Charging in minutes, not hours.
Ultra-fast charge of off-the-shelf lithium-ion batteries without compromising cycle life.

Why can't we ultra-fast charge today?

The problem is straightforward: The faster a battery is charged, the faster it degrades.
Conventional Charging (CCCV)

Some batteries can be charged fast, but the faster a battery is charged, the faster it degrades. To avoid irreversible damage, manufacturers often limit the charging rate of batteries.

GBatteries Charging

Nearly all off-the-shelf lithium-ion batteries that are charged with GBatteries’ adaptive pulse charging algorithm — as an alternative to CCCV — can be charged faster and without compromising cycle life.

Fast charge, long cycle life on off-the-shelf batteries

At GBatteries, we’re not developing new materials or changing battery chemistry. There are two parts to our technology: software and hardware.
1
An AI-based, pulse charging algorithm designed to generate unique charge pulse profiles; and
2
Novel hardware that delivers precisely-engineered pulses at high frequency.
1

Intelligent, adaptive charging

ChargeSense is a proprietary, fully adaptive, self-learning algorithm that generates complex charging pulse profiles based on real-time monitoring and analysis of a battery's internal state. Unique charge profiles are generated based on battery response signatures in real-time, which result in a drastic reduction of irreversible chemical reactions.

2

Novel, unique hardware

GBatteries’ hardware consists of off-the-shelf components, but utilizes proprietary novel architecture that generates precisely engineered pulses at high frequency. All of the hardware is designed, developed, and built internally.

+

Our charging protocol

With every pulse, ChargeSense detects and charges the battery during the low impedance phase, until a critical point in R(t) is reached — Pausing for a crucial period of time to allow a small amount of depolarization and impedance to drop, to prevent irreversible chemistry from occurring.

Impedance R([t] (mΩ)
Current (A)
Time (ms)
Time (ms)
Impedance R([t] (mΩ)
Charging

Paradigm shift in battery charging

Fundamental physics

Impedance is a dynamic parameter of a battery that changes rapidly with time during charge. Impedance is also affected by battery state of health, charge and even ambient temperature.

Less heat

Faster charge often results in a rise in battery temperature, demonstrating possible irreversible internal damage and a potential safety risk. As GBatteries' charging protocol adapts to operate in lower impedance periods, the result is a lower temperature rise during ultra-fast charging.

Data source: GBatteries Test Facility

Battery Temperature during fast charge
Battery Temperature during fast charge
Time (min)
Temperature (°C)
Data

The data

GBatteries is the first to achieve a new, more efficient energy transfer regime.

battery cycle life
Battery cycle life
Retentive capacity (%)
Cycles
battery cycle life
Battery cycle life
Retentive capacity (%)
Cycles
battery cycle life
Battery cycle life
Retentive capacity (%)
Cycles
battery cycle life
Battery cycle life
Retentive capacity (%)
Cycles

Uncompromised cycle life

GBatteries tested hundreds of battery cells for thousands of hours and displayed improved performance over conventional fast charging methods. Over the last 5 years, we have demonstrated repeatable results on power and energy cells ranging from 100mAh to 60Ah.

Type: Power cell
Size: 18650
Manufacturer: LG Chem
Chemistry: NMC

Capacity: 2000mAh
Nominal voltage: 3.7V
Volumetric density: 427 Wh/L
Gravimetric density: 160 Wh/kg

Fast Charge time: 11-13 min to 100%

Data source: GBatteries Test Facility. Cell data from demonstration video above.

Many applications, same technology

Our technology is applicable to any product that has a rechargeable lithium-ion battery and that would benefit from fast charge without reducing battery cycle life — from smart watches to electric vehicles.
wearableswireless headphonessmartphone
Single cell
electric scooterdronespower tools
Low voltage battery pack
electric aircraftelectric bikeelectric vehicle
High voltage battery pack
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Broad and growing patent portfolio

Our patent portfolio grew to over 45 filed applications to date, with 10 granted patents and 28 pending, covering adaptive control methodologies, hardware systems, and implementation designs.