Replacement Li-ion Battery 2-18650

4.2
Rated 4.2 out of 5 stars
26
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Power your larger or heavy-use Barebones lanterns with the Replacement Li-ion Battery 2-18650. Designed to work seamlessly with the Forest Lantern, Railroad Lantern, and Outpost Lantern, this dual-cell pack gives you extended runtime and consistent output. Swap in the battery and recharge easily through your product’s USB port—no external charger needed.

Note: Do not remove protective film from battery.

• Barebones-Specific Dual Cell Pack: 2 × 18650 cells combined to offer 4400 mAh at 3.7 V (16.28 Wh)
• USB Rechargeable: Charge directly through your Barebones lantern’s USB port
• Recharge Time: Approximately 6–8 hours
• Compatible With: Forest Lantern, Railroad Lantern, and Outpost Lantern

Chemistry: Lithium-ion
Voltage: 3.7 V
Capacity: 4400mAh
Cell Capacity: 16.28 Wh
Charge Cycles: ~500–800
Recharge Time: ~6–8 Hours
Length: 36 mm
Width: 18 mm
Height: 68 mm
Weight: 90 g

Items Included:
1 battery

Materials:
Lithium Compounds – Provide reliable energy storage and long-lasting performance
Graphite Core – Ensures stable charging and discharging cycles
Organic Electrolyte Solution – Allows safe movement of energy within the cell
Protective Separator Film – Keeps internal components safe and balanced
Durable Metal Casing – Shields the battery and adds strength for everyday use
Built-in Safety Features – Includes protective film and safeguards against overheating or overcharging

SKU:
LIV-902

Made in China

• Always use this battery with compatible Barebones products only.
• Charge the battery through the product’s USB port—avoid third-party chargers.
• Fully charge the battery before first use for optimal performance.
• Store in a cool, dry place when not in use. Avoid extreme heat, direct sunlight, or freezing conditions.
• Do not expose to water, puncture, or attempt to disassemble.
• To extend lifespan, avoid running the battery down to 0% repeatedly. Recharge when power runs low.

Q: Is the wrapper on the battery supposed to be removed?
A: No. Do not remove the wrapper. Doing so will permanently damage the battery and cause it to be unusable.

Q: Can I charge this battery outside of my Barebones product?
A: No. This battery is designed to charge safely through the USB port of your Barebones lighting products.

Q: How long will the battery last before needing replacement?
A: With proper care, the battery supports approximately 500–800 charge cycles, which equates to years of regular use.

Q: Will this battery work in other 2-18650 devices?
A: No. It is designed specifically for Barebones products and should not be used in non-Barebones devices.

Q: What happens if the battery won’t hold a charge?
A: If your battery is no longer charging effectively after normal use, it may have reached the end of its charge cycle life.

Q: Is it safe to leave the battery charging overnight?
A: Yes, the built-in protection circuits in Barebones products help prevent overcharging. However, for best practice, unplug when fully charged.

Q: Can I throw my Li-ion 2-18650 battery in the trash?
A: No. Lithium-ion batteries should never be thrown away with household garbage because they can leak harmful materials or pose a fire risk.

Q: How should I dispose of my Barebones 2-18650 battery?
A: Take used batteries to a certified recycling center, local hazardous waste facility, or designated battery drop-off location. Many electronics retailers also offer free battery recycling bins.

Q: Why is proper disposal important?
A: Recycling prevents harmful chemicals from entering the environment and allows valuable materials (like lithium, cobalt, and nickel) to be reused.

California Proposition 65 Warning

WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov

4.2
Rated 4.2 out of 5 stars
Based on 26 reviews
Total 5 star reviews: 16 Total 4 star reviews: 4 Total 3 star reviews: 4 Total 2 star reviews: 0 Total 1 star reviews: 2
DesignRated 4.5 on a scale of 1 to 5
QualityRated 4.5 on a scale of 1 to 5
77%would recommend this product
26 reviews
  • PP
    Paddy P.
    Verified Buyer
    I recommend this product
    Age Range 55 - 64
    I choose Barebones because... Quality Craftsmanship, Sustainability, Support Small
    I use my Barebones product when I'm… At home, In the yard, Entertaining
    Rated 5 out of 5 stars
    16 seconds ago
    Makes recharging a breeze.

    No more going through loads of batteries.

    DesignRated 3.0 on a scale of 1 to 5
    QualityRated 4.0 on a scale of 1 to 5
  • JP
    Jim P.
    Verified Buyer
    I recommend this product
    Age Range 65+
    I choose Barebones because... Product Aesthetic
    I use my Barebones product when I'm… Camping
    Rated 5 out of 5 stars
    9 months ago
    Barebones Railroad Lantern battery issue

    Battery failed after only being used two times in less than a year. I notified Barebones and after confirmation of my purchase receipt, a free replacement was sent. It now works fine and hopefully it was a one off on the failure of the battery.

    DesignRated 5.0 on a scale of 1 to 5
    QualityRated 4.0 on a scale of 1 to 5
  • LB
    Lora B.
    Verified Buyer
    I recommend this product
    Age Range 55 - 64
    I choose Barebones because... Product Aesthetic, Quality Craftsmanship, Customer Service, Support Small, Sustainability
    I use my Barebones product when I'm… Camping, Gifting, Trailer/van camping
    Rated 5 out of 5 stars
    9 months ago
    Awsome customer service!

    The replacement battery for our new lantern arrived quickly as promised!

    DesignRated 5.0 on a scale of 1 to 5
    QualityRated 5.0 on a scale of 1 to 5
  • DR
    David R.
    Verified Buyer
    I recommend this product
    Age Range 45 - 54
    Rated 5 out of 5 stars
    1 year ago
    Great battery

    So far, so good. Works well and we love our lanterns!

    DesignRated 5.0 on a scale of 1 to 5
    QualityRated 5.0 on a scale of 1 to 5
  • LH
    Lori H.
    Verified Buyer
    I recommend this product
    Age Range 55 - 64
    Rated 5 out of 5 stars
    1 year ago
    Replacement batteries

    So far the batteries are working well, we have had lots of rain so have not an opportunity to use them for too long to see how they hold up but so far so good.

    DesignRated 5.0 on a scale of 1 to 5
    QualityRated 5.0 on a scale of 1 to 5