Tadiran SL-750T Lithium battery 1/2 AA with 3.6 V and 1.0 Ah, with solder tabs

The Tadiran SL-750T is a primary high-performance lithium thionyl chloride battery in the extremely compact size 1/2 AA. As part of the proven SL-700 series, it is optimised for maximum reliability and an extremely long operating life with minimal self-discharge. This version is pre-assembled with solder tabs (LF-U) for direct and secure mounting on PCBs, making it ideal for miniaturised “Fit and Forget” applications.

Highlights at a glance

• Maximum lifespan: Extremely low self-discharge of less than 1% per year.
• For PCB mounting: Pre-assembled with solder tabs for direct installation.
• Extremely compact design: 1/2 AA size for maximum miniaturisation of your application.
• High nominal voltage: Stable voltage of 3.6 V for almost the entire service life.
• Wide temperature range: Reliable operation from -55 °C to +85 °C.

Powerful in a wide range of applications

The Tadiran SL-750T was specifically developed for long-term applications with low continuous current where the battery is permanently integrated into the electronics and installation space is limited. Its primary applications include memory backups (RTC, CMOS) in compact industrial controllers, miniaturised metering technology and wireless security sensors. It is the perfect choice for all devices that need to operate independently for over a decade without battery replacement.

Engineered for maximum safety and efficiency

The safety and longevity of the SL-750T are based on Tadiran’s proven design. The cell features a hermetic glass-to-metal seal that reliably prevents the electrolyte from leaking. The inorganic electrolyte used is non-flammable and provides a high degree of intrinsic safety. Each cell is designed to deliver its energy constantly and safely over a very long period, minimising maintenance costs and reducing your application’s total operating costs.

Superior lithium thionyl chloride technology

The lithium thionyl chloride technology (Li-SOCl₂) of the SL-700 series is the gold standard for long-term applications with low current requirement. A characteristic feature is the passivation effect: a thin protective layer forms on the lithium anode, which reduces self-discharge to an absolute minimum and thus enables extremely long storage and operating capability. This ensures that the energy remains reliably available even after many years.

Features

FAQs about this Tadiran battery

What does connection with solder tabs mean?

This model is equipped with metal contacts, known as solder tabs, which can be soldered directly onto a printed circuit board (PCB) for a simple and permanently secure mounting. This ensures excellent mechanical and electrical connectivity without the need for a battery holder.

What is the advantage of the SL-700 series compared to other series?

The SL-700 series is optimised for the lowest possible self-discharge. It is the best choice for applications that require very little power for many years, such as data retention (memory backup). In contrast, other series (such as the SL-300 iXtra) are designed for applications with higher pulse current demand.

For which devices is this battery type suitable?

This type of battery is ideal for miniaturised professional electronics in which the battery is permanently soldered and an extremely long service life is essential. Typical applications are compact meters, miniature industrial controllers and security sensors.

Is this battery rechargeable?

No, this is a primary lithium battery and must not be recharged under any circumstances. Attempting to charge the cell is dangerous and may lead to overheating, leakage, or bursting of the cell.

What does the passivation effect mean for this battery?

After longer storage, a protective layer forms on the lithium surface. This layer is responsible for the extremely low self-discharge. When first used, it can cause a brief voltage delay. This should be considered in circuit design for applications that require current immediately after activation.