LG MJ1 INR 18650 3500mAh 3.7V High-Drain 10A Lithium Ion (Li-ion) Unprotected Flat Top Battery - Bulk

Regular price$5.95
/
Shipping calculated at checkout.

Color

DESCRIPTION

LG MJ1

Unprotected Flat Top 18650 Battery

The LG MJ1 is a flat top 18650 battery with one of the highest capacities available. INR (lithium nickel manganese) chemistry offers a superior 3,500mAh capacity compared to most IMR (lithium manganese) cells, while having a maximum discharge current of 10A. The flat top terminal design is ideal for use in creating battery packs.

Rechargeable & Reusable

Invest in a rechargeable battery that will last for years to come– this battery can be recharged 400+ times.

3 Year Shelf Life

Stock up and store spare batteries with confidence– lithium ion batteries have a 3+ year shelf life, ensuring you always have a fresh replacement when you need it.

High Discharge Rate

10A max continuous discharge rate for high-drain electronics, such as flashlights that require minimum discharge rates to enable their brightest modes.

Notable Features

» 3,500mAh energy capacity offers longer runtimes for all your devices
» Flat top terminal is perfect for use in battery packs.

SPCIFICATION

Brand LG
MPN MJ1
Color
Green
Size 18650
Chemistry Li-ion
INR (LiNiMnCoO2)
Voltage 3.64V
Capacity 3,500mAh
Terminal Flat Top
Protected No
Shelf Life

 3 Years

 

CHARGE & DISCHARGE

Charge Cycles 400+
Voltage
Nominal 3.64V
Maximum 4.2 ± .05V
Discharge Rate
Max Continuous 10A
Standard 680mA
Charge Rate
Max 3.4A
Standard 1.7A

 

DIMENSIONS

 

Length 2.56" / 65 ± .2 mm
Diameter .72" / 18.4 ± .1 mm
Weight 1.73oz / 49g

 

TECHNICAL DATA

Country of Origin CN
UPC 00717356042959
Warranty Battery Junction 30-Days
Return Policy Battery Junction Return Policy

 

LGMJ1_datasheet

🔧 Battery Rebuild Service

We rebuild your existing battery using fresh, high-quality cells to restore or increase capacity and performance.

  • Full disassembly, rebuild, and testing
  • Upgraded capacity options available
  • Uses brand new name-brand cells
  • Turnaround time: Approximately 14 business days
  • Timeline includes the time it takes for us to receive your battery and complete the rebuild

⚡ Custom Battery Builds

Fully custom battery solutions designed to meet your exact specifications. This is ideal for unique applications or when a standard battery will not fit your needs.

  • Custom shapes and sizes
  • Custom BMS (Battery Management System) configurations
  • Choice of cells and performance levels
  • Option for enclosed case or raw (naked) pack
  • Built specifically for your application
  • Turnaround time: Approximately 21 business days

🔋 Battery Packs (Encased)

Battery packs built using one of our in-stock cases. These are a great option if you want a reliable, ready-to-fit solution.

  • Uses pre-designed cases from our inventory
  • Proven, reliable configurations
  • Faster than fully custom builds
  • Turnaround time: Approximately 14 business days

🔬 Battery Cells (Individual Cells)

We supply high-quality lithium-ion cells for repairs, upgrades, and custom builds.

  • In-stock cells: Ship within 3–6 business days
  • Out-of-stock (air shipping): Approximately 10 business days
  • Out-of-stock (sea shipping): Approximately 40 days

📦 Shipping & Intake Process

  1. Place your order or request a quote
  2. Fill out our Battery Intake Form
  3. Send in your battery (include charger and key if required)
  4. We inspect and test your battery
  5. We contact you with results and recommended options

Important Information

Turnaround times begin once your battery is received and checked into our system.

During high demand periods or for complex builds, timelines may be slightly extended.

Shipping Method

  • All batteries are shipped via ground service only (FedEx or UPS) in compliance with DOT and IATA regulations for lithium batteries.
  • Expedited air shipping is not available for lithium battery products.

Delivery Time

  • Ground shipping typically takes 3–7 business days within the U.S.
  • Tracking information will be provided as soon as your order ships.

Local Pickup

  • Pickup is available at our Las Vegas facility:

    4856 Judson Ave Suite 155 Las Vegas, NV 89115

    Monday– Thursday, 9:00 AM – 4:00 PM ( Friday by appointment).

Returns

  • Returns are accepted within 14 days of delivery on unused, unopened batteries.
  • For rebuilds and custom packs, all sales are final unless defective.

Important Notes

  • Shipping is limited to the continental United States.
  • Customers are responsible for providing a valid shipping address — carriers cannot deliver to P.O. Boxes.
  • Signature may be required at delivery for higher-value battery orders.


This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.


Compare Our Battery Diagnostic Tiers

Feature Tier 1 Tier 2 Tier 3
Visual inspection
Voltage and port testing
Full-cycle capacity test
Resistance / voltage drop testing
Cell analysis
Cell balancing
Component cleaning
BMS / major internal service

Made in the USA / Local Confidence

BUILT & TESTED IN LAS VEGAS

Every battery that leaves our shop is inspected, tested, and supported by our U.S. team. Local service. Fast turnaround. Proven reliability.

Batteries
Fit & Compatibility

EVERY RIDEBUILT TO FIT

Each battery is designed or rebuilt for direct compatibility with your e-bike. If it doesn’t fit, we’ll make it right — guaranteed.

Hear it from them

★★★★★

Couldn't be happier with the service I received from this company.

Leslie M.
Toronto, ON
★★★★★

Really went out of their way to make me feel special as a customer, highly recommend!

Rachel F.
Los Angeles, CA
★★★★★

Rebuilt my old pack and it’s like new. Excellent workmanship and fast turnaround from their Las Vegas team.

Sam R.
Brooklyn, NY
★★★★★

Great range of batteries — fast shipping and the pack fit my Dorado perfectly. Tech support helped me with installation.

Sharon S.
New Orleans, LA
★★★★★

Couldn't be happier with the service I received from this company.

Matt C.
Montreal, QC
★★★★★

Solid value, honest advice. The charger they recommended charges quicker and the battery lasts longer than my original.

Justin Oboeo
Los Angeles, CA
★★★★★

Good experience overall — the custom build added range and the customer service answered every question.

Carlos Velez
Las Vegas, NV

Recently viewed