power cord.
BOOANT 36V 40Ah metal case lithium ebike battery pack with Samsung 21700 cells, heavy-duty handle, Anderson connector, and smart Bluetooth BMS.
Dimensions and weight diagram for BOOANT 36V 40Ah metal case ebike battery showing 300x190x90 mm size and approx 8 kg 17.64 lb weight.
Rear view of the BOOANT 36V 40Ah metal case ebike battery pack on a white background, featuring a yellow warning sticker, folding handle, and hanging gray Anderson connector.
Horizontal side view of the BOOANT 36V 40Ah metal case ebike battery pack (image_10.png) lying on a white background, highlighting its color LCD display screen, folding carry handle, AC socket, and gray Anderson connector with red/black wires.
Free fireproof and water-resistant LiPo Guard battery bag for safe ebike battery storage and carrying, featuring durable handles and reflective stripes.
42V 5A smart rapid charger for BOOANT 36V ebike battery featuring an aluminum shell, active cooling fan, dual LED status indicators, and 100V-240V AC input.
BOOANT 36V 40Ah metal case lithium ebike battery connected to an aluminum 42V 5A smart fast charger, featuring a top folding handle and gray Anderson discharge connector.
Package contents for BOOANT 36V 40Ah metal case ebike battery including explosion-proof bag, 42V 5A charger, Anderson extension cable, and AC power cord.
BOOANT 36V 40Ah metal case lithium ebike battery pack with Samsung 21700 cells, heavy-duty handle, Anderson connector, and smart Bluetooth BMS.
Dimensions and weight diagram for BOOANT 36V 40Ah metal case ebike battery showing 300x190x90 mm size and approx 8 kg 17.64 lb weight.
Rear view of the BOOANT 36V 40Ah metal case ebike battery pack on a white background, featuring a yellow warning sticker, folding handle, and hanging gray Anderson connector.
Horizontal side view of the BOOANT 36V 40Ah metal case ebike battery pack (image_10.png) lying on a white background, highlighting its color LCD display screen, folding carry handle, AC socket, and gray Anderson connector with red/black wires.
Free fireproof and water-resistant LiPo Guard battery bag for safe ebike battery storage and carrying, featuring durable handles and reflective stripes.
42V 5A smart rapid charger for BOOANT 36V ebike battery featuring an aluminum shell, active cooling fan, dual LED status indicators, and 100V-240V AC input.
BOOANT 36V 40Ah metal case lithium ebike battery connected to an aluminum 42V 5A smart fast charger, featuring a top folding handle and gray Anderson discharge connector.
Package contents for BOOANT 36V 40Ah metal case ebike battery including explosion-proof bag, 42V 5A charger, Anderson extension cable, and AC power cord.
BOOANT 36V 40Ah metal case lithium ebike battery pack with Samsung 21700 cells, heavy-duty handle, Anderson connector, and smart Bluetooth BMS.
Dimensions and weight diagram for BOOANT 36V 40Ah metal case ebike battery showing 300x190x90 mm size and approx 8 kg 17.64 lb weight.
Rear view of the BOOANT 36V 40Ah metal case ebike battery pack on a white background, featuring a yellow warning sticker, folding handle, and hanging gray Anderson connector.
Horizontal side view of the BOOANT 36V 40Ah metal case ebike battery pack (image_10.png) lying on a white background, highlighting its color LCD display screen, folding carry handle, AC socket, and gray Anderson connector with red/black wires.
Free fireproof and water-resistant LiPo Guard battery bag for safe ebike battery storage and carrying, featuring durable handles and reflective stripes.
42V 5A smart rapid charger for BOOANT 36V ebike battery featuring an aluminum shell, active cooling fan, dual LED status indicators, and 100V-240V AC input.
BOOANT 36V 40Ah metal case lithium ebike battery connected to an aluminum 42V 5A smart fast charger, featuring a top folding handle and gray Anderson discharge connector.
Package contents for BOOANT 36V 40Ah metal case ebike battery including explosion-proof bag, 42V 5A charger, Anderson extension cable, and AC power cord.

36V 40Ah Metal Case eBike Battery | Samsung 50G · JBD Smart BMS

$739.99

Free Shipping + Duties Included
Built Fresh To Order
2-Year Warranty
  • Samsung 21700 50G (1,440Wh) : 10S8P setup with 80 genuine cells for real 40Ah capacity and low voltage sag.
  • Smart JBD Bluetooth BMS : Choose 30A (1000W) or 50A (1500W). Live cell tracking and remote switch via phone app.
  • Metal Case & Screen : Stamped metal box with internal EVA shock foam, sealed potting, and top digital display.
  • 42V 5A Fast Charger : Aluminum fan-cooled charger delivers a balanced 8–9h charge without cooking the cells.
  • Built Fresh to Order : Custom built and cycle-tested per order. Includes a 2-year warranty and duty-paid delivery.
Motor Power & BMS
Up to 1000W / 30A BMS
Up to 1500W / 50A BMS
Discharge Connector
XT60F/M
XT90F/M
Anderson
Wire only
Motor Power & BMS
Discharge Connector
Product Datasheet
Specs, dimensions and charging
BOOANT Power In Action
Real tests, setups and riding

36V 40Ah Metal Case Battery

Engineered for high-mileage e-bikes and cargo builds. Built around authentic Samsung 21700 cells inside a sealed metal case.

