Eizfan 18650 3100mah Rechargeable Lithium Li-ion Battery 18650 28A/40A Li Ion Battery for vape e-cig
Model number: Eizfan 18650-3100mAh battery
Nominal Capacity： 3100mAh
Norminal Voltage ：3.7V
Max discharge continuous ：28A
end voltage(cut off) 2.5V
Maximum pulse discharge Current ：40A
Cycle life: more than 500 cycles
Application: Vape/E-cig
Eizfan 18650 3100mah 28A/40A specification
| Item | Condition / Note | Specification |
|---|---|---|
| Capacity | Std. charge / discharge | 3100mAh |
| Nominal Voltage | Average of Std. Discharge | 3.7V |
| Standard Charge | Constant Current | 620mA |
| Constant Voltage | 4.2V | |
| End Current (Cut-off) | 50mA | |
| Fast Charge | Constant Current | 3.1A |
| Constant Voltage | 4.20V ±0.05V | |
| End Current (Cut-off) | 100mA | |
| Max Charge Voltage | — | 4.2V |
| Max Charge Current | — | 3.1A |
| Standard Discharge | Constant Current | 0.2C |
| Fast Discharge | End Voltage (Cut-off) | 2.5V |
| Max Continuous Discharge | — | 28A |
| Max Pulse Discharge | — | 40A |
| Weight | Approx. | 48.5g |
| Operating Temperature | Charge | 0–45°C |
| Discharge | -10–60°C | |
| Storage Temperature | 1 Month | -20–60°C |
| 3 Months | -20–45°C | |
| 1 Year | -20–20°C | |
| Dimensions (D × H) | — | D18.2 +0.2/-0.3 mm × H65.15 ±0.2 mm |
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YiFang specializes in batteries, chargers, battery packs, and power solutions, including Li-ion, LiMn (IMR), Ni-MH, and LiFePO₄ batteries.
Does YiFang provide OEM/ODM services?
Yes, we offer flexible OEM and ODM customization, including product design, specifications, and packaging to meet your exact requirements.
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Our products are widely used in e-cigarettes, UAVs, balance scooters, electric bikes, electronic equipment, toys, flashlights, and other commercial and industrial applications.
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YiFang operates its own factory with automated production lines, producing up to 100,000 units daily, ensuring consistent quality and timely delivery.
How can I contact YiFang for orders or inquiries?
You can contact us via our website inquiry form, email, or phone. Our team is ready to provide professional guidance and customized solutions.
What industries use YiFang products?
Our products are widely used in e-cigarettes, UAVs, balance scooters, electric bikes, electronic equipment, toys, flashlights, and other commercial and industrial applications.
What industries use YiFang products?
Our products are widely used in e-cigarettes, UAVs, balance scooters, electric bikes, electronic equipment, toys, flashlights, and other commercial and industrial applications.
What warranty and after-sales support does YiFang offer?
We provide 6–12 months warranty, responsive customer support, and global insurance coverage for long-term reliability and customer peace of mind.