Limitless Lithium Retro Pro 56 12V LiFePO4 Car Audio Battery 56Ah Group 24
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- Capacity — 56Ah LiFePO4 (200–240 Pb equivalent)
- Voltage — 12V, 13.1–13.4V resting
- Output — 750A continuous / 1,200–1,300A burst, 9,000–13,000W range
- Case — BCI Group 24, Positive Left, M8×125 terminals
- Cycle Life — 2,000 cycles @ 80% DOD
This Listing Includes: (1) Limitless Lithium Retro Pro 56 12V LiFePO4 Car Audio Battery 56Ah Group 24
The Limitless Lithium Retro Pro 56 is a high-output 56Ah 12V LiFePO4 battery for big car audio builds, delivering 750A continuous, 1,200–1,300A burst, and up to 16,000W in a Group 24 case. The internal balance board supports a 2,000-cycle service life. In stock and shipping free from JS Ultimate Sounds — your authorized Limitless Lithium dealer.
Features
- Internal balance board for cell longevity
- 16,000W burst capability
- Wide -22°F to 140°F operating range
- Max charge voltage 14.8V (400A max input)
- Drop-in Group 24 replacement
Specifications
| Model | Retro Pro 56 |
| Voltage | 12V |
| Resting Voltage Range | 13.1V–13.4V |
| Capacity | 56Ah (200–240 Pb Eq) |
| Chemistry | LiFePO4 |
| Operating Temperature Range | -30°C to 60°C / -22°F to 140°F |
| Weight | 21 lbs |
| Dimensions | 8.75" H × 6.5" D × 10.125" W |
| BCI Group Case | Group 24 |
| Terminal Size | M8 × 125 |
| Terminal Orientation | Positive Left |
| Life Cycles | 2,000 @ 80% DOD |
| Battery Management System (BMS) | No |
| Balance Board | Yes (Internal) |
| Max Charge Voltage | 14.8V |
| Max Input Charge Current | 400A |
| Continuous Discharge Current | 750A |
| Max Discharge Current (Burst) | 1,200–1,300A (temperature dependent) |
| Continuous Wattage Range | 9,000–13,000W (100A–400A alt) |
| Burst Wattage | 16,000W |
