18650 Lithium Ion Batteries

OrcaTorch 18650 USB Rechargeable Battery - 3400mAh

1 reviews

SKU: BLRB18650U

^$13.95

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In Stock

DESCRIPTION

A high-performance, environmentally-friendly 18650 battery with 3400mAh capacity for Orca Torch and electronic devices.

OrcaTorch 18650 USB Rechargeable Battery - 3400mAh

1 reviews

SKU: PCKBLRB186U2

~~$27.90~~ Save: $1.95 (7%)

^$25.95

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In Stock

DESCRIPTION

A pack of two high-performance, environmentally-friendly 18650 USB rechargeable batteries with 3400mAh capacity.

SeaLife XTAR Mini Charger for 18650 Battery

3 reviews

SKU: SLF9825

^$15.95

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In Stock

DESCRIPTION

A compact charger for 18650 batteries that connects to USB wall chargers, reducing battery downtime.

Bigblue Battery Cell 18650 x 7 Battery Pack for VL15000P-Pro Series Lights

SKU: BBL186507

~~$262~~ Save: $102.01 (39%)

^$159.99

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In Stock

DESCRIPTION

A reliable battery pack with 7 18650 cells for Bigblue VL15000P-Pro Series Lights.

OrcaTorch 18650 USB Rechargeable Battery - 3400mAh

1 reviews

SKU: PCKBLRB186U3

~~$41.85~~ Save: $4.89 (12%)

^$36.96

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In Stock

DESCRIPTION

A pack of 3 high-performance, environmentally-friendly 18650 USB rechargeable batteries for Orca Torch and electronic devices.

Bigblue Battery Cell 18650 x 4 Battery Pack for TL VL VTL Series Light

SKU: BBL186504

^$152

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In Stock

DESCRIPTION

A convenient battery pack for Bigblue TL VL VTL Series Lights, ensuring you never run out of power.

Bigblue Battery Cell 18650 x 4 Battery Pack for TL3500P & TL3800P Supreme Tech Lights

SKU: BBL186504S

^$152

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In Stock

DESCRIPTION

A convenient battery pack for Bigblue TL3500P & TL3800P Supreme Lights, ensuring you never run out of power.

Bigblue 18650 Rechargable Battery - 3400mAh

SKU: BBL18650G

^$34.99

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In Stock

DESCRIPTION

A spare battery cell for Bigblue 900/1000/1100/1200 series lights, perfect for save-a-dive kits.

GoPro Enduro Rechargeable Li-Ion Battery for HERO11/HERO10/HERO9 Camera

1 reviews

SKU: GPENDURO

^$34.99

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In Stock

DESCRIPTION

A rechargeable battery for HERO11/HERO10/HERO9 cameras that improves cold-weather performance and charging speed.

XS Scuba LT350 380 Lumens USB Rechargeable Dive Light

SKU: XSSLT350DL

^$119.95

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In Stock

DESCRIPTION

A compact and durable USB rechargeable dive light with dual mode and long battery life.

OrcaTorch B63 Battery Pack for D630 Canister Dive Light

SKU: BLRB63BD630

^$169.95

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In Stock

DESCRIPTION

A powerful and versatile battery pack designed for the OrcaTorch D630 Canister Dive Light.

OrcaTorch UC02 Battery Charger

SKU: BLRUC02

^$12.95

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In Stock

DESCRIPTION

A compact and versatile dual-slot battery charger with USB-Type C for efficient and fast charging of multiple dive light batteries.

Blue Reef 18650 2600mAh Battery

SKU: BLR3400B

^$12.99

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In Stock

DESCRIPTION

A high-capacity blue lithium-ion battery delivering 2600mAh and stable 3.7V output for reliable power.

Bigblue Battery Cell 18650 x 4 Battery Pack for TL3500P & TL3800P Supreme Tech Lights Open Box

SKU: BBL186504SOB

~~$152~~ Save: $45.60 (30%)

^$106.40

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In Stock

DESCRIPTION

A rechargeable lithium-ion battery pack providing reliable power for TL3500P and TL3800P Supreme tech lights.

Seac 18650 Battery Charger for T5 Dive Light

SKU: SECOCR3

^$30.60

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In Stock

DESCRIPTION

A compact USB charger designed for quick, safe recharging of 18650 lithium-ion batteries in dive lights.

Seac R3 400 Lumens Dive Light

SKU: SECR3

^$117

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In Stock

DESCRIPTION

A durable aluminum dive torch with 400 lumens, adjustable beam, and watertight NBR O-ring seal.

Bigblue HL1000XW 1000 Lumens Head Lamp

2 reviews

SKU: BBLH1000XW

^$219.99

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In Stock

DESCRIPTION

A compact and lightweight head lamp with 1000 lumens and 120-degree beam angle for versatile use.

