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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.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Any questions, please email to info@sperasflashlight.com
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The SPERAS S34 is a high-performance 18650 lithium battery with a massive 3400mAh capacity, delivering long-lasting power for your devices. Designed for reliability, it supports a continuous output current of 5A and a maximum current of 8A, making it ideal for high-power applications and tactical gear.

Power your equipment longer. The SPERAS S34 boasts an impressive 3400mAh (12.58Wh) energy reserve inside a standard 18650 form factor. It provides extended runtimes, reducing the need for frequent recharges during long outdoor trips or demanding shifts.

Safety is paramount. Built with an advanced internal protection circuit board, the S34 effectively guards against overcharge, over-discharge, and over-current.
It securely supports a continuous output current of 5A and a maximum burst of 8A, ensuring reliable and safe operation at all times.

Lithium batteries should never be carried loose. Keep your batteries organized and safe from accidental short circuits with dedicated plastic storage cases, perfect for throwing into your EDC bag, camping backpack, or tactical pouch.
| Brand | SPERAS |
| Model | S34 |
| Battery Type | 3.7V 18650 Lithium battery |
| Battery Capacity | 3400mAh |
| Battery Voltage | 3.7V |
| Power | 12.58Wh |
| Continue Output Current | 5A |
| Max Output Current | 8A |
| Dimensions (Length x Diameter) | 69.06mm (+0.3~0.5mm) x 18.42mm (+0.1~0.15mm) |
| Net Weight | 48.4g |
| Gross Weight | 56.2g |
| Warranty | 1 year; If any problem, please contact us to exchange or get a new one. |

Yes, it is a high-performance 3.7V 18650 rechargeable lithium-ion battery. Please use a compatible high-quality charger for safe operation and maximum longevity.
Absolutely. It is built with an advanced internal protection circuit that effectively guards against overcharge, over-discharge, and over-current, ensuring reliable and safe operation at all times.
The S34 is ideal for high-performance flashlights, tactical gear, headlamps, and any electronic devices that support standard button-top 18650 batteries.
The battery supports a stable continuous output current of 5A, with a maximum output capability of up to 8A for short bursts.
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