Sigma Batteries

Sigma SLA, emergency-lighting and UPS replacement batteries

Find Sigma Power Systems batteries for equipment maintenance and backup power. Browse individual 6V and 12V sealed lead-acid batteries, emergency-lighting replacements, and UPS battery sets or cartridges. Search by the battery model, equipment model or APC RBC reference to narrow the current catalog.

Match the battery, not just the voltage

Compare the original battery label and equipment instructions with the product specifications. Check chemistry, voltage, capacity, case dimensions, terminal width and polarity. T1/F1 and T2/F2 blade terminals differ in width; nut-and-bolt and wire connections require their own matching hardware. A similar model name or capacity does not establish fit.

APC UPS batteries and RBC references

For an APC replacement, match both the complete UPS model and its RBC cartridge reference. Product pages distinguish individual batteries, loose battery sets and assembled cartridges. A multipack quantity is the number sold together; it does not establish your UPS wiring or the number your equipment requires. Read the package contents to determine whether leads, trays or other hardware must be reused.

Choose the right application

The 6V SLA and 12V SLA categories contain base batteries. Use Emergency Lighting for fixture cross-references, or APC UPS Batteries for APC model and RBC replacements.

Specifications and volume orders

Open the product page for dimensions, package details and available manufacturer specification sheets or safety documents. Follow the equipment manufacturer’s replacement and charging instructions. For help matching a battery or requesting volume pricing, contact Rocket Distributing with the equipment model, battery reference and required quantity.

Equipment-brand names identify the intended compatible application. Aftermarket compatible replacements are not original equipment manufacturer batteries unless the individual product page expressly states otherwise.