EJC 18650 3500mAh Rechargeable Lithium Battery: High-Capacity Cell for Torches, Lasers, and Electronics
The 18650 is the workhorse cell behind most of the rechargeable devices you already own. Torches, laser pointers, vape mods, portable fans, Bluetooth speakers, power banks, and countless other electronics all run on this single standardised battery format. When the original cell loses its ability to hold a charge, the EJC 18650 3500mAh is a direct replacement that restores full performance.
At 3500mAh, this sits at the higher end of the 18650 capacity range. More milliamp hours means longer runtime between charges, which makes a practical difference in devices that drain batteries quickly. A high-output torch running on a 2500mAh cell that dims after 90 minutes will keep producing full brightness noticeably longer on a 3500mAh cell. The same applies to laser pointers, handheld radios, and any other device where runtime directly affects usability.
The 18650 form factor measures approximately 18 mm in diameter and 65 mm in length, which is where the name comes from. This is a flat-top unprotected cell, so confirm that your device accepts flat-top cells before ordering. Some torches and electronics require button-top variants with a raised positive terminal, and the two are not always interchangeable.
Lithium-ion chemistry provides a nominal voltage of approximately 3.7V with the energy density to pack 3500mAh into a cell you can hold between two fingers. Li-ion cells also maintain relatively stable voltage output through most of their discharge cycle rather than gradually fading the way older NiMH and NiCd batteries do, so your torch stays bright and your device performs consistently until the cell actually needs recharging.
Recharge the cell using any standard 18650 compatible lithium-ion charger. Dedicated chargers with individual bay monitoring are recommended over cheap universal chargers, as proper charge termination protects cell longevity and safety. A well-maintained 18650 cell can endure hundreds of charge cycles before capacity degradation becomes noticeable.
Keep spare cells in a protective case or sleeve when not in use. Loose 18650 batteries in a pocket, toolbox, or bag can short-circuit against keys, coins, or other metal objects, which creates a serious heat and fire hazard. This is not a theoretical concern. It's the single most important safety rule for handling any exposed lithium-ion cell.
Specifications
| Brand |
EJC |
| Cell Type |
18650 |
| Capacity |
3500 mAh |
| Chemistry |
Lithium-ion |
| Nominal Voltage |
3.7V |
| Form Factor |
18 mm diameter × 65 mm length |
| Terminal |
Flat top |
| Rechargeable |
Yes |
A high-capacity replacement cell for any device that runs on 18650 batteries. Buy the EJC 18650 3500mAh battery online at NeonSales, delivered across South Africa.