Description
Overview
Delkor Commercial 31-900T is a heavy-duty Group 31 starting battery designed for trucks, buses and marine service where dependable cranking power matters. The Delkor Commercial 31-900T uses rugged flooded lead-acid construction with stud terminals, so it performs reliably in tough, high-vibration environments. Part Number (ID) 31900T is included for accurate inventory tracking.
Features
- High output: 12V with 900CCA for confident cold starts
- Maintenance free design with built-in spark arrestor and hydrometer
- Enhanced vibration resistance through a reinforced polypropylene case
- Threaded stud terminals ensure secure, high-current connections
Specifications and Materials
| Model | 31-900T |
| Voltage | 12V |
| CCA | 900 |
| Capacity (20hr) | 100Ah |
| Reserve Capacity | 160 minutes |
| Group Size | GP31 |
| Post Type | Stud |
| Polarity | Centre |
| Dimensions (L×W×H) | 330×172×240mm |
The estimated battery mass is approximately 25.5kg, based on typical Group 31 flooded lead-acid batteries with 100Ah capacity. You can view full technical data on the official Delkor Batteries page.
Compatibility and Fitment
The Delkor Commercial 31-900T fits Group 31 trays and clamps, and it suits a wide range of commercial and marine starting systems. Because it uses stud terminals, check cable lugs and clearance carefully before installation. With the correct tray and terminal orientation, fitment is usually straightforward.
Compliance and Safety
Follow Delkor’s installation instructions and isolate power before working on cables. Wear eye protection and secure the battery firmly to avoid movement. Additionally, dispose of old lead-acid batteries through authorised recycling programs to meet environmental regulations.
Marine Applications
This model works well for main engine starting on commercial vessels, workboats and larger recreational craft. Its high cranking current and strong vibration resistance make it ideal for demanding marine conditions. However, for house banks or deep cycling, choose a dedicated deep-cycle battery to maximise service life.
Why Choose Argomarine
Argomarine verifies specifications against manufacturer sources and stores the Delkor Commercial 31-900T under appropriate conditions. As a result, you receive a battery that arrives ready to install and backed by expert fitment support. Discover more options in our engine and service parts category for marine starting batteries and accessories.
