Xeno Energy XL-050H 3.6V 1/2 AA 850mAh Lithium Battery 8-Pack

1/2 AA Lithium 850mAh 8-Pack

This 8-pack of Xeno Energy XL-050H cells delivers 3.6 volts and 850mAh capacity in the 1/2 AA form factor. The lithium chemistry provides a shelf life exceeding 10 years with less than 1% annual self-discharge at 20°C. They suit meters, sensors, memory backup and other low-drain devices that require long-term, maintenance-free power. The button-top termination ensures a secure contact in standard holders.

Replaces Tadiran Saft Sonnenschein

These batteries are direct replacements for Tadiran TL-4902, TL-2150, TL-5101, TL-5111, TL-5151, TL-5902, Saft LS-14250 and LS-14250c, Sonnenschein SL-350/S, SL-750/S, SL-150/S and Toshiba ER3v cells. The jump is worth it when existing primaries have dropped below usable voltage or when a project demands the wide -55°C to +130°C operating range. They are not for designs needing rechargeable chemistry or continuous currents above 10 mA.

Simple Drop-In Install

Installation is a straightforward swap: remove the depleted cell and insert the new button-top battery observing the marked polarity. The 14.5 mm diameter and 25.2 mm height match the 1/2 AA standard, so no adapter or soldering is required. What usually goes wrong is reversing the polarity, attempting to recharge the non-rechargeable lithium chemistry, or specifying the cell for loads that exceed the 10 mA continuous rating.