APC RBC8 compatible replacement. Sigma SG-RBC8PHR supplies two 24v 9ah battery modules. The package contains 4 internal 12V batteries. Preserve the original UPS wiring configuration.
RBC8 replacement battery specifications
| APC cartridge reference | RBC8 / APCRBC8 |
|---|---|
| Sigma battery model | SG129-36HR |
| Package contents | Two 24V 9Ah battery modules |
| Battery quantity | 4 |
| Voltage per battery | 12V |
| Capacity per battery | 9Ah |
| Chemistry | Rechargeable AGM sealed lead-acid (SLA) |
| Battery terminals | T2/F2, 6.35 mm blade |
| Dimensions per battery (L × W × case H) | 151 × 65 × 94 mm; 100 mm overall height |
| Approximate net battery weight | 10.4 kg total, excluding connecting hardware and packaging |
| Supplier replacement reference | SG-RBC8PHR |
Check your existing battery configuration
Match the complete UPS model and revision, RBC reference, battery voltage, dimensions, terminal type and polarity. Use the supplied photos to check connections and reuse suitable original UPS leads where required. Follow the UPS manufacturer’s replacement instructions. The UPS is not included.
The supplier rates each battery at 9Ah. Runtime depends on load, temperature, battery condition and UPS settings; capacity alone does not promise a fixed runtime increase.
Technical document
Download SG129-36HR specifications (PDF). This document describes each battery, not a complete wired UPS cartridge.
Related APC batteries
Browse APC UPS replacement batteries. Email Sales@RocketDistributing.com with your UPS model, RBC number, battery photos and quantity for matching help or volume pricing.
APC is a trademark of Schneider Electric. This is an aftermarket compatible replacement supplied by Sigma Power Systems.