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Electrification FAQs
Electrification FAQs

Find the answers to many of your questions about your electric transport refrigeration units (electric TRUs or eTRUs).

Updated over a week ago

Usage & Performance

Can electric transport refrigeration units (electric TRUs or eTRUs) maintain a charge to last my route?

Absolutely! Carrier eCool assets are eTRUs that offer the capability of charging the battery from the e-axle when the vehicle is moving, ensuring that the asset has enough charge to last until the trip is completed and the driver is safely back at the warehouse.


How long will my battery last?

Battery packs are designed to last for an average of 10 years with a residual capacity of 70%, assuming standard usage recommendations are followed.


On average, how many hours can my eTRU last on a single charge?

It depends on the TRU application and battery capacity. On average, a charge can last from 90 minutes to 8 hours with current battery capacity.


On average, how many hours can my eTRU last during its lifetime?

It will vary depending on the application.


What factors impact battery performance?

Several factors can impact battery performance. Take precautionary measures to improve battery performance and longevity.

  • Rebalancing: Battery packs are designed to work at optimal performance when all cells have equal capacity. As the battery is used for power, the battery cells become unbalanced. Rebalancing the battery cells to equal capacity is crucial to the health and life of the battery.

  • Temperature: Ambient temperature can have a great impact on battery capacity. Generally, temperatures below 0°C or above 55°C can impact the battery’s capacity or cause the battery to shut down. Exposing the battery to extreme temperatures for long periods of time may permanently damage the battery.

  • Depth of Discharge (DOD) effect: The more deeply a battery is discharged during cycles, the shorter the battery life will become.


How does battery chemistry impact the life and performance of my battery?

All battery chemistries have unique characteristics such as power, life cycle, safety, and temperature range. Battery performance is mostly impacted by battery care and maintenance, including regularly rebalancing the battery, reducing exposure to extreme temperatures, and avoiding frequent deep discharges. Learn more: "What factors impact battery performance?"


When does an asset become inactive or offline?

The battery displays “inactive” when it is neither giving nor receiving power. The battery displays “offline” when it is not reporting any data.


Charging

How long do my batteries need to charge?

The batteries require an average of 2-3 hours of being connected to the grid to fully charge (depending on model and capacity). To rebalance the battery, the battery must be continuously plugged into the grid for 5 to 6 hours.


Can I plug my battery into any outlet?

The battery connects directly to any outlet that can support 400 volts – 32 Amps.


Is there an option for fast-charging?

The battery does not have a DC fast-charging option at this time, which could impact battery lifespan. Our current design has the plug-in capability that can charge to 80% in approximately 70 minutes.


What is axle charging?

Carrier eCool assets are equipped with an e-axle that uses the energy from the vehicle while driving to charge the battery.


Health & Maintenance

What is rebalancing, and why do I need to do it?

Battery packs are designed to work at optimal performance when all cells have equal capacity. As the battery is used for power, battery cells become unbalanced. Rebalancing the battery cells to equal capacity is crucial to the health and life of the battery. To rebalance the battery, it must be continuously plugged into the grid for 5 to 6 hours. Batteries should be rebalanced at least once every 7 days.


When does rebalancing become overdue?

Rebalancing is critical to the battery's health and life. Rebalancing becomes overdue if the battery has not been continuously plugged in to the grid for 5-6 hours at least once every 7 days.


What is deep discharge?

Deep discharge occurs when the battery is drained to critically low levels, typically less than 20% of full charge (real capacity). Consistently discharging the battery to these low levels can damage the cells and reduce its health and life.


Why should I care if batteries have very high or very low temperatures?

A battery produces energy thanks to a chemical reaction. As with all chemistry, temperature is a key factor. Ambient temperature can have great impact on battery capacity. Generally, temperatures below 0°C or above 55°C can impact the battery’s capacity or cause it to shut down. Exposing the battery to extreme temperatures for long periods of time may permanently damage it.


Specifications & Infrastructure

What is the Power Rating of my battery?

Battery packs are designed for a continuous power of 19kW.


What is Power Mode?

Power mode refers to the current power source for the refrigeration of the eTRU. Electric TRUs may be powered either by the battery or by the grid when plugged in.


What electric charging infrastructure specifications are needed?

The battery connects directly to any outlet that can support 400 volts – 32 amps.


Have More Questions?

Read the article Understanding Electrification or contact Carrier at lynx-support@carrier.com for more information about Electrification or LYNX Fleet.

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