Tadiran SL-2790T PulsesPlus battery DD with 3.6 V and 32 Ah, with solder tabs

The Tadiran SL-2790T is a revolutionary PulsesPlus hybrid battery in the very large size DD. It was developed for the most demanding long-term applications that require both an extremely high energy reserve and the ability to deliver high current pulses. The system combines a long-life lithium thionyl chloride primary cell with a unique hybrid layer capacitor (HLC). This version is equipped with solder tags (LF-U) pre-assembled for direct mounting on circuit boards and offers the maximum available capacity of this series at 32 Ah.

Highlights at a Glance

• Extremely high capacity: 32 Ah for maximum independent runtimes over many years.
• High pulse current capability: Ideal for applications with high peak current demand (up to 4 A).
• No voltage dip: The integrated HLC prevents the passivation effect under load.
• For PCB mounting: Pre-assembled with solder tags for direct and secure installation.
• Maximum service life: Low self-discharge of the primary cell and gentle operation.

Powerful in a Wide Variety of Applications

The Tadiran SL-2790T is the optimum energy solution for applications that have to operate for years or even decades without maintenance and require periodically high performance for transmission processes. Its main areas of use include long-term asset tracking systems for containers or rail vehicles, self-sufficient measuring buoys, seismic measuring stations, professional security and surveillance technology with high energy needs and demanding military applications in which the energy source is integrated directly on a mainboard.

The PulsesPlus Technology: Maximum Energy and Performance

The heart of the PulsesPlus battery is its hybrid design. The high-energy Li-SOCl₂ primary cell with 32 Ah serves as a long-term energy store and continuously charges the hybrid layer capacitor (HLC) connected in parallel. If the application requires a high current pulse, this is supplied directly from the HLC, not from the primary cell. This clever system protects the primary cell from high loads, prevents the typical voltage drop caused by passivation, and thus ensures stable voltage and maximum service life.

Superior Lithium Hybrid Technology

By combining the best properties of two technologies, the PulsesPlus battery offers unrivalled advantages. It combines the extremely high energy density and low self-discharge of a lithium thionyl chloride cell with the high power density of a capacitor. The result is a power source that remains ready for use for decades and can provide high power immediately as needed, even after long periods of inactivity and at low temperatures.
 

Features

FAQs about this Tadiran PulsesPlus battery

What exactly is PulsesPlus technology?

PulsesPlus is a hybrid system that combines a long-life lithium primary battery with a rechargeable hybrid capacitor (HLC). The battery provides the energy for an extremely long service life, while the capacitor provides the high power for current pulses.

For which applications is a PulsesPlus battery better than a standard lithium battery?

It is ideal for devices that usually require very little power, but periodically require short, high current surges. A typical example is a self-sufficient measuring buoy that transmits its data by satellite once a day. A standard battery would experience a voltage dip with this transmission pulse, but not the PulsesPlus battery.

Does PulsesPlus completely eliminate the passivation effect?

Yes, from the application's point of view, the passivation effect is completely eliminated. Since the high current pulse is provided by the HLC and not by the primary cell, the primary cell never sees the high load. This effectively avoids the voltage dip that occurs with standard cells due to the passivation layer.

What does connection with solder tags mean?

This model is equipped with metal contacts, so-called solder tags, which can be soldered directly onto a printed circuit board (PCB) for a simple and permanently secure connection. This ensures an excellent mechanical and electrical connection.

Is this system rechargeable?

No, this is a primary system. The primary cell cannot be recharged from an external source. The integrated capacitor is recharged exclusively by the primary cell itself.