Since APC and the other major brands don’t offer repairs for their systems, many people struggle to find affordable replacements. So we get several requests to sell an empty chassis to people with problems. They want to use their existing batteries with our chassis.
The most frequent chassis request is a for APC SURT to solve the “inverter fault” or red X on the unit. APC often tells people the unit needs to be replaced with these faults. However, some faults are because of a battery charge cycle mismatch. If this is the case, our unit will still have a battery mismatch because the batteries are screwed up. Too many customers have overnighted a chassis at small fortune only to have it still not work.
That’s why we developed the Starter Line of UPS units. Starter UPSes use last years expired batteries to provide a low cost working unit.
Nearly any model can be made Starter, but the most common are the APC SURT 5000 and the APC Smart UPS 3000 XL.