Steady Beam Power Cell Rechargeable Battery - Blue AA

Rechargeable AA 3.7v Battery for CREE LED Flashlights – In Stock and Ready to Use

If you're looking for a rechargeable AA 3.7v battery that just works in your CREE LED flashlight, this UltraFire lithium-ion cell is the reliable power source you were hunting for. It fits the CREEQ5BK and any CREE LED flashlight that takes AA batteries, delivers consistent 3.7v output, and can be recharged up to 800 times so you spend less on disposables and get more run time from gear you already trust.

Why This Rechargeable AA 3.7v Battery Is Worth Buying

Buyers who depend on their flashlights don’t want surprises from their batteries. This rechargeable AA li-ion cell is built for repeatable, predictable performance. The 3.7v output is designed for CREE-style LED flashlights that are engineered around higher-voltage rechargeable cells, giving you strong, steady brightness instead of the sag you get from tired alkaline AAs. Over the life of up to 800 recharge cycles, this one battery can replace hundreds of single-use cells.

Because it’s a standard AA size with a cylindrical form factor, it drops into compatible CREE LED lights without awkward spacers or odd adapters. The blue UltraFire shell is easy to identify in a drawer, range bag, or glove box, so the right battery is always quick to grab.

Quality You Can Count On in a Rechargeable AA 3.7v Battery

With batteries, quality is about more than capacity—it’s about consistency and safety. This rechargeable AA 3.7v battery uses proven lithium-ion chemistry in the 14500-class format, wrapped in a durable blue outer shell with clearly marked terminals. The raised positive tip and flat negative base make orientation simple, even in low light.

Designed Around CREE LED Flashlight Performance

CREE LED flashlights are engineered for bright, efficient beams, and they perform best with the proper voltage and chemistry. This rechargeable AA battery is specifically suited for CREEQ5BK and similar CREE LED models that accept 14500-style cells. Instead of trying to push alkalines beyond their comfort zone, you get a li-ion cell that delivers the voltage your driver circuit expects, supporting stable output and reliable runtime.

Up to 800 Recharge Cycles for Long-Term Value

Rechargeable cells pay for themselves when they hold up to repeated use. This rechargeable AA 3.7v battery is rated for up to 800 recharge cycles under normal use. That means a single cell can stand in for hundreds of disposable AA batteries over its life. Whether you’re using your CREE flashlight for work, camping, emergency kits, or daily carry, you get a dependable power source that’s cheaper per use and easier to manage than constantly buying new alkalines.

Compatibility and Use: What This Rechargeable AA Battery Fits

This rechargeable AA 3.7v battery is a direct fit for the CREEQ5BK flashlight and works with CREE LED flashlights designed to run on 14500/3.7v cells in AA size. If your light specifically lists compatibility with 3.7v rechargeable AA or 14500 batteries, this cell is a match.

It is not a drop-in replacement for all devices that use standard 1.5v alkaline AAs. Some electronics are not designed for the higher 3.7v li-ion voltage. Always confirm that your flashlight or device supports 3.7v rechargeable AA (14500) cells before use. In supported CREE LED flashlights, this higher voltage translates into better sustained brightness and reliable performance.

Real-World Benefits: Why Buyers Choose This Rechargeable AA 3.7v Battery

When you’re comparing rechargeable batteries for your CREE flashlight, the deciding factors are simple: Will it fit, will it run bright, and will it last? This cell answers all three.

• Fit: AA form factor tailored for CREEQ5BK and similar CREE LED flashlights that accept 3.7v rechargeable cells.
• Brightness: Li-ion 3.7v chemistry supports strong LED output when used in properly rated lights.
• Longevity: Up to 800 recharge cycles mean less waste, fewer purchases, and a power solution you can rely on over time.

Instead of juggling half-used disposables, you get a clearly branded UltraFire battery you can recharge, reuse, and trust.

What Buyers Ask Before Purchasing This OTF Knife

Is this OTF knife worth the price?

For this rechargeable AA 3.7v battery, value comes from repeatable use. One li-ion cell that you can recharge up to 800 times replaces stacks of throwaway AA batteries. If you use your CREE flashlight regularly—on the job, at the range, on night hikes, or in emergency kits—the cost per use drops quickly. Instead of paying every time you need fresh power, you pay once and recharge, keeping your trusted light ready without ongoing battery runs.

Is this OTF knife legal?

This product is a rechargeable AA 3.7v lithium-ion battery, not a knife, so there are no knife-related legality issues. Standard battery safety and transport guidelines apply: don’t short the terminals, avoid damage to the casing, and follow any local rules for shipping or air travel with lithium-ion cells. Used properly in compatible CREE LED flashlights, it’s a straightforward, everyday power solution.

How fast does this ship?

This rechargeable AA 3.7v battery ships from stock, so you’re not waiting on a backorder to power your CREE flashlight. Orders are typically processed promptly, and your UltraFire cell is packed securely to protect the li-ion chemistry in transit. The result: you get a ready-to-use rechargeable battery on your doorstep without delay, so you can test it in your CREEQ5BK or other compatible CREE LED light as soon as it arrives.

Close the Loop: A Proven Rechargeable AA 3.7v Battery Ready for Your CREE Light

If you already know you want a rechargeable AA 3.7v battery for your CREE LED flashlight, this UltraFire cell gives you the straightforward answer: known brand, correct chemistry, AA size fit for CREEQ5BK and similar lights, and up to 800 recharge cycles of usable life. No guesswork, no overcomplication—just a dependable li-ion power source that keeps your flashlight ready when you need it. Add it to your kit once, charge it, and you’ve solved your CREE flashlight power problem for the long run.