1 2

CountyComm

Spare 10440 Cell Battery

$6.50 Sold out
Shipping calculated at checkout.

10440 Lithium-Ion 3.7V 350mAh Rechargeable Battery

Compact Power for High-Output Devices. Built for the Serious User.


Designed for High-Performance Flashlights

The 10440 Lithium-Ion 3.7V 350mAh Battery is built for users who require more than what a standard AAA can deliver. With 3.7V output and 350mAh capacity, it powers select high-lumen tools—like the ReyLight Copper AAA/10440 flashlight—with increased brightness and extended runtime.

This cell is not for casual use. It’s engineered for compatibility with smart, BMS-equipped devices that are designed to handle higher voltage. When used correctly, it offers repeatable, reliable performance for tactical lighting, EDC kits, and professional loadouts.


Why Choose This Battery

  • High Output Performance – 3.7V power increases brightness for compatible lights

  • Rechargeable Efficiency – Up to 2000 cycles with proper charging care

  • Compact Energy – AAA-sized cell fits select high-performance lights

  • Trusted by Enthusiasts & Pros – Preferred by flashlight builders and EDC users who know their gear


Specifications

  • Model: 10440 ICR Lithium-Ion

  • Voltage: 3.7V

  • Capacity: 350mAh

  • Size: Diameter 0.41 in, Height 1.75 in

  • Max Charge Voltage: 4.2V

  • Recommended Charge Rate: 0.5A–1A

  • Cycle Life: Up to 2000 cycles (with proper care)

  • Packaging: Ships via ground only (Lithium hazmat compliance)


Critical Usage Warning – Read Before Purchase

This battery is NOT compatible with standard AAA flashlights.
Attempting to use it in 1.5V devices will destroy your gear and void warranties.


Safe Handling Guidelines

  • Use only in devices designed for 3.7V 10440 lithium-ion cells

  • Charge only with verified 10440-compatible lithium-ion chargers

  • Do NOT store loose—always use a protective battery case

  • Avoid contact with water, heat, or metal objects

  • Do not use damaged batteries (torn wraps, dents, or exposed insulators)

  • Never overcharge above 4.2V or discharge below 3.0V


Liability Statement

By purchasing this battery, you accept full responsibility for proper handling, usage, and storage. Misuse of lithium-ion batteries can result in fire, injury, or worse. This battery is for experienced users only.


High-performance gear requires high-performance power—and this cell delivers, when used with intent and responsibility.

Add it to your kit only if you know what you're doing.

Product information

Stay Ready Outdoors — Return & Refund Policy

Last Updated: February 27th, 2026

At Stay Ready Outdoors, we stand behind the quality of our products and want you to be completely satisfied with your purchase. If you need to return an item, please review our policy below.


Returns

We offer a 30-day return policy, meaning you have 30 days from the date you receive your item to request a return.


Return Eligibility

To qualify for a return, your item must be in like-new condition, meeting the following criteria:

  • Unworn, unwashed, and with all original tags and stickers still attached

  • Free of any scents like perfume, cologne, or smoke

  • Free of any marks, stains, or pet hair

  • In its original packaging, including all accessories

  • Must include proof of purchase (receipt or order number)


How to Start a Return

To initiate a return, email us at info@stayreadyoutdoors.com with your order details. Once approved, you’ll receive return instructions and a prepaid shipping label.

For standard parcel items:
The cost of return shipping will be deducted from your final refund.

For oversized or freight items:
Return shipping is the customer’s responsibility (see Oversized and Freight Item Returns below).

Important: Items sent back without prior approval will not be accepted.


Return Address

Stay Ready Outdoors
ATTN: Returns
15236 Las Flores Ave
La Mirada, CA 90638


Oversized and Freight Item Returns

Due to the size, weight, and freight handling requirements of certain products, free or prepaid return shipping does not apply to oversized or heavy items.

This includes, but is not limited to:

  • Rooftop tents

  • Pro Eagle jacks

  • Large recovery equipment

  • Freight-shipped or oversized products

Important details:

  • Customers are responsible for return shipping costs on these items unless the product arrives damaged, defective, or incorrect.

  • Original outbound shipping charges (if any) are non-refundable.

  • Freight returns must be properly packaged and may require coordination with Stay Ready Outdoors support.

  • Items must be returned in new, unused condition with original packaging and all components.

Stay Ready Outdoors reserves the right to determine whether an item qualifies as oversized or freight-required based on weight, dimensions, or carrier requirements.


Damaged, Defective, or Incorrect Items

Please inspect your order upon arrival. If your item is damaged, defective, or incorrect, contact us at info@stayreadyoutdoors.com within 7 days so we can evaluate and resolve the issue promptly.


Non-Returnable Items & Exceptions

Some items are non-returnable, including:

  • Briefs (due to hygiene reasons)

  • Sale items (these sales are final)

  • Gift cards

  • Engraved or customized items

  • Perishable goods (e.g., food)

  • Personal care items (e.g., hygiene or beauty products)

  • Hazardous materials (e.g., flammable liquids or gases)


Food or Drink Products — All Sales Final

Due to the nature of long-term food storage, all sales on food or drink products are final. We do not accept returns or exchanges on food or drink products for any reason including incorrect order, change of mind, or shipping delays.

Replacements will only be issued in the event of a verified manufacturing defect or shipping damage, which must be reported within 5 days of delivery with supporting photo documentation.


Products Fulfilled via Shopify Collective

Some items sold by Stay Ready Outdoors are fulfilled by third-party vendors through Shopify Collective. These items follow slightly different return procedures:

Return Window
Returns must be initiated within 30 days of the purchase date.

Who Handles the Return
Returns and exchanges for these products are handled directly by the originating business. However, you may contact Stay Ready Outdoors at info@stayreadyoutdoors.com for assistance facilitating a return or exchange.

Customer Responsibility for Shipping Costs
Shipping cost responsibility varies by vendor. Some vendors offer free returns or exchanges, while others may require customers to pay return shipping.

Size Exchanges
If a return is for a size exchange only, the replacement item will be shipped once the original is received and inspected, following the vendor’s policy.

Refunds
If a refund is approved after inspection, the originating business will notify Stay Ready Outdoors and the refund will be processed to the original payment method.

Price Changes
Prices for Shopify Collective products are subject to change without notice.


Vendor-Specific Note

The Buffalo Wool Company
Items fulfilled by The Buffalo Wool Company through Shopify Collective follow the same return procedures listed above. Customers are responsible for return shipping costs unless otherwise stated by the vendor.

All other eligibility requirements and non-returnable item restrictions in our standard policy still apply unless otherwise stated.


Exchanges

The fastest way to exchange an item is to initiate a return for the original item and, once accepted, place a new, separate order for the desired item.


European Union Customers — 14-Day Cooling-Off Period

If your order was shipped to the European Union, you have the right to cancel or return it within 14 days of delivery for any reason.

To be eligible, items must be unused, with original tags and packaging, and include proof of purchase.


Refunds

Once we receive and inspect your return, we will notify you of approval. If approved, your refund will be issued to the original payment method within 10 business days, less applicable return shipping costs.

Please note:

  • Your bank or credit card company may require additional time to post the refund.

  • If you have not received your refund within 15 business days of approval, contact info@stayreadyoutdoors.com.


Need Help?

If you have any questions about your return or refund, we’re here to help:

Email: info@stayreadyoutdoors.com

Recently viewed products