eBTM - electrical Battery
Thermal Management

Universal solution for electric battery thermo management with eBTM

Designed for vehicle manufacturers, the eBTM from Webasto ensures optimal battery performance of electric vehicles while prolonging their service life. The electrical Battery Thermal Management actively maintains the optimal temperature, balances between cooling and heating circuits and improves overall vehicle efficiency.

Benefits of eBTM

The eBTM from Webasto significantly enhances the performance of your vehicle. It extends the driving range, accelerates the charging process, optimizes recuperation in cold conditions and promotes battery longevity.

Extended driving range

Experience up to 8.9 % more driving range with high-frequency start/stop driving profile.

Boosted charging energy

With active thermo management, eBTM enhances charging energy by 41 % within an hour.

Faster charging

Pre-conditioned battery packs with eBTM charge up to twice as fast and increases charging power by 24 %.

Higher recuperation

In low temperatures, eBTM increases recuperation and charging power by 24 %.

Improved battery health

Maintain a healthy vehicle with eBTM, boosting battery state of health by 21 % in hot climate conditions.

Optimal temperature control

With up to 10 kW heating and 8 kW cooling, eBTM maintains the optimal temperature range for battery performance.

Technology highlights

Efficient battery conditioning

The Webasto eBTM is a stand-alone battery thermo management unit. It ensures optimal functioning of water-cooled battery packs in electrical commercial vehicles and guarantees long-term ideal battery cell performance.

Illustration of eBTM battery Battery illustration

Water-cooled battery solution

With powerful coolant pumps in the eBTM, optimal functioning of water-cooled battery packs is ensured. A 50/50 water/glycol mixture flows through integrated cooling plates, maintaining the battery's ideal operational temperature.

Illustration of wheel loader with electric lines Wheel loader illustration

Compact and robust design

Components for coolant and heating circuits, electrical water pumps and control units are all housed within the compact design of the eBTM.


Product picture of eBTM eBTM design

Scalable system solution for various vehicle types

eBTM is a perfectly scalable solution: Starting with just one unit, every type of electrical vehicle can be equipped with one or several battery cooling units.


Illustration of eBTM installed in a bus eBTM bus application

Variety of installation positions

A compact design and several fixture points ensure flexible installation, for example  on bus roofs or under the chassis of trucks or light commercial vehicles.


Illustration of eBTM installed in a truck eBTM Truck application

Product details

Product specifications

Designed for larger vehicles, eBTM offers 8 kW cooling and up to 10 kW heating. It handles a high battery capacity of 210 kWh and comes in 400 V and 800 V versions, using R-1234yf refrigerant.

The perfect fit for your vehicles

The eBTM is suitable for a wide range of electric and hybrid vehicles. It optimizes battery performance, increases energy efficiency and extends the battery’s lifespan.

Delivery scope

For manufacturers, each eBTM package comes with all the necessary components for installation. The system is ready for a plug-and-play installation, making it easy for you to get your vehicle on the road quickly.


eBTM - Brochure

Download the eBTM brochure to get more insights

2 MB

eBTM - Data sheet

More details can be taken from the eBTM data sheet

152 KB

Find your dealer

Find your nearest Webasto dealer quickly and easily or arrange your consultation appointment directly.

Find your Heating Solutions Dealer

Contact us

If you have questions or want to know more about the eBTM from Webasto, please fill in the contact form below. We will get back to you as soon as possible.

More Solutions

  • High Voltage Heater

    The electric High Voltage Heater (HVH) is the ideal heating system for battery electric vehicles (BEV) and plug-in hybrids (PHEV). It converts DC electric power into heat with practically no losses.
  • Water heaters

    Water heaters from Webasto warm almost all vehicle and boat interiors. The heating systems are compact, powerful and easy to install.
    Man driving in a truck with water heater
  • Air heaters

    Explore the range of air heaters from Webasto, offering quick, efficient heating for various vehicles with low fuel consumption.
    Man with dog in an RV with air heater
  • Integrated heat exchangers

    Explore the range of integrated heat exchangers designed by Webasto for efficient heating in commercial vehicles, minibuses, off-highway, LCVs, special vehicles and boats using the engine residual heat.
    Excavator and wheel loader on construction site
  • Hybrid heaters

    Explore the range of hybrid heaters for simultaneous heating and hot water in RVs. Underfloor and onboard models available for all RV sizes.
    Man in front of camper can in the mountains
  • Marine heaters

    Explore the whole range of Webasto marine heaters, designed for efficient heating various boat types. Silent operation, compact design and easy to install.
  • Heating solutions for camping vehicles

    The heating solutions for recreational vehicles, caravans and camper vans use diesel (or electricity) as an energy source which makes traveling less dependent on gas.
  • Control devices

    Discover enhanced comfort with the advanced heating controls from Webasto, offering superior convenience and user-friendly design.
    Person holding a phone with Webasto ThermoConnect
  • Product finder