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Protected LG MJ1 3500mAh 10A 18650 Button Top Battery - Wholesale Discount

Liion Wholesale

$ 5.79 Save $ 2.16
69 reviews

SKU: lgmj1pcb

ON SALE! No additional quantity discounts will be given. Quantities ordered will not count towards quantity discounts on other products.


UL 2054 and IEC 62133 Certified Button Top Batteries

The LiionWholesale Protected 3500mAh battery is made by Liion Wholesale using the LG Chem INR18650MJ1 battery cell.  The LG MJ1 3500 mAh is an 18650 battery cell that can handle fairly high drain applications (10A) while offering a massive 3500mAh. 

This is one of the best batteries we offer for high discharge flashlights or other devices that need a high capacity but medium discharge protected battery.  The protected NCR18650GA is its only real competitor and is a good alternate choice as well.  

All protected MJ1 are not the same - the Liion Wholesale version is the best protected 18650 on the market

The cell inside the battery is made by LG Chem in Korea.  Our company then manufactures the battery by adding the high quality protection PCB/BMS along with the button/nipple top in an ISO 9001 certified factory to all safety standards.  A black wrap is put over the top to hold it together.

These are manufactured with a very high quality PCBA including a Japanese Ricoh protection IC with three FNK MOSFETs for 20A high current cutoff (most PCBs will not be able to handle this much current).   This protection circuit protects the battery from mishandling, overcharge, or overdischarge while allowing the battery to do its job properly.

Tested to the most safety certifications of any competitors, including UL 2054, IEC 62133, CB Scheme, and UN38.3

Please note that these batteries do have a UN38.3 test report available and are  legal for shipping.  Many protected batteries on the market actually do not have any test data and are likely illegal for shipping due to lack of UN38.3 test report.  Many competitors don't realize that a separate test needs to be done on the battery assembly and that the cell test is not enough.  All of our batteries include a UN38.3 report available upon request.

These protected MJ1 batteries actually go a few steps further and are actually UL 2054 tested, IEC62133 tested and have a CB certificate which will allow easy certifications in almost any country.  UL 2054, IEC 62133 and CB Scheme test reports and paperwork are available upon request. 

The UL testing was performed by TÜV Rheinland and the batteries have a NRTL mark that is compatible with UL listed, TUV, Intertek, etc.  This battery is very popular for products that require certifications such as medical device batteries, or other UL listed product batteries.

Full LG INR18650 MJ1 cell specification

OEM private labeled batteries with your brand available

We have many customers that we make a private labeled version of this battery for.  For orders of 1000+ we can make them with your brand label!

Quick Specs:

  • Manufacturer and part number:  Liion Wholesale lgmj1pcb
  • Max Continuous Discharging Current: 10A
  • Typical Capacity: 3500 mAh (3350mAh minimum)
  • Style:  BUTTON top
  • Approximate Dimensions (including button): 69.1mm length x 18.6 mm diameter
  • Maximum Length:  69.6mm
  • Discharge cut-off voltage: 2.5V (approximate)
  • Voltage: 3.6V
  • Full Charge Voltage: 4.2V
  • Charge Current:  1.675A standard
  • Protection Cutoff Current:  ~20A
  • Protection IC:  Ricoh R5478N101CD
  • MOSFETS:  FNK10N25B (Quantity 3)
  • Origin:  Cell made in Korea, button top manufactured in China, Protection IC made in Japan.  Assembled in China.
  • Cell Certifications:  UN38.3 test report, IEC62133, CB Scheme, UL1642
  • Battery Assembly Certifications:  UN38.3 test report, IEC62133, RoHS, REACH, CB Scheme.  UL2054

Batteries are sold individually.

If your battery is damaged or defective on arrival (will not take its first charge, or has issues with its first cycle), please let us know within 14 days of receiving your order and we'll make it right. Please read our complete store policy on defective products here for more information and to see if you're eligible.

Manufacturer ratings: Please see more information regarding manufacturer ratings here.

