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EV Jr Dragster Parts/News

MLe Sponsors Journey Morell

MLe is proud to sponsor Journey Morell for the 2024-2025 seasons. Journey is an amazing young driver and we are excited to see what our new battery system can provide for her car to improve performance, consistency, and most importantly, SAFETY!  Journey's car will align with all the proposed NHRA rule changes for 2024

For BMS Orders Please Email orders@mleracecars.com

If you are interested in a BMS for NHRA Jr Dragster rule compliance, please email immediately.

These systems will be built on a first-come-first-served basis.  Currently, we are the only approved BMS on the market.  We have worked with our JR family to make this a plug-and-play system.  This will help protect your battery while charging and automatically turn off your charger when properly installed.  Includes a preconfigured wiring harness for your car.  All systems are preconfigured and tested on a Lonestar battery before being shipped out!

MLe Race Cars, LLC

833-EVRACER (833-387-2237)

Basic Battery Management System #BMSBasic

$2050 for either the MLe Battery Basic BMS or the Lonestar Battery Basic BMS

MLe Race Cars and AEMev have worked together to provide a preprogrammed BMS for Jr Dragsters.  This system can be used with the MLe Race Cars battery systems, or it can be retrofitted onto existing EV Jr Dragsters.

The retrofit kit, seen here, comes prewired to plug into the DB37 connector provided with the standard Jr Dragster battery.  Every system will be assembled and pretested at MLe’s facility to ensure proper operation. 


The system will:


  • Monitor each parallel cell group for voltage
  • Preset limits for voltage high and low
  • Control the charger 
  • Turn the charger on and off in relation to individual cell voltages
  • Control the charge rate and top off the charge with a CAN-controlled charger
  • Monitor cell temperatures (up to 6 points per box), if an MLe battery is used (not available with Lonestar battery)
  • Control the “Battery Safety Indicator Light” function and turn LEDs red or green, as needed




System Includes

  • AEMev BMS Master Board
  • AEMev BMS Satellite Board
  • AEMev Mini VCU Controller
  • LED Bicolor LED Light
  • Switches, Relays, and Wiring to Control System
  • Bracket to Mount System to Seatback or Battery Box

Battery Management System with Data Logging Dash #BMSDash

$3350 Available for MLe Battery System or Lonestar Battery System

This is our flagship BMS system!  This system integrates AEM’s logger dash to allow for datalogging of cell voltages and temperatures (if applicable) during the run.  Giving you the ability to review cell data and look for outlying cells, providing you the ultimate in battery safety information!

Plus, you don’t need a PC to monitor cell voltages during charging and you can quickly monitor voltages even in the staging lanes to ensure the safety of your driver/car before the run!

When used with MLe’s battery system, the bracket to the battery provides offboard charging with FULL BMS SAFETY functionality.

MLe Race Cars and AEMev have worked together to provide a preprogrammed BMS for Jr Dragsters.  The system is included with MLe Race Cars battery system and can be retrofitted onto existing EV Jr Dragsters.

The retrofit kit comes prewired to plug into the DB37 connector provided with the standard Jr Dragster battery.  Every system will be assembled and pretested at MLe’s facility on an actual Lonestar battery system to ensure proper operation. 


The system will:


  • Monitor each parallel cell group for voltage!
  • Preset limits for voltage high/low
  • Charger control 
  • Turn on/off charger in relation to individual cell voltage
  • Control charge rate and top of charge with CAN controlled charger
  • Monitor cell temperature (up to 6 points in box) if MLe Battery (not available with Lonestar battery)
  • Control “Battery Safety Indicator Light” function and turn LED red or green as needed



System Includes

  • AEMev BMS Master Board
  • AEMev BMS Satellite Board
  • AEMev Mini VCU Controller
  • LED Bicolor LED Light
  • Switches, Relays, and Wiring to Control System
  • USB Cable Interface for DATA Collection

Jr Dragster 144 Volt Battery #JR144

NEW PRICE - $6300 15% Sponsorship to NEXT TWO TEAMS LEFT FOR SPONSORSHIP

Call for sponsorship pricing and interview!

Gen 2 battery is 20 lbs lighter @ 71 lbs!

MLe’s Jr Dragster battery represents leading technology in EV race battery development.  Utilizing professional race-level components, this system incorporates many of the same features found on today's highest levels of motorsports.  This system includes: 2p-4s cell module technology, a real busbar interconnect system, in-battery-box BMS system that can control charger output and motor function based on safety limits, NO HIGH VOLTAGE BMS WIRES OUTSIDE OF BATTERY BOX!  This system offers improved performance, improved battery life, and VASTLY improved safety over currently available battery systems, as well as SAFE offboard charging.



BMS shown in battery box, but not included in price.  See BMS options or call for help with specifications.

System Includes:

  • 9 2p-4s Battery Modules
  • Busbar Interconnects
  • Amphenol PowerLok Finger Safe HV Connector
  • Amphenol Power Connector Plug for Charging
  • Amptrap 400A/300Vdc Fuse
  • Littlefuse 10QA/1000Vdc Charge Fuse
  • Polycarbonate Box w/Flood Ports for Fire Fighting
  • Rollbar Mounts and Protective Hoops


Jr Dragster 72 Volt Battery #JR72

$4150 20% Sponsorship to 1st 5 Teams

Call for sponsorship pricing and interview


This is the little brother to MLe’s 144V Jr Dragster battery system.  Why pay for a full-size pack when all the power you need for younger drivers can be had at about half the price?  Batteries DO have a lifespan, so why buy more than you need just to replace them as your driver ages up to higher performance?

MLe’s Jr Dragster battery represents leading technology in EV race battery development.  Utilizing professional race-level components, this system incorporates many of the same features found on today's highest levels of motorsports.  This system includes: 2p-4s cell module technology, a real busbar interconnect system, and an in-battery-box BMS system that can control charger output and motor function based on safety limits with NO HIGH VOLTAGE BMS WIRES OUTSIDE OF THE BATTERY BOX!  This system offers improved performance, improved battery life, VASTLY improved safety, and SAFE offboard charging. 

System Includes:

  • 4.5 2p/4s Battery Modules
  • Bus Bar Interconnects
  • Amphenol Powerlok Finger Safe HV Connector
  • Amphenol Power Connector Plug for Charging
  • Amptrap 400A/300Vdc Fuse
  • Littlefuse 10QA/1000Vdc Charge Fuse
  • Polycarbonate Box w/Flood Ports for Fire Fighting
  • Roll Bar Mounts and Protective Hoops

Jr Dragster Cable Retrofit #CBLKit

$276 w/Amphenol Connector, $185 w/no battery connector installed

This is a cable replacement for Jr Dragsters that have an inadequate rating on the main (HV) battery cable.

On the vehicle we added our battery to (seen here), we found battery cable with the following SAE rating: SGR SAE J1127.  This rating is for 60Vdc applications.  Cables with the rating SGT SAE J1127 are rated for 600Vdc, but those cables should have “600V” printed on the jacket.

VEHCILES WITH HV CABLE INSULATION RATING OF 60Vdc SHOULD NOT BE DRIVEN.

We have built a retrofit cable kit for people who have the incorrect cable on their vehicles.

This cable retrofit kit is available pre-terminated with our recommended Amphenol “finger-safe” connector or as bare leads on the battery cable ends (MLe will not terminate this to non-finger-safe terminals).

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