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Nexbat 80V 60Ah Battery for SurRon Ultra Bee
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SurRon Ultra Bee Upgrades: Nexbat Battery, Torp TC1000 Controller, Torp TM50 Motor, Sirris Suspension, Custom Wheels - Darwin EV
Nexbat 80V 60Ah Battery for SurRon Ultra Bee
Nexbat 72V 70Ah Battery: Surron Ultra Bee
Nexbat 72V 70Ah Battery: Surron Ultra Bee
SurRon Ultra Bee Upgrades: Nexbat Battery, Torp TC1000 Controller, Torp TM50 Motor
SurRon Ultra Bee Upgrades: Nexbat Battery, Torp TC1000 Controller, Torp TM50 Motor, Sirris Suspension, Custom Wheels - Darwin EV
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Nexbat 72V 70Ah Battery: Surron Ultra Bee

Vendor: Nexbat

Type: Battery

$3,215.00
$3,215.00
Shipping calculated at checkout.

Hurry up, only 9 items left in stock.

  • Lead Time: Ships in 45 days

Engineered to deliver exceptional sustained power, extended range, and strong low-end torque, the Nexbat 72V 70Ah Battery is a true stock-fit, high-capacity performance upgrade for the Surron Ultra Bee. Built using genuine Samsung 50S lithium-ion cells, this battery emphasizes energy capacity, discharge stability, and consistent output under load.

Designed for seamless integration with the stock controller and motor, as well as modern performance controllers and motors, the 72V 70Ah configuration is ideal for riders prioritizing endurance, reliability, and smooth high-current delivery without stepping into higher-voltage builds.

*The battery images shown represent the prototype model. The official release features a full color display.

Key Features

  • High-Capacity Architecture – Massive 70Ah configuration delivering exceptional energy storage and extended range.
  • Samsung 50S High-Performance Cells – Proven lithium platform known for stable output, efficiency, and long-term reliability.
  • Strong Sustained Output – Designed to maintain consistent current delivery during climbs, trail riding, and extended throttle use.
  • Balanced 72V Performance Platform – Emphasizes controllable torque, smooth power delivery, and drivetrain-friendly operation.
  • Integrated Smart BMS Protection – Supports safe high-current discharge and balanced cell management.
  • Stable Voltage Across Full Discharge – Predictable throttle response from full charge to low state-of-charge.
  • True Ultra Bee Factory Fitment – Clean installation within the stock battery compartment.
  • Compatible With Stock & High-Power Controllers – Built with heavy-duty, high-current wiring to support upgraded controller systems safely and efficiently.
  • Ideal for Long Rides & Endurance Builds – Best suited for riders who want extended range with strong, dependable power and performance.
True Stock Fitment
Direct drop-in for the Surron Ultra Bee. No lid extenders. No trimming. No height increase. Maintains full OEM battery compartment fit.
High-Capacity Design
Built for higher capacity compared to stock battery for extended range. Maintains consistent voltage and output across the full discharge.
Controller Compatibility
Fully compatible with both stock Ultra Bee and modern phase-based controllers, including EBMX X-9000 and Torp TC1000.

Nexbat 72V 70Ah Battery Specs
Model UB7270S
Cells Samsung 50S
Cell Configuration 20S14P
Energy (Watt Hours) 5040 Wh
Nominal Voltage 72V
Nominal Capacity 70Ah
Peak Output Current* 350A
Nominal Current (1C) 70A
Full Charge Peak Power 29.4 kW
Nominal Peak Power 25.2 kW
Max Charge 84V
Waterproof IP67 Rating
*Peak current ratings shown are conservative estimates based on controlled testing. Actual packs are capable of achieving higher peak current under optimal conditions (controller tuning, wiring, battery temperature, and SOC).
**Continuous output is dependent of cooling/airflow.

Compatibility

E-Moto: Surron Ultra Bee (all model years)

Controller: Stock OEM Ultra Bee / EBMX X-9000 / Torp TC1000

Motor: Compatible with stock Surron motor and aftermarket motors made for Ultra Bee

EBMX XUB-80 / Sotion FW01 Pro / Torp TM50

Charger: Requires 72V Surron Ultra Bee Battery Charger (add-on available)

Battery Disclaimer ▾

Darwin EV Terms and Conditions

Liability Waiver: By purchasing this product, you accept full responsibility for any damage or harmful consequences that may result from the product. You understand that you waive the right to sue and seek compensation for damages that may arise from the use of the product in question, regardless of whether the product has been used properly or misused. You also acknowledge that all products created, manufactured, or distributed by Darwin EV, LLC are provided on the condition that its users accept full responsibility for any ill effects the product may cause.

Product Servicing: Darwin EV, LLC products are built to last. We stand behind the quality of our batteries and will address any manufacturer-related issues. Upon purchase, the customer agrees to take all safety precautions when operating and caring for their product, including maintenance and proper storage of lithium-ion battery packs.

Battery Maintenance: Store in a dry place. When not riding for long periods, keep battery charge between 50% and 80%. For best results, always charge after riding — do not store a depleted battery.

Handling of Lithium-ion Battery Cells – Risks and Precautions: Misusing or mishandling lithium-ion batteries can pose a serious risk of personal injury, property damage, or death. Batteries may explode, burn, or cause a fire if misused or mishandled. Only use with proper circuitry in a protected battery pack. Only use within manufacturers’ listed specifications.

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Shipping Policy: Shipping and processing times can vary, depending on the
product. Most orders ship within 1 day and take about 1-4 days in
transit when shipped within the continental United States. Cut-off time:
4:00pm PT (7:00pm ET) Monday – Saturday.

Lead Times: Some products have lead times to allow for processing and/or clearance, in addition to transit times. It is possible to receive your items sooner. Here are our official lead times for the following product types:

  • EWatt Batteries, Lids, Chargers: 10 days
  • Forks, Shocks: 5 days
  • Custom Wheel Sets: 21 days

Signature Required: Shipping of high-value items requires a signature from an adult (18+). Without a signed delivery receipt, the driver will be unable to complete the delivery.

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Return Policy: We accept returns on new, unused batteries in original packaging. All battery sales outside the lower 48 states (US) are final and cannot be refunded or returned. Returns must be initiated within 30 days from the date of purchase. Eligible returns must be made by mail. Upon approved request, a return label will be made available for download to print, free of charge. Refund processing may take up to 7 days. Returns are subject to banking processing fees.

Restocking Fee: There is a 25% restocking fee for any battery returns and any battery order cancellations made after 72 hours of purchase.