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Free shipping on all order above $49.99 to most countries.
Most flashlights can directly get 5 years warranty; battery and accessories get 1 year warranty.
Any questions, please email to info@sperasflashlight.com
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Designed specifically to meet the high-drain demands of modern compact electronics and tactical gear.
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Provides long-lasting, stable power for your high-drain compact flashlights, ensuring you're never left in the dark during outdoor adventures or daily tasks.
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Officially recommended and precision-engineered for the SPERAS M4 flashlights, offering a perfect fit and optimal lumen output.
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Manufactured with premium lithium-ion chemistry, supporting hundreds of reliable charge cycles while maintaining consistent 3.7V voltage stability.
| Brand | SPERAS |
| Model | PB11 |
| Battery Size / Form Factor | 18350 |
| Battery Chemistry | Rechargeable Lithium-ion |
| Capacity | 1100mAh |
| Nominal Voltage | 3.7V |
| Primary Compatibility | SPERAS M4 |
| General Compatibility | Any standard electronics requiring 3.7V 18350 cells |
The SPERAS PB11 is specifically designed for compact high-drain devices. It is the official recommended power source for the SPERAS M4 and M2R-35 EDC flashlights. It can also be used in other brand devices that accept standard 3.7V 18350 lithium-ion batteries.
You can charge the PB11 using any standard, high-quality lithium-ion battery charger. Additionally, if you are using it in a flashlight with built-in charging capabilities (like the SPERAS M4 with its USB-C port), you can charge the battery directly inside the flashlight.
Yes, the PB11 is a fully rechargeable lithium-ion battery. It is designed to endure hundreds of charge cycles, making it a highly cost-effective and eco-friendly alternative to disposable batteries.
