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VDO buffer battery DTCO (PU:1= 6 pieces)

Product information "VDO buffer battery DTCO (PU:1= 6 pieces)"

VDO Buffer Battery DTCO

Powerful lithium battery for secure DTCO data storage (set of 6):

The VDO Buffer Battery DTCO PU 1 is the reliable power source for digital tachographs of type DTCO®. It ensures that all relevant driving, vehicle, and event data remain securely stored even when the main vehicle battery is disconnected or has failed. In the practical set of 6, it offers workshops, testing centers, and fleet operators the perfect combination of quality, cost-effectiveness, and long-term supply security.

Overview of the VDO Buffer Battery DTCO

Digital tachographs require an internal emergency power supply to protect important data. The VDO Buffer Battery takes on exactly this task.
It ensures that the memory of the DTCO is never unpowered, thus complying with legal requirements for data retention.

Why the buffer battery in the tachograph is indispensable:

  • Prevents data loss

  • Protects against manipulation

  • Ensures operation in accordance with EU regulations

  • Supports smooth operation in road traffic

Thus, the buffer battery is one of the essential components of the digital tachograph.

Technical Data of the VDO Buffer Battery DTCO (set of 6)

Voltage and capacity in detail:

  • Voltage: 3,6 V

  • Capacity: 1,1 Ah (1100 mAh)

  • Type: Lithium buffer battery (Li-SOCL₂ technology)

These values guarantee a long-lasting and stable power supply for the internal memory of the DTCO.

Lithium technology for high stability

The lithium chemistry is particularly durable, temperature-resistant, and vibration-proof – ideal for vehicles of all sizes, from vans to heavy trucks.

Advantages of the VDO Buffer Battery in daily use

Legally compliant storage according to §57b:

The battery enables the standard-compliant function of all DTCO storage systems. This automatically meets the requirements according to:

  • § 57b StVZO

  • relevant EU regulations

Original VDO – Maximum fit accuracy:

As an original spare part, the battery offers:

  • 100 % compatibility

  • optimal lifespan

  • highest safety standards

Efficient stock management for workshops & testing centers:

The set of 6 allows for economical stocking – perfect for businesses that regularly maintain tachographs or service vehicles.

Compatibility & application areas of the buffer battery

Ideal for various users:

  • Truck workshops

  • Tachograph testing centers

  • Automotive businesses

  • Freight forwarders

  • Fleet managers

Since the buffer battery is an indispensable part of maintenance, it is standard equipment everywhere.

Installation instructions and recommended replacement cycles

Installation only by trained personnel:

Since the tachograph is a calibrated device, the battery may only be replaced by qualified technicians.

After replacement, a new sealing may be required.

Replacement during periodic inspection:

The battery should ideally be replaced:

  • as part of regular DTCO maintenance

  • during each HU / tachograph inspection

  • as soon as warning messages appear on the display

This ensures that data security is always guaranteed.

FAQ about the VDO Buffer Battery DTCO

1. What is the VDO Buffer Battery DTCO needed for?
For data protection of the tachograph in case of power failure.

2. Can I replace the battery myself?
No, only trained and certified personnel may perform the replacement.

3. What happens if the buffer battery is empty?
There is a risk of data loss, error messages, and possible violations of legal regulations.

Conclusion – Why the VDO Buffer Battery DTCO is the best choice

The VDO Buffer Battery DTCO - 3,6 V / 1,1 Ah in set of 6 is the reliable, durable, and legally compliant solution for every tachograph maintenance.
Its original VDO quality, high stability, and economical set format make it an indispensable component for workshops, testing centers, and freight forwarders. Those who prioritize safety, compliance, and durability cannot overlook this battery.


Control devices: DTCO all types
Function: Consumable material §57b test, Consumable material §57b test

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