Dear Customer,
After careful consideration of our long-term business direction, geekmaxi.com will be discontinuing operations as an online store. As of August 21, 2026, we will no longer be accepting new orders.
Looking ahead, we are working with a number of established retail partners so that our customers can continue to find the products they've come to know from us. More details will be made available on our homepage.
We're sincerely thankful for the years of business you've entrusted to us.
Questions can be directed to our team at support@geekmaxi.com.
geekmaxi.com
/ Europe
2-year Warranty
EU Local Delivery
Ship Within 24 hours
Note: Stock is limited
Availability date: 31-03-2026
1024Wh Capacity & 1200W Continuous Power
With a 1024Wh battery and 1200W rated output (2400W peak), the FOSSiBOT F1200 easily powers your essential devices – from speakers, guitars, and coolers to laptops, tools, and medical equipment. Perfect for outdoor camping, backyard parties, family emergencies, or a long day on the job site.
Ultra-Long Life & LiFePO4 Safety
Equipped with high-quality LiFePO4 batteries, the F1200 delivers over 4000 charging cycles while retaining 80% capacity after 5–6 years. With EV-grade cells and intelligent BMS protection, it guards against overcharge, overheating, short circuits, and extreme conditions, ensuring both safety and durability.
Flexible Charging & Multi-Device Output
Choose your preferred charging speed with the 5-level adjustable input (200W–1000W) – from gentle charging to ultra-fast 0–80% in just 49 minutes. With 7 output ports, you can power multiple devices simultaneously, making it a truly versatile energy solution for any scenario.
Advanced BMS Intelligent Protection
The integrated Battery Management System (BMS) ensures real-time monitoring and multiple protection mechanisms. It optimizes battery efficiency, prolongs service life, and provides peace of mind with every charge and discharge.
Pure Sine Wave & <10ms UPS Function
The F1200 provides grid-quality pure sine wave output, delivering clean and stable power for sensitive electronics. With a UPS switchover time of under 10ms, critical devices like CPAP machines keep running without interruption during outages.
Lightweight & Portable Design
Despite its powerful capacity, the F1200 weighs just 11.5 kg – lighter than a case of beer. Its compact build makes it easy to transport for camping, fishing, road trips, or outdoor adventures. Wherever you go, reliable power goes with you.
Took it on a camping trip last weekend, and it was a game-changer. We powered everything from our mini-fridge to the lights and even charged all our phones without a hitch. And yeah, it’s a relief not having to deal with loud, clunky generators anymore—this one’s surprisingly quiet. The fast charging saved the day when we forgot to charge it ahead; we were set in less than an hour. Slightly heavier than I expected, but still easy enough to carry around. Honestly, not sure how we managed before having this thing.
Took it camping and it handled everything like a champ—super reliable and didn’t even make a fuss (so quiet I thought it might be sneaking naps). Charges ridiculously fast too. Minor gripe? It’s not exactly pocket-sized, but hey, we can’t all be perfect. After-sales team? Friendly enough that I half expected them to invite me to their family BBQ!
Takin' this battery pack for a test run on our weekend camping trip was a game-changer. It's super quiet, which I'm super thankful for 'cause we were tryin' to enjoy nature, y'know? Knowing I can keep the gadgets juice up fast and the silent operation made it a must-have for our outings.
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/ United Kingdom
Took this thing camping, and it was a champ! Super light, easy to carry around, and powered everything I needed. Love how fast it charges up—so convenient, especially when you're in a rush. It's not whisper-quiet, but honestly, it's not too loud either, even when it's working hard. Feels solid and well-made, so I’m hopeful it’ll last a long time.
The website support was helpful, but adding a bit more detail to the FAQs would save some back-and-forth.