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FOSSIBOT FB3840 3840Wh Battery
5043679 FB3840
6942580504971
Shipping 7-11 b.d.
All about the product
FOSSIBOT FB3840
The "FOSSIBOT FB3840" is an additional 3840 Wh capacity battery designed for use with the "FOSSIBOT F3600 Pro" charging station. The LiFePO4 cells used provide high durability and over 6500 charge cycles down to 50% of the original capacity, meaning many years of use. The module allows you to expand the energy storage system up to 11,520 Wh by connecting two additional units. The "FB3840" can also function as a portable DC power source due to its 100 W USB-C, 18 W USB-A, and additional 12 V outputs, making it ideal for travel, mobile work, and powering emergency devices.

Increased Capacity for Longer Device Runtime
By connecting the FB3840 battery to the F3600 Pro station, the runtime of connected devices is significantly extended. One additional unit increases the system capacity to 7680 Wh, while two expansion batteries allow for a total capacity of up to 11,520 Wh. This solution is ideal for use in RVs, vacation homes, camping, or as a backup power source at home. With high capacity, users can enjoy electronics, lighting, and everyday devices for longer without needing to frequently recharge the entire system.

Wide Port Selection and Convenient Power Source for Devices
The FB3840 features a practical set of DC ports that allow for direct power to many devices without additional adapters. Users can take advantage of the USB-C and USB-A ports, a 12 V / 10 A cigarette lighter socket, a 12 V / 25 A XT-60 output, and DC5521 ports. This enables the battery to power smartphones, laptops, LED lights, portable coolers, fans, and equipment used in RVs and campers. The 100 W USB-C port allows for fast charging of modern laptops and mobile devices, making it convenient to work away from home or the office. 230 V AC devices can be powered by connecting the battery to the compatible "FOSSiBOT F3600 Pro" station.

Sturdy Construction and Safe Operation
The FB3840 is designed for regular use in various conditions. The casing includes a clear LCD screen that displays the charge level and current operating parameters of the device. The integrated BMS system monitors battery performance and protects it from overheating, overcharging, overvoltage, short circuits, and excessive discharge, enhancing safety during everyday use. Despite its large capacity, the device remains portable, and convenient handles aid in transportation. The ability to charge and discharge simultaneously further improves the functionality of the entire power system.

Efficient Power System with Simultaneous Operation and Charging
The "FOSSiBOT FB3840" supports simultaneous charging and discharging, allowing it to continuously power connected devices while they are being charged. The clear LCD screen shows charge levels, input, and output parameters in real-time, making it easy to monitor the entire device's performance. The device, measuring 60.9 × 32.1 × 47.5 cm and weighing 42 kg, is designed for stable operation both at home and off-road.

Included
- FOSSiBOT FB3840 battery
- Parallel connection cable
- Leather handle covers
- User manual
| Manufacturer | FOSSiBOT |
|---|---|
| Model | FB3840 |
| Capacity | 3840 Wh |
| Battery Type | LiFePO4 |
| Lifespan | Over 6500 cycles (down to 50% of original capacity) |
| Compatibility | FOSSiBOT F3600 Pro |
| Expandability | Up to 2 additional FB3840 batteries |
| USB-C Ports | 3 x PD20W, 1 x PD100W |
| USB-A Ports | 2 x QC3.0 18W |
| Cigarette Lighter Socket | 12 V / 10 A |
| XT-60 Output | 12 V / 25 A |
| DC5521 Ports | 2 x 12 V / 3 A |
| Screen | LCD |
| Weight | 42 kg |
| Dimensions | 60.9 × 32.1 × 47.5 cm |
| Operating Temperature | 0°C ~ 40°C |
| Certifications | FCC, CE, PSE, RoHS, UN38.3, MSDS |










