Solutions
Kararti Solutions develops hardware and software products. Explore FRAGWATT's portable power for gaming laptops, a cold wallet based on radioactive decay entropy, motor fault detection and an enterprise renewable energy platform.
Hardware solutions
Hardware engineered in house
Devices we design ourselves, from schematics to mechanical design: energy, security and space technology.
FRAGWATT
330W portable power for gaming laptopsDelivers 330 W to a laptop like its original adapter. The 24 mm modules stack magnetically. Simulations estimate 71 minutes of LLM training with Trio; the thermal model covers 16 environments. The warranty is two years.
Check out FRAGWATT →Kararti GaN 240
240W USB-C PD 3.1 EPR GaN chargerPFC+ LLC and LM5177 output stage with three LMG3624 GaN switches: 90–264 VAC to 5–48 V in a 92 × 64 × 28 mm housing. The schematic and the visible 3D model are on the engineering page.
See GaN design →DECAYKEY
Cold wallet with radioactive decay entropyIt generates the key by the quantum randomness of harmless K-40 decay in natural potassium. Air-gapped: no Wi-Fi, Bluetooth and USB data line; with signature QR.
Check out cold wallet →DEORBIX
Disposal systems for space debris and obsolete satellitesConcepts for deorbiting a satellite intact so it burns up in the atmosphere: a drag sail, docking plate and capture tug.
Explore space systems →CLIMAGUARD EV
Condensation monitoring and thermal efficiency researchA 12 V laboratory prototype monitors dew point margin on an electronics board. Read-only software explores decisions for a vehicle's existing thermal system. The energy model uses synthetic data; no vehicle test has been performed.
Check out the research →All topics by FRAGWATT
Product
FRAGWATT and your laptop
FRAGWATT family
Solo, Duo, Trio: same 140 × 90 mm base, modules that click together with a magnet. Night Graphite, Sand Titanium and the new Rose Gold.
See family and colors → 0,73kgEverywhere
Beach, train, library, camping. Brick adapter, two cables and no socket plug: single module and single short cable that fits in a sleeve case.
Check out portability → 7flyCompatibility
The KX-T end system looks like the original adapter of the laptop; Emulates Dell/HP 1-Wire and Lenovo/ASUS resistor ID.
Find your connector tip →Power and duration
Runtime at each power level
Runtime
LLM training with Trio 71 minutes full power. Select workload, setup and profile in the calculator; Here is the table of all scenarios.
Calculate your time → 3h+GaN hybrid
With an outlet, a palm-sized USB-C GaN charger supplies the base load while FRAGWATT covers demand peaks. A 240 W GaN charger supports three hours of full-power AAA gaming.
See how it works → 3profileTURBO · BALANCE · ECO
Choose what power adapter your laptop identifies itself as: full power, 75%, or 55%. 92 minutes in Trio LLM with ECO.
Compare profiles →Charging, heat, life
Durability and performance
Charging
240 W with USB-C PD 3.1, 330 W with your laptop adapter, when both are plugged in, Trio reaches 80% in 36 minutes.
Check charging times → 59,3°CThermal performance
Tested in 16 environments: laptop exhaust, 45 °C room, beach in the sun. Even in the worst case scenario, the cell is below 60 °C, zero thermal cutoff.
Check out the heat tests → 2yearWarranty
2 years or 800 full cycles; If the capacity drops below 80%, the module changes. Life model and protections are here.
Read the warranty →Trust and engineering
See what's inside
Safety
TI's battery and power chips, USB-IF certified PD controller, Molicel P45B cell. Which one does what and why was it chosen?
Identify chips → 344componentEngineering
7-page schematic (PDF), component catalogue, auto-routed 6- and 4-layer PCBs, 3D energy flow and CAD.
Open circuit → ₺15.999fromPricing
Solo, Trio and additional Pack. Compare prices, box contents and accessories.
See sets →Software solutions
Data-driven platforms
Signal processing, machine learning, blockchain and computer vision: each with a working code base.
MotorSense
Early fault warning system for enginesAnalyzes the sound of the internal combustion engine in 30 seconds: Welch power spectrum, band energies, comparison with engine profile. Current and vibration signature for electric motors are on the roadmap.
