Saft Lithium round cell LS 33600 LF-U

The Saft LS33600 LF-U is a high-performance lithium thionyl chloride battery (Li-SOCl2) in D size, assembled with U-shaped solder tags for flexible and robust installation. This special version is based on the powerful LS33600 cell and offers a nominal voltage of 3.6 V and a very high capacity of 17.0 Ah. Thanks to its extremely low self-discharge, it is the ideal energy source for durable industrial electronics with maximum energy requirements.

Highlights at a glance

• Flexible mounting: U-shaped solder tags (LF-U) for versatile installation positions
• Maximum capacity: 17.0 Ah in D size for extremely long runtimes
• Powerful: High and stable operating voltage of 3.6 V
• Extremely long service life: Very low self-discharge of under 1% per year
• Robust: Hermetically sealed stainless steel housing for maximum operational safety
• Versatile: Usable in a wide temperature range from -60 °C to +85 °C

Powerful for versatile industrial applications

The Saft LS33600 LF-U was designed for use in professional devices where the battery is not soldered directly to a PCB but requires a flexible connection. The U-shaped solder tags enable a secure connection by means of cables or in special battery holders. Typical applications include memory backup systems, maritime buoys, industrial controllers and meters that require a reliable and extremely durable power supply.

Efficiency and guaranteed safety

The proven lithium thionyl chloride technology guarantees reliable energy delivery over many years. The cell is hermetically sealed by means of a glass-to-metal seal to minimise the risk of current leakage and has a non-flammable electrolyte, which significantly increases operational safety. The LS33600 LF-U is compliant with IEC 60086-4 safety standard as well as UL certified.

Robust Li-SOCl2 technology for industry

Lithium thionyl chloride chemistry stands for superior energy density and exceptionally long service life. Compared to other battery technologies, it offers a stable voltage profile until the end of the discharge cycle. The robust construction reliably protects the cell against corrosion as well as mechanical stress, thus ensuring the functionality of your application throughout the entire product life cycle.
 

Features

FAQs about the Saft LS33600 LF-U lithium round cell

What does the designation LF-U mean?

The LF-U designation describes the type of connections on the battery. "LF" stands for solder tag and the "U" specifies their shape as U-shaped solder tags. These enable the soldering of cables or the use in certain holders, offering high flexibility during installation.

Is the Saft LS33600 LF-U rechargeable?

No, the LS33600 LF-U is a lithium primary battery and must not be recharged under any circumstances. Any attempt to charge is dangerous, damages the cell and can lead to leakage or explosion.

What is the difference to the versions with pins (e.g. 2PF)?

While versions with pins (PF) are intended for direct mounting into designated holes on a circuit board, the U-shaped solder tags (LF-U) offer greater flexibility. Cables of various lengths can be soldered to these, allowing the battery to be positioned freely in the device housing.

For which applications is this version with solder tags suitable?

This version is ideal for applications where the battery is not mounted directly on a PCB. It is often used to replace older batteries with soldered cables in industrial controllers or in devices requiring a flexible, wired connection to the power source with maximum capacity.

How should the LS33600 LF-U be properly disposed of?

As a lithium battery it is subject to special disposal regulations. It must be taken to appropriate municipal collection points or specialist retailers. Disposal in domestic waste is not permitted.