SPERAS LTH45 4500mAh 21700 battery wrap showcasing integrated USB-C charging port
21700 battery cold weather performance graph SPERAS LTH45 vs standard battery at -40C

SPERAS LTH45 4500mAh 21700 Low Temperature Lithium Battery

$28.99
$28.99
Extreme Environment Power Cell SPERAS LTH45 21700 Battery – 4500mAh Cold Resistant Power 🔋 Designed for extreme environments, the SPERAS LTH45 Lithium Battery delivers reliable performance even in freezing conditions. Compared to standard 21700 lithium batteries, it performs up to 3× better at -40°C/°F, making it an ideal power solution for outdoor gear, tactical flashlights, and harsh-weather applications. ❄️ Rated to -40°C 🔋 4500mAh Capacity 🔌 Integrated USB-C Why Choose SPERAS LTH45? ❄️ Outstanding performance in extreme cold (-40°C / -40°F) 🔋 High-capacity 4500mAh for longer runtime ⚡ Stable output for high-drain devices (10A Max) 🔌 Convenient direct USB-C charging...
Please hurry! Only 10 left in stock
Color: Black
Style: SPERAS LTH45
Subtotal: $28.99

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Free shipping on all order above $49.99 to most countries.

Warranty

Most flashlights can directly get 5 years warranty; battery and accessories get 1 year warranty.

Note

Any questions, please email to info@sperasflashlight.com

 
SPERAS LTH45 4500mAh 21700 battery wrap showcasing integrated USB-C charging port

SPERAS LTH45 4500mAh 21700 Low Temperature Lithium Battery

$28.99

SPERAS LTH45 4500mAh 21700 Low Temperature Lithium Battery

$28.99
Color: Black
Style: SPERAS LTH45
Extreme Environment Power Cell

SPERAS LTH45 21700 Battery – 4500mAh Cold Resistant Power

🔋 Designed for extreme environments, the SPERAS LTH45 Lithium Battery delivers reliable performance even in freezing conditions. Compared to standard 21700 lithium batteries, it performs up to 3× better at -40°C/°F, making it an ideal power solution for outdoor gear, tactical flashlights, and harsh-weather applications.

❄️ Rated to -40°C 🔋 4500mAh Capacity 🔌 Integrated USB-C

Why Choose SPERAS LTH45?

  • ❄️ Outstanding performance in extreme cold (-40°C / -40°F)
  • 🔋 High-capacity 4500mAh for longer runtime
  • ⚡ Stable output for high-drain devices (10A Max)
  • 🔌 Convenient direct USB-C charging support
  • 🛠️ Reliable SPERAS quality and safety standards

Defeat the Freeze: Rated to -40°C

Standard lithium batteries fail quickly when the temperature drops. The SPERAS LTH45 is specifically engineered for low-temperature environments, performing reliably where other power cells shut down.

As shown in the performance data, LTH45 delivers stable voltage and runtime even at -40°C (-40°F), ensuring your tactical lights and outdoor gear stay running when you need them most.

21700 battery cold weather performance graph SPERAS LTH45 vs standard battery at -40C

4500mAh Capacity & Integrated USB-C Charging

With a robust 4500mAh capacity, this battery provides stable energy output (5A Continuous / 10A Max) for high-performance flashlights and devices that demand reliable energy in harsh conditions.

🔋 The innovative integrated USB-C charging port eliminates the need for a separate charger, offering a convenient and efficient recharging method wherever power is available.

SPERAS LTH45 4500mAh 21700 battery wrap showcasing integrated USB-C charging port

Engineered Specifications: Technical Details

Brand SPERAS
Model LTH45
Battery Type 21700 Lithium Battery
Capacity 4500mAh
Voltage 3.6V (Power: 12.6Wh)
Charging USB-C (1A)
Continuous Output 5A
Max Output 10A
Working Temperature -40°C to 60°C
Warranty 1 Year
Length 75mm (+0.3~0.5mm)
Diameter 21.4mm (+0.1~0.15mm)
Net Weight 71.1g (Gross: 78.8g)

Equip Your Extreme Gear

settle for standard power cells that fail in the cold. Upgrade to the SPERAS LTH45 and experience 3× better performance at -40°C with integrated USB-C convenience.

🛒 Select Options & Add To Cart

Secure Checkout | Speras Official Warranty

Frequently Asked Questions

Can this lithium battery be used in extreme cold weather?

Yes, the SPERAS LTH45 is specifically designed for low-temperature environments and performs reliably even at -40°C / -40°F.

Is this battery compatible with all 21700 devices?

It is compatible with most devices that support standard 21700 lithium batteries. However, it is a protected, long-cell (75mm), so always check your device's physical space and voltage specifications before use.

Does the battery support direct USB-C charging?

Yes, the battery supports direct USB-C charging via the built-in port for convenient and efficient recharging.

What devices is this battery best suited for?

This battery is ideal for high-performance tactical flashlights, outdoor gear used by hikers and mountaineers, and any high-drain devices used in cold environments.

Is it safe for high-drain applications?

Yes, with a maximum output of 10A and a stable voltage curve, it is suitable for high-current devices requiring dependable performance.

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