Check out MotorSense →Arkoveya Energy Forward
Corporate renewable energy Forward-PPA platformIt brings together the developer and the corporate buyer in a single working area: project market, company-specific contract, EIP-191 signature, escrow payment, ERC-1155 energy rights, production verification.
Check out Arkoveya →Gesture 3D Viewer
3D model presentation with hand gesturePlaces GLB, STL and OBJ models on the webcam image; hold, rotate, two-handed zoom and presentation lock. Everything is local: camera frames do not come out of the computer.
Check out Gesture 3D Viewer →Sabreza View
Your PC in your pocketManage your PC screen, terminal, files and Claude Code or Codex sessions from your phone. Receive permission requests and notifications while you're away; device pairing and a PIN limit access.
Check out Sabreza View →problem
battery full,
FPS is low again
The gaming laptop draws 180–330 W at full performance. Since its own battery cannot provide this, it reduces the power limit of the graphics card when unplugged. Even if the battery is 100%, the game slows down and rendering and model training takes longer. The solution is usually to carry kilos of adapters with you and look for a socket.
| on laptop battery | with original adapter | with FRAGWATT | |
|---|---|---|---|
| Graphics card power limit (TGP) | Dropped (typical 50–80 W) | Full (typical 140–175 W) | It looks like the laptop adapter is plugged in. |
| laptop battery | Ejaculates quickly, cycle is wasted | It always stays full and hot | Not used; protected by charge limit guide |
| you carry | — | 0.8–1.2 kg adapter, no energy storage | 0.73 kg Solo set, in 97 Wh |
| Do I need a socket? | No, but slow | Yes | no |
Values are typical ranges; It varies depending on the laptop model. Model-by-model measurements will be published in prototype tests.
How does it work
three modes,
single box
FRAGWATT is connected to the laptop with a KX-Link cable and a plug suitable for your brand. The same port also works in reverse: it charges the laptop's own adapter FRAGWATT with 330 W via the KX-D terminal.
On the beach, on the train, on the LAN
The laptop operates at full performance without touching its own battery. The output stage is two-phase: 98.4% efficiency at 330 W, reducing to single phase at light load.
GaN instead of brick adapter
If an outlet is available, a palm-sized USB-C GaN charger carries the base load, handles the FRAGWATT peak moments, and charges itself at idle. With 240 W GaN, AAA gaming lasted 3 hours at full power.
USB-C or your own adapter
When the two are installed together, the Trio charges to 80% in 36 minutes. If left on charge for a long time, the desk mode keeps the cells at 65%.
Data sheet Rev C
technical
features
Values are design goals and simulation results; It will be updated with prototype tests.
| cell | Molicel P45B 21700, 6S1P per module |
|---|---|
| Energy | 97.2 / 194.4 / 291.6 Wh (Solo / Duo / Trio) |
| DC output (KX-Link) | 19.5 / 20.0 V ⎓ 16.5 A · 330 W |
| continuous power | 240W (Solo) 330W (Duo, Trio) |
| output stage | 2-phase bidirectional buck-boost · 98.4% @ 330 W |
| USB-C1 | PD 3.1 EPR (TPS26750, USB-IF certified) input 240 W output 140 W |
| USB-C2 | PD 3.0/PPS output 65 W |
| Charging with adapter | KX-D tip · Up to 330 W |
| Dimensions | Each module 140 × 90 × 24 mm Trio 72.8 mm |
|---|---|
| Weight | Core 620 g Pack 570 g Trio 1.75 kg |
| body | CNC aluminum unibody Night Graphite / Sand Titanium / Rose Gold |
| operating temperature | −20…50 °C ambient (derating may occur above 35 °C) |
| charging temperature | 0…45 °C cell fast charge 15–35 °C |
| protection | AFE (≈100 µs short circuit) + firmware + secondary OVP/fuse |
| interface | OLED · BLE application · single button · light line |
| cards | Power 6 layers 1.6 mm control and Pack BMS 4 layers 1.0 mm |
| Warranty | 2 years / 800 cycles, ≥ 80% capacity |
Security
three layer
protection
The layers work independently of each other.
