Nexbat 72V Sur-Ron Battery Features

True Stock Fitment — no extended cover required
Peak Output: 350A+ (Samsung 50S) / 450A+ (Molicel P50B)
600A Integrated Smart BMS
High Continuous Output Capability
Stable Voltage Across Full Discharge
Heavy-Duty 6 AWG Power Leads
Full Color Digital Display
Compatible with Modern Phase-Based Controllers:
- EBMX X-9000 / Torp TC1000 / Nucular P24F

Available Configurations:

Standard Pack

Samsung 50S cells
Peak output: 350A+
Optimized for balanced power and range

Pro Pack

Molicel P50B cells
Peak output: 450A+
Optimized for maximum power and thermal stability under extreme load

True Stock Fitment
Fits the stock Sur-Ron Light Bee battery compartment. No tall packs, no cover extensions — proper fitment and clean install.

High-Performance Design
Built for sustained high current and aggressive riding. Maintains consistent voltage and output across the full discharge.

Controller Compatibility
Fully compatible with modern phase-based controllers, including EBMX X-9000, Torp TC1000, and Nucular P24F.

Nexbat 72V 50Ah Battery Specs
	Nexbat 72V 50Ah	Nexbat 72V 50Ah Pro
Model	LB7250S	LB7250P
Cells	Samsung 50S	Molicel P50B
Cell Configuration	20s10p	20s10p
Nominal Voltage	72V	72V
Nominal Capacity	50Ah	50Ah
Peak Output Current*	350A+	450A+
Nominal Peak Power	25.2 kW	32.4 kW
Full Charge Peak Power	29.4 kW	37.8 kW
BMS Rating	600A smart BMS	600A smart BMS
Continuous Output**	250A+	250A+
Max Charge	84V	84V
Power Leads	6 AWG	6 AWG
Waterproof	IP67 Rating	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: Sur-Ron Light Bee X/S, Segway X160/X260 (all model years)

Controller: Requires aftermarket controller upgrade

EBMX X-9000 / Torp TC1000 / Nucular P24F

Motor: Compatible with stock Sur-Ron motor and aftermarket motors made for Light Bee

EBMX XLB-60 Core / XLB-60 Race / Torp TM25 / TM40 / Sotion FW01

Charger: Requires Nexbat 72V Sur-Ron LBX Fast Charger

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.

Restocking Fee: There is a 20% restocking fee for any battery order cancellation.

⸻

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.

⸻

Return Policy: We accept returns on new, unused products in original packaging. 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 Fees: A 20% restocking fee is applied to battery order cancellations or returns.