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

LG MJ1 18650 battery upright
LG MJ1 18650 left side angle
LG MJ1 INR 18650 3.7V Rechargeable Li-ion Battery alternate view 3
LG MJ1 INR 18650 3.7V Rechargeable Li-ion Battery alternate view 5
LG MJ1 18650 battery upright
LG MJ1 18650 left side angle
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  • With strong current and stable performance, this battery is ideal for high drain devices
  • INR batteries are reliable with continuous discharge and increasing capacities that are stabilized by the Lithium manganese nickel chemistry
  • The 18650 size is universally used, so multiple devices can utilize this battery
Usually ships the next business day
1$5.95 ea.
2 - 7$5.85 ea.
8 - 23$5.75 ea.
24 - 49$5.40 ea.
50 - 99$5.20 ea.
100 - 199$4.85 ea.
200 - 399$4.80 ea.
400+$4.75 ea.
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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
Please note that these batteries have flat top terminals, and may not be compatible with some devices.
For more information regarding authorized use, applications, and safety guidelines, please feel free to visit the LG Battery Guide.
Now Available for sale as a 4-Pack


Unless equipped and 'protected' with a PCB (protection circuit module) and/or similar device, lithium ion (li-ion) rechargeable battery cells are not recommended by BatteryJunction.com or our parent and associated companies, or the respective manufacturers, as a stand-alone product. Misuse of lithium ion rechargeable battery cells can pose a serious risk of personal injury or property damage.
Battery Size:18650
Battery Capacity (mAh):3500
Battery Chemistry:Li-Ion
Battery Voltage:3.7
Battery Terminal Type:Flat Top
Battery Shelf Life:3 Years
Warranty:Battery Junction 30-Day Warranty
Return Policy:Battery Junction Return Policy
Product Weight:1.65oz
Product Dimensions:2.56" (L) x 0.72" (Diameter)
Country of Origin:China
Associated Battery Sizes:168A, 18650, 19670, Protected 18650, Unprotected 1865
11 Reviews
82% (9)
9% (1)
9% (1)
0% (0)
0% (0)
By David K.
Too Early to Tell
December 5, 2022
Been using the new LG cells for only 2 weeks so it is too early to pass judgement. Nevertheless, they seem to work fine. They only charge up to 3.99 volts vs the originals at 4.20 volts. Eventhough they fit in my enclosure it would be nice if you had some with a larger nub on the positive terminal.
By Jessie
They last a long time!
September 9, 2021
I l like these better than any other 3500's out on the market! I've had them for a while and they still deliver every time!
By jason l.
Good packaging, great quality product.
December 20, 2020
The packaging was good. All the battery delivered safely. I tested the battery and they all match the quality as it is advertised.
By Steve
Rated Capacity Not Available for Use
November 14, 2020
The first charge of these batteries only showed a capacity of around 2250 mAh. After first use, the batteries only charged up to about 1550 mAh. So, these batteries are showing that less than half the rated capacity is available for actual use. Kinda disappointing.
By Lynn
Mesa, Arizona
Great batteries
August 13, 2020
great place to get the batteries that you need and shipped fast.
1 Question & 1 Answer
Bijan Shambayati
from 15481 Camarillo street Sherman oaks California91403 asked:
December 30, 2020
What are dimensions of this battery?( length and diameter)
1 Answer
The dimensions of this battery would be as listed: 2.56" (Length) x 0.72" (Diameter)
Submitted by: Matthew H on January 8, 2021

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

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