The Fogstar Energy FS4000 is a high-capacity 21700 battery, boasting an impressive 4000mAh capacity. This accessory is vital for any vape kit which requires a rechargeable external battery. Designed to deliver reliable performance and longevity, there is a continuous discharge rate of 25A and an impressive max discharge rate of 40A.
With its advanced technology, the FS4000 ensures consistent power output, enhancing the overall user experience. Engineered for efficiency, the FS4000 features a durable construction that supports both safety and performance. Its 21700 size allows for a larger energy storage capacity compared to standard batteries, which translates to longer usage times between charges when vaping.
This makes it particularly appealing for users who demand high performance from their devices, particularly when vaping Sub-Ohm vape mods.
Key Features
- Model: FS4000
- 21700 size
- 4000mAh battery capacity
- Maximum discharge of 40A
- Nominal voltage of 3.6V
- Maximum voltage of 4.2V
- Flat-Top style
- Protection: None
Contents
- 1 x Fogstar Energy 21700 Battery
Warning
- Lithium-Ion cells should be charged on a dedicated charger rated specifically for Lithium-Ion cells.
- Never leave a battery unattended whilst charging.
- Keep away from animals and children.
- Wraps and insulators should be periodically inspected for tears or damage. If a battery has a damaged wrap, it should be repaired or disposed of immediately.
- Batteries usually have a cycle life of between 200-500 cycles (varies with manufacturer) before noticeable capacity drop off. Batteries should be recycled at this time.
- Do not crush, incinerate or modify.
- Only use within manufacturers specification.
