The LG MJ1 INR18650 3500mAh 10A lithium-ion battery is one of the standout options in the market when it comes to providing high capacity for devices that require stable and reliable power. This flat-top 18650 cell, designed with advanced INR (lithium nickel manganese) chemistry, offers one of the highest capacities available in its class, delivering an impressive 3,500mAh nominal capacity. This makes it an excellent choice for applications that do not demand extreme discharge rates but still require substantial energy storage, such as power banks, portable devices, and other consumer electronics. The battery’s chemistry is designed to provide a balance of high capacity and stability, setting it apart from many other cells, including those with IMR (lithium manganese) chemistry, which typically offer lower capacities.

The LG MJ1’s INR chemistry ensures that users experience a reliable and stable battery with a capacity that outperforms many other options on the market. With a nominal voltage of 3.635V, this cell is well-suited for powering a variety of devices that require a steady and consistent output. It’s designed for situations where a large energy reserve is needed, allowing it to power devices for extended periods before requiring a recharge. This makes it ideal for applications where longevity is crucial, such as in solar-powered devices, flashlights, or even in larger battery packs used for electric bikes or other electric vehicles.

While the LG MJ1 excels in its impressive capacity, it is important to note that its maximum continuous discharge current is rated at 10A. This places it in a category of cells best suited for moderate to low power demand applications. This means it is not intended for high-drain devices that need extreme current outputs, but rather for devices where the need for a large energy store is the priority. The 10A maximum discharge current ensures that the battery can provide enough power for moderate current applications, while still maintaining a balance between performance and safety. The cell can discharge at a continuous rate of up to 10A without overheating or causing any significant degradation to the battery's internal structure, but users should avoid pushing it beyond this limit to ensure longevity and safe operation.

The LG MJ1 offers flexible charging options that make it convenient for users who want to recharge quickly or more gradually depending on their needs. It features a standard charging rate of 0.5C, which corresponds to 1,700mA, with a cutoff current of 50mA to ensure a full and safe charge. For users who require faster charging, the battery can be charged at a maximum rate of 1C, or 3,400mA, though this should be done with caution to avoid excessive heat generation. The maximum charge voltage for the battery is 4.2V with a tolerance of +/- 0.05V, which ensures that the battery is charged to its full capacity without the risk of overcharging. The LG MJ1 can be safely charged within the recommended temperature range of 0°C to 45°C, helping to prevent overheating and prolong its lifespan.

When it comes to discharging, the battery performs effectively at standard rates, with a recommended standard discharge rate of 0.2C (680mA), which is more than enough for typical everyday applications. For devices that demand higher current draws, the LG MJ1 can handle up to 10A continuously, making it capable of powering moderate power-hungry devices. However, it is important to note that discharging the battery below the cutoff voltage of 2.5V could negatively affect its lifespan, so users should ensure that the battery is not depleted too far during use.

The battery’s cycle life is another important factor to consider when evaluating its long-term performance. The LG MJ1 is rated for 400 cycles when charged at 1.5A and discharged at 4A, maintaining 80% of its original capacity after each cycle. This makes it a long-lasting choice for those who need a reliable power source over extended periods. For users who plan to use the battery in applications where frequent recharging is necessary, the LG MJ1’s cycle life ensures that the battery will continue to perform at a high level over time, without significant degradation in capacity or performance.

Temperature performance is another important consideration for lithium-ion batteries, and the LG MJ1 is designed to operate within a wide temperature range. For charging, the recommended operating temperature is between 0°C and 45°C, while for discharging, the battery can handle temperatures as low as -20°C and as high as 60°C. This broad temperature tolerance makes the LG MJ1 versatile, capable of functioning well in both cold and hot environments. However, it’s important to avoid extreme conditions for extended periods to maintain optimal battery health.

When storing the LG MJ1, it’s recommended to keep it at approximately 40% charge and store it within certain temperature ranges to preserve its performance and capacity. For short-term storage (1 month), the battery can be stored between -20°C and 60°C, while for longer storage periods (up to 3 months), temperatures between -20°C and 45°C are preferable. For storage lasting up to a year, it is best to keep the battery between -20°C and 20°C. Following these guidelines helps to ensure that the battery remains in good condition and continues to deliver reliable performance when needed.

