From Requirement to Delivery: Benergy Custom Develops a 72V 20Ah Lithium Battery for an Electric Scooters

March 22, 2026 – A Clear Requirement Arrives

On March 22, 2026, Benergy received a technical inquiry from an overseas customer:
a lithium battery 72V 20Ah for electric scooters, with strict size limitations.

The battery had to fit into a compact, pre-defined scooter battery compartment, leaving almost no room for standard off-the-shelf solutions.

This was clearly a custom development project, not a simple product selection.

Step 1 – Feasibility Analysis and Initial Proposal

Within 48 hours, Benergy’s engineering team evaluated:

• available cell form factors (cylindrical / prismatic / pouch)

• series/parallel configuration for 72V nominal voltage

• continuous and peak discharge current requirements

• mechanical integration with the scooter chassis

We proposed an initial battery pack design using high-quality cells, balancing energy density and thermal safety.

🔋 The customer did not initially specify chemistry — but given the size limits and safety expectations, we recommended evaluating a LiFePO4 battery option where space permits, or high-rate NMC for compact layouts.

Step 2 – Multiple Design Revisions and Connector Finalization

From late March to mid-April 2026, Benergy worked closely with the customer through several rounds of design revisions.

Key discussion points included:

• overall pack dimensions (matching the scooter’s battery cavity)

• cell arrangement and busbar layout

• BMS protection parameters (overcharge, over-discharge, short circuit, temperature)

• connector type – finally confirmed after mechanical fit tests

• optional Bluetooth and CAN/UART communication

Each revision was documented with updated mechanical drawings and electrical schematics, ensuring no ambiguity before mass production.

Step 3 – Order Placement and Production Start

On April 28, 2026, the customer officially placed the purchase order.

The frozen design included:

• 72V 20Ah nominal capacity

• confirmed connector interface

• BMS with cell balancing and protection

• final mechanical enclosure (metal / ABS / customized)

Immediately after order confirmation, Benergy released the BOM and production workflow to the factory floor.

Step 4 – Production Completed and Customer Notified

Benergy strictly follows process-controlled manufacturing, including:

• cell grading (capacity / internal resistance matching)

• automatic spot welding

• semi-finished aging test

• final functional test (voltage, capacity, communication, protection threshold verification)

After all quality checks passed, production of the 72V 20Ah battery pack was completed, and photos were sent to the customer for final visual confirmation.

Why Customers Choose Benergy for Custom 72V Batteries

This project is a typical example of why engineered battery solutions require more than just “selling cells”.

Benergy brings:

✅ fast requirement-to-proposal turnaround
✅ clear design documentation (drawings + specs)
✅ full traceability from cell to pack
✅ compliance-ready (CE, RoHS, REACH upon request)
✅ flexible chemistry options — including LiFePO4 battery for longer cycle life and higher safety

Whether you need a lithium battery 72V for scooters, motorcycles, or industrial equipment, Benergy can deliver a tailored, reliable, and production-ready battery pack.

Start Your Own Custom Battery Project

From 72V 20Ah to higher voltage and capacity, Benergy supports:

• electric scooters / e-motorcycles

• low-speed electric vehicles

• robotics and industrial equipment

• energy storage systems

📩 Contact us today for a free initial design assessment — typically within 3–5 business days.

Article published: May 2026