Your SMX unit is still running, but the battery's been doing the heavy lifting for years. Runtime's down. The self-test is telling you to swap it. This 120V cartridge is the one your UPS was engineered around — ten sealed lead-acid blocks in a single enclosed unit. Drop it in, connect, and your server room's back to full protection. No fiddling with individual cells, no voltage mismatches. Arrives fully assembled with every connector, an installation guide, and a recycling sheet. Three to five years of reliable backup ahead of you. 2-year warranty included. Fits SMX2200R2HVNC, SMX2200RMHV2U, SMX3000RMHV2U, and SMX3000RMHV2UNC. Add to cart before the next outage tests a dying battery