Battery Warning

Warning: Lithium ion batteries may explode or burn due to improper use. Using these batteries for purposes not intended by the manufacturer, including outside a battery pack and/or without a BMS, may cause severe injury and damage. We are not responsible for any injuries caused by lithium ion batteries - use at your own risk.

All rechargeable batteries have inherent risks under any circumstance. Use caution with working with li-ion batteries (lithium-ion), LiPo (lithium ion polymer), and any rechargeable cells (together "rechargeable batteries"), as they have dangerous charging characteristics and are known to explode or burn if mishandled. A purchaser and user of rechargeable batteries should educate themselves on rechargeable batteries, especially as to charging, discharging, assembly, and storage. Learn more about proper storage and care for rechargeable batteries here. We are not responsible for any damage caused by the misuse or mishandling of rechargeable batteries.

Here are a few tips:

  • Never completely discharge batteries (below 2.5V under load or 3V unloaded)
  • Charge fully (to 4.2V) before first use
  • Never charge batteries to 4.3V or above
  • Do not charge unattended
  • Do not store your li-ion batteries fully charged for an extended period of time (weeks or more)
  • If you must store your battery, only store in a case or individual box in a cool and dry place at approximately 3.6-3.7V
  • Use only high quality battery chargers
  • Do not expose to heat
  • Do not connect the positive contact to the negative contact without an appropriate load
  • Never exceed the battery's specifications
  • Never try to charge or discharge li-ion batteries with battery chargers that are not made for li-ion batteries
  • Always charge these batteries on and within fireproof material
  • Never leave rechargeable batteries in a recharging station unattended
  • Do not use any rechargeable battery or charger if any visible damage is present, or if known mishandling, accidental or otherwise, has occurred
  • Always store and transport rechargeable cells in a safe, non-conductive container (never keep a spare battery loose in a pocket, purse, etc. and always use protective cases)
  • Properly dispose of all battery cells and chargers in accordance with local laws and mandates (if you're unsure, contact your local municipality)
  • If a rechargeable battery overheats, hisses, or bulges, immediately quarantine the battery from any combustible materials - ideally, take the battery outside
  • If a rechargeable battery catches fire, the FAA recommends pouring water or soda on the battery and surrounding areas - ideally, use a foam extinguisher to quell the fire

By purchasing this product, you agree that seller makes no warranties whatsoever with respect to the goods sold on this website, including any (a) warranty of merchantability or (b) warranty of fitness for a particular purpose, whether express or implied by law, course of dealing, course of performance, usage of trade or otherwise. Buyer acknolwledges that it has not relied upon any representation or warranty made by seller, or any other person on the seller's behalf. If purchasing for resale, buyer assumes all responsibility and agrees to forward all notifications and warnings to the purchaser.

Customer Reviews
4.8 Based on 69 Reviews
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MA
11/26/2020
Manuel A.
United States United States
  • What device/application do you use this with? RadioKing TX18S
Great Battery

Using these on an rc transmitter and they work very well. Good to know they're protected as well.

CR
11/16/2020
Carlos R.
United States United States
  • What device/application do you use this with? Flashlight

Great product at a great price

JC
10/19/2020
Joseph C.
United States United States
  • What device/application do you use this with? High power flashlights
Great 18650s customer service excellent

Batteries came fast and all to a charge but one. Email to customer service and they sent out a new one right away. Thanks Liion wholesale

AB
09/28/2020
Aaron B.
United States United States
  • What device/application do you use this with? automotive repair lighting
Quick shipping and quality product

Seems like the real thing and it works well

JA
09/18/2020
Joey A.
United States United States
  • What device/application do you use this with? High output long range led flashlight.
Excellent value for great batteries

These have become my favorite battery after using them for a month now. My diagnostic charge actually showed the capacity to be understated by 100-200 mah. For a 3500 mah protected 18650, that is fantastic. As always liion warehouse is the best in the business.


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