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Skeleton Technologies said in 2020 that its planned SuperBattery, developed with Karlsruhe Institute of Technology (KIT), could charge in 15 seconds. That is a company-announced claim, not an independently verified charging result: the announcement does not specify the test conditions or provide a validation report. Skeleton later launched the product as high-power storage for short-duration applications, not as a retail replacement battery for passenger cars.
What Skeleton and KIT announced
On 8 September 2020, Skeleton Technologies announced a development partnership with KIT to bring the SuperBattery toward market readiness. Skeleton described it as a graphene battery with a 15-second charging time. The announcement records what the company said about a technology under development at that point; it does not establish that a market-ready product already existed.
The wording matters. Skeleton’s announcement does not identify the cell or pack configuration, charger power, starting and ending state of charge, temperature, or test protocol behind the 15-second figure. Without those details, it cannot be treated as a verified charge time for a finished battery system, much less an electric car. Skeleton’s 2020 announcement is the source of the headline claim.
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Skeleton presents SuperBattery as a high-power storage technology between conventional batteries and supercapacitors. In the company’s explanation, supercapacitors store energy in an electric field, while batteries store energy through a chemical reaction. Supercapacitors are suited to brief bursts of high power; batteries are generally more economical when energy must be supplied over longer periods.
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- 100% Reliable Start-up — Never Stranded: The PATENTED ANCEL BS400 super capacitor jump starter delivers instant high-burst power through pure physical charge transfer—free from aging, cold failure, and fire risk. It even starts dead or frozen batteries where others fail. Permanently connected, it guards 24/7, delivering on-demand power while protecting your battery from wear and monitoring its health. All-in-one protection. Never stranded.
- Start Any Vehicle, Any Extreme — Peace of Mind: With 1300A peak power, the ANCEL super capacitor starter starts any 12V vehicle (up to 6.0L gas/diesel or 6.0T) from -40°F to 176°F—including trucks, pickups, off-roaders, SUVs, RVs, even dead batteries. IP65 waterproofing and full circuit protection ensure reliable operation in the engine bay — even in rain, snow, dust, or misconnections. Whether facing a frozen morning or a forgotten charge, you're always ready.
- Protecting Battery Health — Built to Outlast: Every start, your battery takes a hit. Once connected, the BS400 super starter takes the punch—handling up to 100% of brutal starting load while keeping voltage stable, eliminating voltage drops and preventing premature wear. Your battery lasts 300%+ longer. With 500,000+ cycles and a 70-year lifespan, one ANCEL BS400 super starter outlasts multiple batteries — delivering decades of reliable jump-starts that pay for themselves.
- Full Battery Monitoring — Always in Control: Open the ANCEL super starter's app anytime, anywhere to see real-time voltage, battery level, temp & start history. Get alerts before your battery dies. Every start is auto-logged in your vehicle's health archive for easy tracking. Think of this battery capacitor starter as a 24/7 security camera for your electrical system. End the blind guessing of a traditional battery booster. Early warnings prevent being stranded. You‘re always in control.
- Once Installed, Works Automatically — Never Pop the Hood Again: Traditional car jump starters wait for failure. The BS400 doesn't. Once installed, this car battery capacitor starter automatically detects start-stop and handles deep discharges with no need for pre-charging, checks or maintenance. For most starts, it works automatically. If the battery is critically low, tap "Force Start" app from your seat, and it delivers instant peak power to fire up your engine — without stepping outside.
Skeleton’s current product information positions SuperBattery for applications lasting less than 30 minutes, where rapid power delivery matters. This is a complement to longer-duration battery storage, not evidence that the technologies are interchangeable. Skeleton describes uses spanning industrial and grid systems, heavy-duty equipment and transport. Its current product information and FAQ and press materials provide the company’s positioning.
What happened after the 2020 announcement
On 12 October 2022, Skeleton announced the product’s official launch and said it was participating in a Shell-led consortium for mining electrification. The launch release characterized SuperBattery as a high-power product for applications below 30 minutes and said mass production was planned for 2024. That was a forward-looking plan in the 2022 announcement, not confirmation that production started on schedule. The company materials reviewed do not establish whether that milestone was met.
Rank #2
- Model: 16V
- : 15V-16V
- Features: Internal structure ,low internal resistance ,high energy.
- Size: 6.3x3cm/2.48x1.18inch
- Ideal backup power for CMOS, ,VCR ,radio, ,telephone ,smart instrumentation ,driving records ,IC three watches ,electronic watches ,LED flashlights ,LED lighting lighting ,.
The release also claimed 50,000 life cycles and described the product as free from cobalt, copper, nickel and graphite. Those are claims made by Skeleton in its launch announcement, not independently established comparisons of longevity, safety or environmental impact. See Skeleton’s 2022 launch announcement.
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A Skeleton Technologies company presentation labelled 2026 reports several cell-level figures. These figures are from the company, not independent comparative tests, and they do not verify the 15-second system-level claim.
