Alpride e2

The Alpride E2 system is an electronic system. It works with a powerful blower that can inflate the airbags in a short time. Pulling the release handle turns on a centrifugal compressor that inflates the airbag. It is powered by a supercapacitor. Supercapacitors store electrical energy without a chemical reaction (unlike lithium-ion or lithium-polymer batteries) and are therefore not temperature sensitive, meaning they deliver equal power from -30°C to +50°C. The system can be charged directly from the socket via a USB-C port. In combination with two standard AA batteries, the system has a runtime of up to three months. The system performs a self-test every time it is switched on. An LCD display provides information about the charge level and other information. A protective cover around the system prevents other objects from interfering with the system in any way.

  • Fly without restrictions - The supercapacitors are passive electronic elements and are not subject to any transport, shipping or storage restrictions.
  • Multiple activations - You can practice inflating the airbag easily and without changing the cartridges.


The ABS EasyTech system triggers mechanically. This means that the cartridge, like the SOLID system, has a
The needle is pierced, but the needle is not moved by gas pressure, but mechanically by a pre-tensioned spring. The spring is here over a
Bowden cable triggered by pulling on the handle and the cartridge was thereby punctured.
The further course corresponds to that of the SOLID system: Due to the high pressure of
At 300 bar in the cartridge, the gas flows extremely quickly via hoses into the charging housings of the 2 airbags. This is where the crucial thing happens: ambient air is sucked in via a nozzle effect, with the help of which the airbags inflate within 3-4 seconds.

  • Extremely reliable and fast filling - the inert gas in the cartridges is neither flammable nor toxic and fills the twin bags in 3-4 seconds, regardless of temperature or external pressure.
  • Test releases – you can practice the release multiple times without using up a cartridge. The system gives you haptic and visual feedback as to whether it has actually been triggered.
  • The system can be activated without tools. You don't need any tools or wrenches to tension the spring.


The ABS Solid System triggers pyrotechnics. When the handle is pulled, a blasting cartridge releases a pressure wave that is directed into the piercing unit via a hose. The pressure causes a needle to be shot into the cartridge via a piston, which releases the inert gas (inert means inert, the gas is non-toxic and non-flammable). Due to the high pressure of 300 bar in the cartridge, the gas flows extremely quickly via hoses into the charging housings of the 2 airbags. This is where the crucial thing happens: ambient air is sucked in via a nozzle effect
which help the airbags inflate within 3-4 seconds.

  • Temperature independent - sealed system protects against external influences.
  • Extremely reliable and fast filling - the inert gas from the cartridges fills the twin bags in 3-4 seconds, regardless of temperature or external pressure.
  • Removable handle - this means it is compatible on the right and left, and the system can also be transported this way.
  • Low maintenance - the refillable cartridge can be refilled during service and is ready for use again with a new (refilled) handle.

How does an airbag generally work?

An avalanche is not a liquid mass, not a waterfall. The avalanche snow consists of snow crystals of various shapes. If these granules start to flow during an avalanche, the granulate parts rotate. The small parts crawl under the larger volume parts and push them up. There, this “segregation dynamic” subsides and the larger-volume, heavy parts sink back down. However, once a snow slab has formed, it remains on the surface despite the greater weight due to the large contact surface. If a skier/snowboarder gets caught in an avalanche, the same thing happens. It is pushed upwards by the segregation effect. There the buoyancy dynamic breaks down and it immediately sinks back into the snow masses. It lacks the necessary support surface that balances its volume density with the density of the avalanche snow. However, if the skier/snowboarder deploys his avalanche airbag in time, he can counteract the burial.

A basic distinction is made between ABS TWINBAGS and so-called mono airbags. ABS uses both systems in different backpack models.



In order to remain on the surface during the segregation process, all that counts is the additional contact surface created to compensate for the significantly higher mass density of humans compared to the significantly lower mass density of the avalanche snow. The ABS® Twin Airbags have the largest surface area on the market at 7240 cm2, which is crucial to avoid being buried in an avalanche.


Number of airbags

With the TwinBag system, ABS is the only manufacturer to ensure double safety with two completely independent airbags. Both airbags are filled independently with separate valves and hold air independently of each other. Avalanches don't just happen over gentle meadow slopes, on the contrary - obstacles such as stones, rocks, pines or broken trees can be in the path of the fall.


Tested for over 25 years

ABS brought the patented TwinBag system onto the market in 1996 and therefore has unrivaled practical experience of over 25 years.



Light weight

One less airbag not only means less airbag area, but also a simpler design of the trigger unit, for example by saving hoses. These two features ultimately contribute to a lower overall weight.


Simple construction

One airbag instead of two also means that the backpack only needs one place where the airbag deploys in an emergency. This has the advantage that large areas of the backpack can be used for storage space, thus simplifying the construction of the backpack.


Compatible with electrical release systems

Since only one airbag needs to be filled, the overall volume is reduced, meaning less energy is required. This advantage allows the airbag to be inflated by electrical systems, such as the Alpride E2 system used by ABS.