Battery front end (hardware)
Breaks short circuit in ~100 µs (SPICE: 213 A, 103 µs). Over/under voltage, current and temperature protections are independent of the software.
BMS software
Reduces power from 45 °C, cuts off at 60 °C; balances cells; It does not open an exit until the end is recognized. It passes 82 automated tests.
Secondary protection and insurance
If the cell exceeds 4.35 V, a separate protection IC blows the 3-prong fuse. E-fuse and 22 V surge lock at the output protect the laptop.
Target certifications: UN 38.3, IEC 62133-2, IEC 62368-1, CE (LVD, EMC, RED), RoHS. It will be completed before mass production.
frequently asked questions
FAQ
Why can't it be 1 hour of LLM training with a single module?
Approximately 255 Wh battery is required to power a laptop that draws 235 W for 1 hour. The only battery that can be carried on the plane without approval can be a maximum of 100 Wh. That's why we divided the FRAGWATT into 97 Wh modules: Trio (3 modules) lasts 71 minutes in the LLM training and 92 minutes in the ECO profile.
Can I take it to the beach or camping?
Yes; In the simulation, LLM training with Trio at 35 °C in the shade kept the cells at 38.5 °C, increased to 41.4 °C in direct sun, and the power was not reduced. But the FRAGWATT is not certified against water and sand (IP rating): the fan grill is open. Use in the shade or inside your bag, away from sand and water; Do not charge if it gets wet.
Why isn't it thinner than 24mm?
The diameter of the 21700 cells inside is 21.6 mm; We go down to 24 mm with lower and upper thermal pads and 0.8 mm aluminum. A thinner one means either a low-current cell (reduces FPS) or a shorter-lived high-current pouch cell. We stuck with the 21700 to keep the 2-year warranty and 330W; We went from 32 mm to 24 mm by taking the electronics from the top of the cells and moving them to the vertical boards.
Is a GaN charger necessary?
No. FRAGWATT is designed to work without a plug. The GaN device is only useful when there is an outlet: you can run the laptop at full power and charge the FRAGWATT with a handheld device instead of the laptop's own brick adapter. You can also use your laptop's own adapter with the KX-D tip for charging.
Is there any problem with the hot exhaust of the laptop?
In the simulation, even in front of 55 °C exhaust air, the cells remained below 56 °C; The smart fan turned off to avoid drawing in hot air and a "hot air" warning appeared on the screen. However, it is best to place the device away from the exhaust with a 1 m cable.
Will it affect my laptop's warranty?
The FRAGWATT powers the laptop at the voltage and power rating listed on the original adapter's label; The output cannot be turned on unless the terminal is recognized and there is an overvoltage lock on the output. We will publish the measurement results on a model basis during the testing phase.
Can I carry it on the plane?
Yes. Core and each Pack individually are 97.2Wh; According to IATA rules, spare batteries under 100 Wh can be carried in cabin baggage without airline approval. Carry modules separately in flight. The airline may have its own rules.
Is it difficult to plug the modules together?
No. Just slide the Pack close to the bottom of the Core: four pairs of N52 magnets in the corners self-align and snap the module into place, and the 12-pin pogo connector makes contact. Core recognizes the new Pack, soft-charges the bus capacitors and turns it on if the voltages are equal; It's also safe to plug in with the outlet open. To detach, simply push the slide lock and slide the module.
How is it different from the adapter? Will I really save space in the bag?
A 330W laptop adapter comes with a brick body, a long DC cable going to the laptop, and a separate power cord going to the outlet; That means three pieces and meters of cable in the bag. The FRAGWATT has a single 1 m KX-Link cable, no socket plug. The Solo set weighs 0.73 kg: you can throw it in a lightweight shoulder bag like you would carry a MacBook, but the machine in your hand becomes a full-fledged gaming laptop.
What should I do for my laptop's own battery?
We recommend that you turn on the charging limit in your laptop's software (such as ASUS Battery Health Charging, Lenovo Conservation Mode, MSI Battery Master). Thus, the FRAGWATT's energy goes to the game, not to charge the laptop battery.