Rank #3
- 𝐑𝐞𝐯𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐚𝐫𝐲 𝐒𝐮𝐩𝐞𝐫 𝐂𝐚𝐩𝐚𝐜𝐢𝐭𝐨𝐫 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲: This Jump Starter is Made of 6*3000F(delivers a maximum current of 6285A) Super Capacitors Instead of Batteries. NOTE: Super Capacitors is an Instant Capacity Based Approach vice a Residual Storage Charge Based Approach, Which means NO NEED PRE-CHARGED at home.
- 𝐈𝐧𝐬𝐭𝐚𝐧𝐭 𝐂𝐡𝐚𝐫𝐠𝐢𝐧𝐠 𝐚𝐧𝐝 𝐔𝐬𝐚𝐠𝐞: Simply attach the jump starter clamps to your car’s 12V weak battery for an instant boost charge. Super capacitors takes just a few minutes to fully charge, making it ready to use immediately without any need for pre-charging at home.
- 𝐉𝐔𝐌𝐏 𝐒𝐓𝐀𝐑𝐓 𝐀𝐋𝐋 𝟏𝟐𝐕 𝐂𝐀𝐑𝐒: Whether it's cars, trucks, tractors, motorcycles, RVs, or any 12V vehicle, our 6000A super capacitor jump starter gets them roaring in minutes.
- 𝐑𝐞𝐥𝐢𝐚𝐛𝐥𝐞 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐚𝐧𝐝 𝐒𝐚𝐟𝐞𝐭𝐲 𝐢𝐧 𝐄𝐱𝐭𝐫𝐞𝐦𝐞 𝐓𝐞𝐦𝐩𝐞𝐫𝐚𝐭𝐮𝐫𝐞𝐬: Performs flawlessly in extreme temperatures (up to 158°F and down to -45°F) without any loss in performance. Unlike traditional batteries, supercapacitors provide absolute safety in hot conditions, you can store it in your vehicle in hot summer.
- 𝐄𝐗𝐓𝐄𝐍𝐃𝐄𝐃 𝐋𝐈𝐅𝐄𝐒𝐏𝐀𝐍: Boasting over 1,000,000 cycles, our cutting-edge supercapacitor tech leaves traditional batteries in the dust.
| Reported figure | Configuration or qualification | What it establishes |
|---|---|---|
| 2,000 A charge/discharge pulse | 23 Ah cell; Skeleton Technologies presentation labelled 2026 | A company-reported cell-level pulse figure, not a vehicle charging time. |
| Greater than 4.8 kW/kg and 10 kW/L | High-power test; Skeleton Technologies presentation labelled 2026 | Company-reported power figures for the stated test context, not an independent comparison. |
| Ten cycles at 50 C charge rates | Skeleton Technologies presentation labelled 2026 | A reported test detail; it does not, by itself, establish a commercial system’s charging time or lifetime. |
The figures appear in Skeleton Technologies’ 2026 company presentation hosted by Energy Saxony. They describe cell-level measurements and a specific high-power test context; they should not be generalized to an entire vehicle battery pack.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Can it replace a lithium-ion battery in an electric car?
The available company materials do not show SuperBattery as a consumer passenger-car replacement battery that drivers can buy and install. Skeleton’s positioning instead emphasizes high-power industrial, grid, heavy-duty and transport uses, often alongside conventional batteries. Its 2020 announcement’s automotive language and 15-second headline are not proof that a production EV can recharge in that time.
Rank #4
- POWER ENHANCEMENT & FUEL SAVING: This capacitor can effectively enhance the power of your car and save fuel at the same time, which will make your driving experience to a higher level.
- Improve the sound quality of your car: Provide stable power for your car audio system, help to improve the sound quality and enjoy a better driving trip.
- Energy saving and environmental protection to reduce emissions: contribute to environmental protection, effectively reduce the energy consumption of the car and exhaust emissions.
- Quick installation for automobile: specially designed for automobile, easy and quick installation, easy to improve your car performance.
- Extend battery life: stable current can effectively extend battery life and reduce the trouble of frequent battery replacement.
For a vehicle, a cell result does not determine pack-level charge time. A real system also depends on pack design, charging equipment, operating conditions and the vehicle’s charging controls. The reviewed sources do not provide an independently validated vehicle-level test of the 15-second claim.
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- Maxwell Durablue super capacitor Module 18V 567F with balance circuit board (3.0V 3400F ×6pcs)
- long life: up to 8 million to 120 million cycles
- High Power density: up 6700W/kg
- Low ESR: can be used as a rechargeable battery and ideal for back up purposes
- Quick charge: charging 10 seconds to 10 minutes to reach its rated capacity of more than 95%
What is established, and what remains unconfirmed
- Established: Skeleton announced a SuperBattery development partnership with KIT in 2020 and described a 15-second charging time.
- Established: Skeleton announced an official product launch in 2022, identified a Shell-led mining electrification consortium and planned mass production for 2024.
- Current company positioning: SuperBattery is presented as high-power storage for short-duration applications, including industrial and grid uses.
- Not established by the sources reviewed: independent validation and exact test conditions for the original 15-second claim; whether the 2024 mass-production plan was achieved; and consumer availability as a passenger-EV replacement battery.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