1,440Wh
Total Energy
True 40Ah capacity. Maximum range per charge.
50G
Samsung Cells
Genuine 10S8P layout with 80 original 21700 cells.
Metal
Metal Case
Formed metal casing lined with EVA foam & sealed potting.
Smart
JBD BMS
Integrated Bluetooth app control & cell balancing.

On-Pack Digital Screen

Shows real-time voltage, remaining percent, temp, and charge bar at a glance.

42V 5A Fast Charger

Aluminum fan-cooled charger delivers full recharge in 8–9 hrs without thermal stress.

Heavy-Duty 10AWG Wiring

Low-resistance silicone cables handle high continuous current with zero heat build-up.

Full Weather & Shock Sealing

Internally potted to resist gravel impacts, road wash, and all-weather moisture.

Technical Specifications

Electrical & Performance
Nominal Voltage & Capacity 36V / 40Ah (1,440Wh)
Cell Model & Configuration Samsung INR21700-50G (10S8P, 80 Cells Total)
Voltage Working Range 30.0V (Cutoff) – 42.0V (Full Charge)
Matched Smart Charger 42V 5A CC/CV | ~8–9 Hours Full Charge
Physical & Build Specs
Dimensions (L × W × H) 300 × 190 × 90 mm (11.8 × 7.5 × 3.5 in)
Pack Weight Approx. 8.0 kg (17.6 lbs)
Enclosure Construction Coated Sheet Metal Case | Internal Shock Foam & Waterproof Sealant
Onboard Display Top Screen: Live Voltage, State of Charge (%), Temp, Charge Status
BMS, Thermal & Warranty
Management System Smart JBD BMS with Bluetooth App Connectivity
Operating Temperature Discharge: -20°C to 60°C (-4°F to 140°F) | Charge: 0°C to 45°C (32°F to 113°F)
Storage Temperature -10°C to 35°C (14°F to 95°F) at 50% SOC recommended
Warranty Coverage 2-Year Limited Warranty against manufacturing defects

Fitment Notice: Handcrafted internal potting and shock foam create slight craft tolerances. Please allow a slight buffer in your frame or mounting tray.

Smart JBD BMS & Motor Match

Select your discharge rating based on your motor and hill requirements.

CRUISING Up to 1000W
70 – 100+ Miles
Est. Range (~110–160+ km) with Assist
  • Continuous Output 30A
  • Peak Output (Burst) 90A
  • Cell Load (10S8P) ~3.75A / cell

Best for: Commuting, flat roads & maximum battery range.

HIGH TORQUE Up to 1500W
50 – 80+ Miles
Est. Range (~80–130+ km) Mixed Riding
  • Continuous Output 50A
  • Peak Output (Burst) 150A
  • Cell Load (10S8P) ~6.25A / cell

Best for: Heavy cargo, steep hills & full throttle riding.

Range Variables: Actual range depends on total weight, tire pressure, cruising speed, and hill grade.

42V 5A Fast Charger

Matched CC/CV profile for this 40Ah pack. Delivers a steady full charge in roughly 8–9 hours without thermal strain.

Rate: 42.0V / 5.0A
Input: 100–240V AC
Curve: CC/CV
Solid Red Light

Charging in progress or internal diagnostic error detected.

Solid Green Light

Pack fully charged. Auto-cutoff cuts current to protect cell chemistry.

All-Metal Casing

Rugged aluminum shell built for workshop use. Dissipates heat naturally.

Active Cooling Fan

Quiet internal forced-air fan keeps components cool under steady 5A current.

Dual Replaceable Fuses

250V AC input fuse and 250V/10A DC output fuse shield against power spikes.

AC Power Socket

Standard grounded 3-pin receptacle compatible with standard US/EU cables.

Fulfillment & Quality Control

Built-To-Order & Shipping Standard

We build every pack fresh per order to maximize cell chemistry and test every unit thoroughly before dispatch.

01

Fresh Build Per Order

Zero dead shelf inventory. Every battery is welded fresh upon order using genuine Grade-A Samsung 21700 cells for peak initial capacity.

02

Full Cycle Verification

Each assembled pack undergoes a complete charge and discharge test. We verify true Ah capacity, Smart BMS balancing, and thermal limits before sealing.

03

Duty-Paid Air Freight

Shipped via FedEx/UPS (US/CA) or DPD/DHL (EU) in 15–20 business days. All import customs clearance and doorstep delivery duties are fully covered.