Saft Lithium round cell LSH20 LF-U with 3.6 V and 13.0 Ah

The Saft LSH20 LF-U is a high-performance lithium thionyl chloride battery (Li-SOCl2) in size D, which is assembled with U-shaped solder connections for flexible and robust installation. It combines the spiral-shaped high-performance technology of the LSH series with versatile connection options. With a rated voltage of 3.6 V and a very high capacity of 13.0 Ah, it is the ideal choice for demanding devices that require extremely high energy output and flexible installation.

Highlights at a glance

• Flexible mounting: U-shaped solder terminals (LF-U) for versatile installation positions
• Maximum power: Developed for the highest continuous currents up to 1800 mA
• Extremely high capacity: 13.0 Ah in the D size for maximum runtime under load
• Highest pulse capacity: Reliable output of pulses up to 4000 mA (4 A)
• Spiral technology: Optimised for fast energy output with minimal voltage drop
• Robust: Hermetically sealed stainless steel housing for maximum operational safety

Maximum power for critical applications

The Saft LSH20 LF-U was designed for use in professional devices that require maximum power and a wired connection. The U-shaped solder connections enable a secure connection using cables. Typical applications include emergency transmitters (ELT, EPIRB), military equipment, professional power tools and industrial applications where the power source cannot be placed directly on the circuit board.

Superior spiral technology for maximum currents

In contrast to batteries with a wound design (bobbin type), the spiral design of the LSH20 maximises the active electrode surface. This enables a significantly faster chemical reaction and therefore the delivery of extremely high currents with stable voltage behaviour. This ensures reliable and constant performance of your application even under the highest load.

Efficiency and guaranteed safety

The cell is hermetically sealed with a glass-to-metal seal to minimise the risk of current leakage and has a non-flammable electrolyte, which significantly increases operational safety. The LSH20 LF-U conforms to the IEC 60086-4 safety standard and is UL certified, making it suitable for safety-critical applications with the highest power requirements.


Characteristics

FAQs on the Saft LSH20 LF-U lithium round cell

What does the designation LF-U mean?

The LF-U labelling describes the type of connections on the battery. "LF" stands for solder connection and the "U" specifies their shape as U-shaped solder lugs. These allow cables to be soldered on or used in certain holders, which offers a high degree of flexibility during installation.

What is the main difference to the Saft LS33600?

Although both batteries are size D, they are optimised for opposing purposes. The LSH20 LF-U is designed for maximum power and extremely high current output. The LS33600 is optimised for an extremely long service life with very low power consumption and offers a higher capacity.

For which applications is this version with solder terminals suitable?

This version is ideal for high-performance applications where the battery does not sit directly on a circuit board. It is often used to replace older batteries with soldered cables or in devices that require a flexible, wired connection to the power source.

Does the LSH20 have a higher self-discharge rate than an LS battery?

Yes, due to the spiral design with a larger electrode surface, the self-discharge of the LSH series tends to be slightly higher than that of the LS series. Nevertheless, it offers excellent shelf life and durability for a high-performance battery.

Is the LSH20 LF-U rechargeable?

No, the LSH20 LF-U is a lithium primary battery and must not be recharged under any circumstances. Any attempt to charge it is dangerous and can lead to the destruction of the cell or to a deflagration.