Personal Electric Scooter Case Study

Features & Benefits:

Module:

High cycle life (4500 cycles to 80% DOD as a module) for low total cost of ownership
Twice the runtime as the previous NiMH battery
Reliable electronics and firmware
Inherently safe lithium ion chemistry
Robust mechanical design
Flame retardant plastics to UL-94V0

Battery Pack :

Paralleled for safety redundancy
Internal Battery Management System (BMS) communicates with vehicle
Automatic protection and balancing by BMS

Technical Specifications:

Nominal Voltage: 73.6 V
Nominal Capacity (C/5, 23°C): 5.6 Ah, 412 Wh
Weight (approx.) for 2 module system: 10.3 kg / 22.7 lbs total
Dimension incl. Terminals WxLxH: 191.15 mm x 358.89 mm x 66.6 mm

An innovative and leading manufacturer of electric personal vehicles contacted Valence (now part of Lithion Battery) to develop a robust power source for their vehicle. Their requirements for the battery included:

The technology must be a safe phosphate-type
High cycle life and light battery
Must be able to handle high vibration
Must handle violent jolts and jumps
Custom battery system with BMS built-in
Module design must be strong
Fast and safe recharging

Our design far exceeded the prismatic cell options the company had previously evaluated. Each vehicle utilizes 2 custom modules, and is now delivering a reliable power source for up to 24 miles on a single charge.