Need reliable backup power for your industrial equipment?

This 5-pack of TL-5903 / SL-360 lithium batteries is exactly that.

They’re 3.6V, 2400mAh, non-rechargeable lithium cells sized at 14.5mm x 50.5mm (like a fat AA).

They’re direct replacements for batteries used in Siemens S7-400 PLCs, Tadiran devices, FANUC CNC systems, servo motors, real-time clocks, and alarm systems.

These batteries are built for tough conditions – they work in a wide temperature range from -40°C to +85°C, have stable discharge, and won’t leak.

Important: These are NOT rechargeable.

Do NOT try to charge them, short-circuit them, or throw them in fire – just use them as intended for backup memory power.

Having a few spares on hand means no downtime when your equipment’s backup battery dies.

A practical, essential pack for maintenance pros and technicians.