In summary, the LG MJ1 INR18650 3500mAh 10A lithium-ion battery is a high-capacity, moderate-discharge cell designed for applications that prioritize long-lasting energy storage. With its impressive nominal capacity of 3,500mAh, it excels in applications that require substantial energy reserves, such as portable power banks and various consumer electronics. While its 10A continuous discharge current may limit its use in high-drain devices, the LG MJ1 remains a solid choice for those seeking reliable power over long periods. The battery's safety, reliability, and impressive cycle life make it a valuable component for a wide range of applications. Whether used in custom battery packs or integrated into various devices, the LG MJ1 is a durable and efficient battery that delivers consistent performance and longevity.

SPECIFICATIONS

• Nominal Capacity: 3500mAh
• Minimum Capacity: 3400mAh
• Nominal voltage: 3.635V
• Standard charge: 0.5C (1700mA) 4.2V, cut-off 50mA
• Max. charge voltage: 4.2V +/- 0.05V
• Max. charge current: 1C (3400mA)
• Standard discharge: 0.2C (680mA), cut-off 2.5V
• Max. discharge current: 10A
• Weight: Max. 49.0g
• Cycle life : 400 cycles, charge 1.5A, discharge 4A (80%)
• Operating temperature: Charge: 0° ~ 45°C, Discharge: -20°C ~ 60°C
• Storage temperature: 1 month: -20°C ~ 60°C, 3 months: -20°C ~ 45°C

SHIPPING
The final shipping cost and estimated delivery timeframe will be available to you during checkout. Currently, we offer 3 International shipping methods which are steady and easy to track. Priority worldwide shipping, Premium ( Partial countries) and a faster Express shipping. The estimated times stated below are not guaranteed. An international package could experience delays like postal strikes or severe weather or Cov-19 situation. All shipping ways, PO Box address is not acceptable.

For some flashlights, there's a pure battery inside（phone charging）,If We can not ship your packages via USPS or DHL,we'll ship your package in another way.

Note:
When you place an order for just the batteries, for easy shipping, faster and safe delivery, the batteries are placed in the flashlights.

If you don’t receive your order within the estimated time frame provided below and suspect that it might be lost in transit, please contact Flashlightgo Support ( support@flashlightgo.com ) and we can look into the order with the courier. Lost-in-transit requests must be submitted to Flashlightgo Support within 3 months of the date of shipping or before the courier archives the tracking information.

Option 1.
Express by DHL/UPS/Fedex/Aramax/SF etc ( there may be tax need to pay in this way),
The estimated time of delivery is usually 3-7 work days depending on the country. Includes detailed tracking and confirmation of delivery.

Option 2.
Premium ( 6-10days, All tax and Duty Paid),
All tax and duty are prepaid to carrier by Flashlightgo before shipping, so you dont need to pay any tax or duty when you get it.

Option 3.
Priority shipping(1-2 Weeks, average 10 days)
If we marked it is with all tax and duty paid, all tax and duty are prepaid to carrier by Flashlightgo before shipping, so you dont need to pay any tax or duty when you get it.

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To ensure that you get the desirable product, we allow a seven-day product return period. Any product return application outside this period will not be entertained.
All returned product must be unused and the original package should be kept.

Return：
We do not offer return for personal products like socks and hats or food, magazine and fragile or dangerous products The original receipt must be available for application of return.

Discount products：
No product return for discount products

Gifts products：
If the item is marked as a gift when purchased and shipped directly to you, it cannot be exchanged , refunded or warranty.

Exchange：
We only replace items if they are defective or damaged.
Exchange service are offered only to wrong deliveries or product damage not caused by client. If needed, please email to info@flashlightgo.com.

Warranty
How long is the warranty period?
Flashlightgo warrants to the original purchaser that the Product(s) shall be free of any defect in material or workmanship for a period of one year for labor and one year for parts from the date of the original order except the items listed below:
Chargers,Batteries and Other Accessories: 3 months warranty

Should the Product(s) supplied by Flashlightgo prove defective because of improper workmanship or material as reasonably determined by us, Flashlightgo agrees, at its option, to either repair or replace the Product free of charge, excluding any shipping or handling charges.

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