The LG INR18650 F1L is a high-performance lithium-ion rechargeable battery with a 3350mAh capacity, designed for devices requiring stable power output. Its flat-top design ensures compatibility with unprotected battery compartments, while its INR (Lithium Nickel Manganese Oxide) chemistry balances energy density, safety, and longevity. Ideal for flashlights, vaping devices, and portable electronics, it operates within a 3.6V nominal voltage range.
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What Are the Key Specifications of the LG F1L Battery?
The LG F1L features a 3350mAh capacity, 3.6V nominal voltage, and a maximum continuous discharge current of 10A. Its dimensions are 18mm (diameter) x 65mm (height), and it weighs approximately 47g. The INR chemistry ensures thermal stability, with a charging voltage of 4.2V and a discharge cutoff at 2.5V. Operating temperatures range from -20°C to 60°C.
| Specification | LG F1L | Samsung 30Q | Sony VTC6 |
|---|---|---|---|
| Capacity | 3350mAh | 3000mAh | 3000mAh |
| Max Discharge | 10A | 15A | 15A |
| Chemistry | INR | INR | Li-ion |
The LG F1L’s 3350mAh capacity makes it ideal for applications prioritizing runtime over ultra-high discharge rates. While competitors like the Samsung 30Q and Sony VTC6 offer higher 15A discharge capabilities, they sacrifice approximately 10% capacity. This trade-off positions the F1L as the preferred choice for medium-drain devices such as LED flashlights or handheld GPS units, where sustained energy output matters more than peak power bursts. Its 47g weight also ensures portability without compromising structural integrity, even in rugged environments.
What Devices Are Compatible with the LG F1L Battery?
The F1L works in devices requiring unprotected 18650 cells, including high-end flashlights, laser pointers, and vaping mods. Avoid using it in laptops or power tools with proprietary battery packs. Always verify device specifications, as some chargers or gadgets may require button-top batteries for proper electrical contact.
Popular devices compatible with the F1L include the Fenix PD36R flashlight, GeekVape Aegis Solo vape mod, and Nitecore EA81 searchlight. Its flat-top design allows seamless integration with spring-loaded battery trays common in vaping devices, eliminating the need for magnetic spacers. However, users should avoid pairing it with older flashlights designed for button-top cells, as the lack of a protruding positive terminal may cause connection issues. For DIY electronics projects, the F1L’s stable discharge curve supports low-to-moderate power demands in portable speakers, Raspberry Pi UPS systems, and solar-powered chargers.
How Does the LG F1L Compare to Other 18650 Batteries?
Compared to rivals like the Samsung 30Q or Sony VTC6, the LG F1L prioritizes capacity (3350mAh) over ultra-high discharge rates. While the Samsung 30Q offers 15A continuous discharge, the F1L’s 10A rating suits moderate-drain devices better. Its flat top vs. button-top design limits compatibility with certain chargers but ensures seamless use in vaping mods or flashlights.
How to Safely Charge and Maintain the LG F1L?
Use a quality lithium-ion charger with overcharge protection. Charge at 1.67A (0.5C) to prolong lifespan. Store at 3.6V–3.8V if unused for extended periods. Avoid puncturing, extreme temperatures, or exposing to water. Replace the battery if capacity drops below 80% or if swelling occurs.
Are There Risks of Counterfeit LG F1L Batteries?
Counterfeits are prevalent. Authentic LG F1Ls have laser-etched codes on the casing, matte-wrap textures, and precise weight (47g). Purchase from authorized distributors like 18650BatteryStore or LiionWholesale. Counterfeits often overstate capacity or lack safety features, posing fire hazards.
How to Recycle the LG F1L Responsibly?
Lithium-ion batteries must not be disposed of in household trash. Use recycling programs at electronics retailers like Best Buy or Home Depot. Tape terminals before disposal to prevent short-circuiting. Many manufacturers offer mail-in recycling services compliant with EPA guidelines.
Expert Views
“The LG F1L strikes a rare balance between capacity and reliability. While it’s not suited for ultra-high-drain applications, its INR chemistry provides inherent thermal safeguards that make it a go-to for moderate-power devices. Always pair it with a quality charger—skimping here voids the cell’s safety advantages.”
— Battery Safety Consultant, PowerCell Insights
Conclusion
The LG INR18650 F1L 3350mAh is a versatile, high-capacity battery optimized for moderate-drain applications. Prioritizing safety and longevity over extreme performance, it remains a top choice for enthusiasts and professionals alike when sourced authentically and maintained properly.
FAQs
- Q: Can the LG F1L be used in series or parallel configurations?
- A: Yes, but only with batteries of identical age, capacity, and charge state. Imbalanced pairs risk overheating.
- Q: Does the F1L have built-in protection circuits?
- A: No—it’s an unprotected cell. Use only in devices with built-in voltage cutoff and short-circuit protection.
- Q: What’s the typical lifespan of the LG F1L?
- A: 300–500 cycles when discharged to 2.5V and charged at 0.5C. Avoid deep discharges below 20% for longevity.