Tested & Certified
SCIGOLD 18650 Li-ion Cells — Standard
SCIGOLD 18650 Li-ion rechargeable cells: 2,000 / 2,200 / 2,500 mAh, 3.6V, protected button-top, 500+ cycles. For flashlights, vape mods & headlamps.
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- Cell size
- 18650
- Power
- 3.6V Li-ion
- Material
- Protected button-top
- Cell models
- SL1865020 / SL1865022 / SL1865025
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on orders $35+
12-month warranty
from date of purchase
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original condition & packaging
SCIGOLD 18650 Standard · 3.6V Li-ion
The universal cylindrical cell.
Protected button-top 18650s in 2,000, 2,200 and 2,500 mAh, up to 9,000 mWh a cell.
Inside the 18650 Standard
Pick the runtime. Keep the protection.
Three capacities in the same 18.5 × 65.3 mm cell, with the same protection circuit and 6 to 7.5 A of discharge.
Flashlights
Tactical and EDC flashlights.
The raised positive terminal makes reliable contact in spring-loaded flashlight tubes. Choose 2,500 mAh (9,000 mWh) for long-runtime tactical lights, or 2,000 mAh (7,200 mWh) to replace the cells in an older flashlight.
The Standard is rated down to -20°C. For winter use, the Cold-Weather 18650 is rated to -40°C.
Vape mods
Vape mods at moderate wattage.
The 2,200 mAh cell (7,920 mWh) is the balanced pick for vape mods at moderate wattage. Standard cells are rated for 6 to 7.5 A of discharge, depending on capacity, and every one is a protected button-top.
Fit
Check the fit before you order.
All three capacities measure 18.5 × 65.3 mm. A protected button-top sits slightly longer than a flat-top, so check the device or holder has room before you order. A 21700 is larger still and will not fit an 18650 space.
Beyond flashlights and vape mods, the 18650 goes in headlamps, camping lanterns and bike lights that take a removable cell, and in battery boxes and power-bank cases with spring contacts. Check the device's manual for the cell it needs.
Charging
Charge four at once on the Bench Dock.
The SCIGOLD Bench Dock (CW401) charges up to four 18650 or 21700 cells at once. Each bay detects its cell, applies the Li-ion charge profile, and shows live voltage and charging status on the LCD.
It runs from USB-C: a phone charger, a laptop adapter, a power bank or a car USB port.
Why this cell
A protected 18650 for everyday devices.
Protected button-top
A built-in circuit guards against overcharge, over-discharge, short circuit and over-current.
Up to 9,000 mWh
2,000, 2,200 or 2,500 mAh at 3.6V nominal: 7,200, 7,920 or 9,000 mWh a cell.
Up to 7.5 A
6 to 7.5 A of discharge depending on capacity, with internal resistance of 22 mΩ or less.
500+ cycles
Rated for 500+ charge cycles, and certified to IEC 62133-2 and UN 38.3.
Compatibility
Made for 18650 devices.
- Flashlights
- Tactical and EDC flashlights that take an 18650, including spring-loaded tubes.
- Vape mods
- Vape mods at moderate wattage, within the cell's 6 to 7.5 A rating.
- Lights and holders
- Headlamps, camping lanterns and bike lights that take a removable 18650, and battery boxes or power-bank cases with spring contacts.
- Charger
- The SCIGOLD Bench Dock, which charges up to four 18650 or 21700 cells at once.
Good to know
- Protected button-tops sit slightly longer than flat-tops. Check your device or holder has room before you order.
- 3.6V nominal: about 4.2V full and about 2.5 to 3.0V empty.
- Rated from -20°C to 55°C. For colder use, choose the Cold-Weather 18650, rated to -40°C.
- All three capacities measure 18.5 × 65.3 mm and weigh 44 g ± 2 g per cell.
Specs & details
Every number, in one place.
The 18650 cell that powers the modern world.
From Tesla’s Model S packs to high-output flashlights and headlamps, 18650 is the universal cylindrical cell of the consumer Li-ion era. SCIGOLD’s Standard series brings third-party safety certification (IEC 62133-2, UN 38.3) to everyday pricing — from $4.50 a cell.
Pick your capacity by use case
| Capacity | Tier | Best for |
|---|---|---|
| 2,000 mAh (7,200 mWh) | Entry tier | Replacement cells for older flashlights |
| 2,200 mAh (7,920 mWh) | Balanced | Vape mods at moderate wattage, headlamps |
| 2,500 mAh (9,000 mWh) | High capacity | Long-runtime tactical flashlights and lanterns |
All three share the same physical dimensions (18.5 × 65.3 mm), same chemistry (3.6V Li-ion), same protection circuit. Pick the capacity that matches your runtime needs.
Honest about what this isn’t
If you’re in sub-zero environments (winter EDC, ski cabin, hunting) — go to our 18650 Cold-Weather series. The Standard series operates down to -20°C, but the Cold-Weather variant is rated down to -40°C and has lower internal resistance than the Standard.
It isn’t a pack-building cell either. Pack building is normally done with unprotected flat-top cells and a BMS. SCIGOLD cells are protected button-tops and are not sold for building or rebuilding packs.
Compared to NiMH and unprotected Li-ion
| Spec | SCIGOLD 18650 Standard | Eneloop NiMH AA pack | No-name 18650 (eBay) |
|---|---|---|---|
| Energy per cell | 7,200-9,000 mWh | about 2,400 mWh (2,000 mAh) | Unverified |
| Protection circuit | Integrated | N/A | None (bare cell) |
| Cycle life | 500+ cycles | 2,100 cycles | Unknown |
| Voltage | 3.6V nominal (about 4.2V full to about 2.5–3.0V empty) | Sags from 1.4V → 1.0V | Variable |
| Safety certification | IEC 62133-2 + UN 38.3 | — | None stated |
The premium over a counterfeit 18650 is not the cell — it’s the protection circuit, which guards against external short circuits, overcharge, over-discharge and over-current.
Frequently Asked
Quick answers, before you buy.
Are SCIGOLD 18650 cells protected or unprotected?
What capacities do SCIGOLD 18650 cells come in?
Are these 18650 cells flat-top or button-top?
How many charge cycles do SCIGOLD 18650 cells last?
What devices use 18650 cells?
What is the difference between 18650 and 21700 cells?
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