Description

li ion 18650 battery 2000mah 3.7 v rechargeable battery

Specification	Details
Model	Apsenx-18650-2000mAh
Cell Voltage	3.7V
Battery Pack Voltage	3.7V
Voltage Range	2.5V – 4.2V
Cell Capacity	2000mAh
Battery Pack Capacity	2000mAh
Power	7.4Wh
Battery Pack Size	65 × 18 mm
Cycle Life	>800 cycles

Apsenx 18650 Cylindrical Lithium Battery 2000mAh 3.7V

This 18650 cell is basically a solid, no-nonsense battery. The 2000mAh capacity is real—not inflated—and it holds up well in things like high-power flashlights, vapes, power tools, small logistics carts, and electric bikes.

It also keeps its charge nicely over time thanks to low self-discharge tech, so it won’t drain itself while sitting in storage. The internal structure is reinforced to handle heat and vibration, so it’s safe and built to take some rough use.

The size is standard, easy to drop into most devices, and you can recharge it over and over without weird performance drop-offs.

Apsenx has been making 18650s for years, and we can customize almost anything you need—capacity options, wires, connectors, even your own branding or packaging. If you want samples, bulk pricing, or a custom setup for your device, just reach out anytime.

This is a standard 18650 lithium-ion cell with 2000mAh capacity and 3.7V nominal voltage.

It is mainly used in battery pack assembly and OEM products, not usually used as a single standalone battery.

Most customers buy it for production use in consumer electronics or lighting products.

Where it is used

This model is commonly used in:

Flashlights and portable devices

LED flashlights
Headlamps
Portable fans
Small handheld electronics

Solar lighting products

Solar garden lights
Solar wall lights
Small outdoor solar lamps

OEM battery packs

GPS trackers
Security devices
Wireless monitoring products
Custom lithium battery packs

Use in solar lighting

In solar lights, this type of cell is usually used inside a battery pack.

Typical pack structures include 2S or 3S configurations depending on system voltage.

In most cases, it is used in low to medium power solar lights that charge during the day and run at night.

Battery pack production use

This cell is used as a basic unit for assembling battery packs.

Common structures:

2S pack for 7.4V systems
3S pack for 11.1V / 12V systems
3S2P or 3S3P for longer runtime products

When used in packs, cell matching is important for stable performance.

In real applications

In real use, performance depends on the final product design.

This cell is usually chosen for:

daily charge and discharge cycles
moderate power output devices
applications where cost and stability need to be balanced

It is not designed for high-drain industrial systems.

What buyers usually check

For bulk purchase or OEM production, most buyers focus on:

consistency between batches
discharge stability
cycle life under repeated use
how well cells match in battery packs

For mass production, cells are normally tested before assembly.

OEM and wholesale supply

This battery is suitable for:

battery pack factories
solar light manufacturers
OEM electronics producers
wholesale distributors

We supply in bulk and can support different pack configurations based on project requirements.

FAQ

Can I get a bulk order of this 2000mAh 18650 battery?

Yeah, we supply in large quantities. Works for flashlights, small e-bikes, tools, you name it.

What devices will this battery fit?

Flashlights, vapes, small power tools, electric carts, e-bikes — anything that runs on 3.7V.

How long does it last?

Over 800 charge cycles if used normally. Doesn’t drop performance fast.

Will it hold charge if I store it?

Yes, low self-discharge tech keeps it from losing juice while sitting.

Can I get it with protection boards or custom wires?

you can add protection boards, custom connectors, wires, tabs — whatever you need.

Do you do OEM or custom packaging?

Sure. Branding, wire length, packaging, even custom capacity if you need. Samples available too.

18650 Products Knowledge

Reviews

There are no reviews yet.

Be the first to review “18650 2000mAh 3.7 volt Lithium-ion Battery”

18650 2000mAh 3.7 volt Lithium-ion Battery