Product Description
2500W Car Audio System Battery
The VMAX CT1250 AGM car audio battery is built for serious audio systems that require high reserve power, fast energy delivery, and long-lasting performance. Designed specifically for high-powered amplifiers and aftermarket sound systems up to 2500 peak watts or 1250 watts RMS, this Group 21R AGM battery provides the clean, stable power needed to keep your system performing at its best. Using advanced Absorbed Glass Mat (AGM) technology, the CT1250 is completely maintenance-free, spill-proof, and vibration resistant. Whether you're powering competition-level car audio equipment, custom installs, or mobile electronics, this deep cycle AGM battery delivers strong reserve capacity, rapid recharge acceptance, and the durability needed for use in automotive environments.
Features & Benefits
- 2500 Watt Max – Designed to support car audio systems up to 2500 watts with high power delivery.
- High Vibration Resistance – Commercial-grade AGM construction to handle heavy audio system vibrations.
- AGM Deep Cycle – Provides stronger cycling performance than standard batteries for repeated discharges.
- Maintenance-Free Design – Sealed non-spillable construction eliminates leaks, and routine maintenance.
- Fast Recharge – Recovers quickly after heavy power draw to maintain consistent system performance.
- Group 21R – Compact size allows flexible installation for custom audio builds in tight compartments.
Why Choose VMAX for AGM Car Audio Batteries
VMAX has earned a strong reputation for building premium AGM batteries designed for applications where performance cannot be compromised. Their deep cycle battery technology is trusted across automotive, marine, solar, and backup power systems because it delivers reliable reserve power and long-term durability where standard batteries often fall short.
The CT Series audio system batteries continue that reputation by offering a purpose-built solution for car audio enthusiasts who need more than a standard starting battery. With strong cycling capability, dependable voltage stability, and maintenance-free convenience, the VMAX CT Series helps ensure peak performance of amplifiers and premium sound equipment.
| Voltage | 12 Volts |
| Capacity | 50Ah |
| Peak Amps | 1300A |
| System Watts (RMS) | 1250W |
| System Watts (Peak) | 2500W |
| Group Size | 21R |
| Terminals | M6 Inserts |
| Polarity | - Left / + Right |
| Length | 7.82" (199 mm) |
| Width | 6.60" (168 mm) |
| Height | 6.70" (170 mm) |
| Weight | 32 lbs (14.5 kg) |
| Charging Voltage | 14.4V - 14.9V |
| Charging Current | 5 - 15 Amps |
| Float Voltage | 13.5V - 13.8V |
| Discharge Temp | -4°F - 140°F |
| Charging Temp | 14°F - 140°F |
| Storage Temp | -4°F - 140°F |
VMAX CT1250 Battery Cross-Reference
Group 21R Batteries: CT1250, SLR50, MB86-50, MR86-50.
Important: Always confirm your battery's dimensions, terminal configuration, and specifications before purchase to ensure proper fit and performance.
