26650 5000mAh 3.7V Rechargeable Batteries (2-Pack) - UltraFire
26650 5000mAh 3.7V Rechargeable Batteries (2-Pack) - UltraFire
UltraFire_HIGH_DRAIN_LI-ION_RECHARGEABLE_BATTERY_13 - UltraFire
UltraFire_HIGH_DRAIN_LI-ION_RECHARGEABLE_BATTERY_13 - UltraFire
Continuous_Discharge_Current_10 - UltraFire
Continuous_Discharge_Current_10 - UltraFire
UltraFire 10440 500mAh 3.7V Batteries (2/10-Pack) - Protected - UltraFire
UltraFire 10440 500mAh 3.7V Batteries (2/10-Pack) - Protected - UltraFire
Mercury_Free_Lead_Free_Cadmium_Free_9 - UltraFire
Mercury_Free_Lead_Free_Cadmium_Free_9 - UltraFire
Battery_SafeandReliable - UltraFire
Battery_SafeandReliable - UltraFire
Low_Cost_and_Environmentally_Friendly_11 - UltraFire
Low_Cost_and_Environmentally_Friendly_11 - UltraFire
1-Year_Free_Warranty - UltraFire
1-Year_Free_Warranty - UltraFire
26650 5000mAh 3.7V Rechargeable Batteries (2-Pack) - UltraFire
26650 5000mAh 3.7V Rechargeable Batteries (2-Pack) - UltraFire
26650 5000mAh 3.7V Rechargeable Batteries (2-Pack) - UltraFire
26650 5000mAh 3.7V Rechargeable Batteries (2-Pack) - UltraFire

UltraFire® 26650 Rechargeable Battery

5000mAh | 3.7V 10A | Protected

Powerful and reliable, the UltraFire 26650 rechargeable battery 5000mAh delivers 3.7V, high discharge current, and over 1500 recharge cycles—perfect for flashlights, headlamps, and high-drain devices. Pack of 2, protected and certified for safe use.

Size: 69mm x 26.1mm

SKU: 8590

$35.99
$39.99
SALE 10% OFF

Free Shipping 

Easy Returns

1-Year Warranty
Included

Use Cases

High-Performance Tactical Flashlight

Search and Rescue Gear

EDC (Everyday Carry) Flashlight

DIY E-Bike Battery Pack

PEVs (Personal Electric Vehicles)

Custom Electric Skateboard (esk8)

Modified Electric Scooter

DIY Powerwall

Vanlife Solar Setup

Off-Grid Lithium Battery Bank

RV/Sprinter Van Power System

Ham Radio Power Supply

Amateur Radio Go-Box

Emergency Prepper Gear

Portable Power Station

High Drain Lithium Cell

Off-Grid Broadcasting Power

Specifications

Battery Type

26650 Rechargeable Li-ion
Title

Voltage

3.7 V
Title

Max Continuous Discharge

10A
Title

Capacity

5000mAh
Title

Energy

18.5 Wh
Title

Cycle Life

500+ full charges
Title

Charging Port

Charger Dock
Title

Protection Circuit

Built-in (overcharge, short-circuit)
Title

Operating Temp

-20°C to 60°C (-4°F to 140°F)
Title

Weight

95g
Title

Size

69mm x 26.1mm
Title

Protective Case

Yes
Title

Certifications

CE, FCC, MSDS, UN38.8

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FAQ

Frequently asked questions

Q1: Is the 26650 battery safe to use?

Yes, our 26650 batteries have built-in protection boards and are CE, FCC, MSDS, and UN38.3 certified for safe and reliable use.

Q2: How do I charge and maintain a 26650 battery?

Use a charger compatible with lithium-ion batteries. Avoid overcharging, extreme heat, or short circuits, and store in a cool, dry place when not in use.

Q3: How long does a 26650 battery last?

With proper care, a 26650 battery can last for hundreds of charge cycles, delivering consistent and reliable power.
26650 5000mAh 3.7V Rechargeable Batteries (2-Pack) - UltraFire
UltraFire_HIGH_DRAIN_LI-ION_RECHARGEABLE_BATTERY_13 - UltraFire
Continuous_Discharge_Current_10 - UltraFire
UltraFire 10440 500mAh 3.7V Batteries (2/10-Pack) - Protected - UltraFire
Mercury_Free_Lead_Free_Cadmium_Free_9 - UltraFire
Battery_SafeandReliable - UltraFire
Low_Cost_and_Environmentally_Friendly_11 - UltraFire
1-Year_Free_Warranty - UltraFire
26650 5000mAh 3.7V Rechargeable Batteries (2-Pack) - UltraFire
26650 5000mAh 3.7V Rechargeable Batteries (2-Pack) - UltraFire

UltraFire® 26650 Rechargeable Battery