OrcaTorch H4 Battery Charger

SKU: BLRH4

^$44.95

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In Stock

DESCRIPTION

A versatile and efficient battery charger for dive lights, compatible with multiple battery types and includes car and home chargers.

OrcaTorch H2e Battery Charger

SKU: BLRH2E

^$19.95

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In Stock

DESCRIPTION

A versatile and efficient battery charger for various dive light batteries, with dual power sources and fast charging capabilities.

OrcaTorch BR121C Battery Charger

SKU: BLRBR121C

^$7.95

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In Stock

DESCRIPTION

A high-efficiency, portable battery charger compatible with 18650 and 26650 batteries for dive lights.

OrcaTorch D511 with Extra Battery Set Package

SKU: PCKBLRD5OB

~~$187.85~~ Save: $12.90 (7%)

^$174.95

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In Stock

DESCRIPTION

A powerful 2200 lumens dive light with a narrow beam, made from aircraft-grade aluminum. Includes an extra battery.

OrcaTorch D850 & D580 Package

SKU: PCKBLRODD5

~~$289.90~~ Save: $19.91 (7%)

^$269.99

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In Stock

DESCRIPTION

A powerful and durable scuba diving light package with adjustable beam and rechargeable battery.

OrcaTorch H2 Battery Charger

SKU: BLRH2

^$29.95

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In Stock

DESCRIPTION

A versatile and efficient battery charger for dive lights, supporting multiple battery types and offering convenient dual power sources.

OrcaTorch BR223 Battery Charger

SKU: BLRBR223

^$12.95

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In Stock

DESCRIPTION

A durable and efficient battery charger with dual bays for simultaneous charging of various battery types.

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18650 Lithium Ion Batteries

Whether you’re gearing up for a spring dive trip, prepping your underwater photography rig, or simply ensuring your essential devices are ready for adventure, 18650 lithium-ion batteries offer the performance and reliability needed for demanding, high-drain equipment. These cylindrical cells, measuring 18mm by 65mm, have become the go-to power source for a wide range of applications, from high-powered dive lights to advanced underwater cameras, scooter batteries, and even backup power banks that keep your devices charged between dives. Their popularity among enthusiasts and professionals alike is rooted in their impressive energy density, which allows them to store a substantial amount of power relative to their size, and their ability to deliver consistent voltage output over many recharge cycles. As the days grow longer and the water warms up in March, divers and outdoor explorers often find themselves relying on the dependable performance of 18650 lithium batteries to extend their time in and around the water, whether on night dives, cave explorations, or multi-day expeditions.

Selecting the right 18650 battery involves more than just picking up any cell off the shelf. Capacity, measured in milliamp hours (mAh), typically ranges from 2000mAh to 3500mAh, and a higher number means more stored energy—ideal for extended use in powerful dive torches or video lights. However, it’s equally important to consider the continuous discharge current, especially if you’re powering devices that draw a lot of energy quickly, like underwater scooters or high-output strobes. Some 18650 li batteries are equipped with a built-in protection circuit board (PCB), which safeguards against over-discharge, short circuits, and overheating. This feature is particularly valuable in unpredictable environments, providing peace of mind when you’re far from the nearest charger or replacement. For those who prioritize safety and longevity, understanding the different chemistries—such as Lithium Cobalt Oxide (LCO), Lithium Manganese Oxide (LMO), Lithium Nickel Manganese Cobalt Oxide (NMC), and Lithium Iron Phosphate (LFP)—can help match the battery to your specific needs. Each chemistry brings its own balance of energy density, cycle life, and stability, so it’s worth considering how your gear will be used before making a choice. The "highest rated" 18650 battery meaning often refers to a combination of high capacity, robust safety features, and proven reliability, all of which are critical when your equipment’s performance can make or break an adventure.

Gifting an 18650 battery to a fellow diver, underwater photographer, or outdoor enthusiast is a practical gesture that demonstrates thoughtfulness and understanding of their passion. These batteries make excellent stocking stuffers or additions to a spring travel kit, ensuring that favorite gadgets are always ready for action. Whether for a seasoned diver who needs backup cells for a technical dive or a beginner assembling their first underwater kit, a quality 18650 lithium battery is a versatile and welcome addition. As you browse our curated selection, you’ll find options tailored to a variety of devices and user preferences, from protected cells for extra safety to high-capacity models for those marathon days on the water. For further details on compatible battery types, chemistries, and additional options, be sure to explore our comprehensive guide at Lithium Ion Cell Batteries. With the right 18650 battery in your kit, you can focus on making the most of your time outdoors, confident that your essential gear will perform when it matters most.