2-Slot 18650 Battery Charger Set 4pcs 3300mAh Flat Top, Universal
Quick take
This 2-slot 18650 battery charger kit comes with four included 3.7V flat-top Li-ion batteries rated at 3300mAh each. It is a practical option for devices that use 18650 and closely related sizes (26650, 18500, 14500) and for people who want a basic charger with a progress-style display. The main buying caveat is compatibility: it is intended for 3.7V Li-ion cells and is not suitable for NIMH or 1.5V batteries.
Pros and cons
Pros
- Includes four 3.7V flat-top Li-ion batteries (3300mAh), so you can start charging right away.
- 2-slot charger design, built for common Li-ion sizes like 18650, 26650, 18500, and 14500.
- Buyers mention a visible/progress-style display and reliable everyday charging.
- Useful for 18650-based devices such as vapes and other portable electronics.
Cons
- Not for NIMH or 1.5V batteries, so it will not work as a general-purpose charger across chemistries.
- Limited to two bays at a time, so you will wait longer if you need to charge more cells.
- “Charges fairly quick” is mentioned, but charging time will vary by cell condition, so the exact time is not guaranteed.
What buyers think
Buyer-review evidence is limited in number, but the recurring themes are straightforward. Several shoppers describe the charger as easy to use and effective at getting their compatible batteries charged, with one noting the display showing charging progress. Reviews also commonly frame the bundle as good value for powering 18650-based devices, including vape setups and other compact electronics. Where concerns appear, they are not tied to repeated charger failures, rather they align with typical expectations for a basic, 2-slot charger (for example, the need to charge in batches).
What this kit is, and who it fits
This is a combined charger and battery set aimed at people using 3.7V flat-top Li-ion cells. The kit includes four batteries rated at 3300mAh and a 2-slot charger designed for common Li-ion formats: 18650, 26650, 18500, and 14500. If your devices take those sizes and you are specifically using 3.7V Li-ion (flat-top), this bundle can reduce the hassle of buying batteries and a compatible charger separately.
Key specs to check before you buy
Compatibility (the biggest decision factor)
- Battery chemistry: 3.7V Li-ion intended. It is not suitable for NIMH or 1.5V batteries.
- Battery size: supports 18650, 26650, 18500, and 14500.
- Battery style: the included cells are flat top, so devices that require button top cells may need a different battery style.
Charger capacity and charging behavior
The charger has two ports, so it charges two cells at a time. That is typically ideal for routine topping off or replacing a pair in devices, but it means you will not be able to rapidly refresh a large collection of cells in one session.
Pros and cons for real buying decisions
Pros
- Bundle convenience: four batteries plus a charger, so you can set up quickly.
- Everyday usability: users describe it as working as expected without extra complexity.
- Progress display: shoppers mention a display that shows charging progress.
- Good value framing: buyers use the kit for common 18650 needs and describe it as worthwhile for that purpose.
Cons
- Not universal across chemistries: if you need to charge NIMH or 1.5V cells, you will need a different charger.
- Two-slot limitation: charging more than two cells means more waiting time.
Price and availability
There is a listed price and it is shown as in stock for the US market. If you are comparing multiple charger kits, consider whether you specifically need the included four batteries, because some alternatives sell chargers only.
How it compares to other charger options (without naming brands)
- Best for a basic setup: If you want a simple 2-slot charger for 3.7V Li-ion cells, this kit matches that use case well.
- Not ideal if you need many bays: Multi-bay chargers can reduce downtime if you cycle through batteries often.
- Not ideal for mixed battery types: If your collection includes NIMH or 1.5V cells, look for a charger designed for those chemistries instead of relying on this one.
- Not ideal if you need advanced charging features: This kit is described in practical terms, so if you want specialized protection monitoring or detailed readouts, you will likely need a more feature-rich charger category.
Verdict
The 2-Slot 18650 Battery Charger Set is a solid buy for anyone running 3.7V flat-top Li-ion cells in devices that take 18650, 26650, 18500, or 14500. The included four 3300mAh batteries make it convenient, and buyers point to a progress-style display and reliable charging performance for everyday use. Skip this kit if you need NIMH or 1.5V charging, or if you require faster multi-cell charging beyond two bays.
FAQ
Will this charger work with NIMH or 1.5V batteries?
No. This charger is intended for 3.7V Li-ion cells, and it is not suitable for NIMH or 1.5V batteries.
What battery sizes does it support?
It is designed for 18650, 26650, 18500, and 14500 Li-ion batteries.
Does the kit include batteries, or just the charger?
The kit includes four batteries rated at 3.7V and 3300mAh, plus the 2-slot charger.
How many batteries can it charge at once?
It has two slots, so it can charge two cells at a time.
Is it suitable for vape batteries?
If your vape uses compatible 18650-size, 3.7V Li-ion flat-top batteries, this kit is built for that general category of use.
What should I check about battery fit before ordering?
Confirm the chemistry (3.7V Li-ion), the battery size (18650/26650/18500/14500), and whether your device requires flat-top or a different top style.
Specifications
| Product Title | 2-Slot 18650 Battery Charger Set 4pcs 3300mAh Flat Top, Universal 3.7V Li-ion Batteries Charger for 18650 26650 18500 14500(No Suitable for nimh & 1.5V Batteries) |
|---|---|
| Category | Electronics > Household Batteries, Chargers & Accessories > Battery Chargers |
| Brand | JESSPOW |
| Manufacturer | JESSPOW |
| Model Number | Rechargeable Battery Charger |
| Product Dimensions | 12"D x 15.99"W x 5"H |
| Output Voltage | 3.7 Volts (DC) |
| Input Voltage | 3.7 Volts |
| Compatible Devices | 18650, 26650, 18500, 14500 Li-ion batteries |
| Connector Type Used on Cable | Li-ion battery connector |
| Number of Ports | 2 |
| Item Dimensions D x W x H | 12"D x 15.99"W x 5"H |
| Warranty Description | no |
| Unit Count | 4.0 Count |
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