Stealth Energy Stealth 550 Battery
Key features
- Chemistry: AGM lead-acid
- Nominal voltage: 12V
- Nominal capacity: 55.0AH
- Maximum discharge: 660A (5-second burst)
- Terminals: T6
- Case material: ABS
Stealth Energy Stealth 550 Battery is backordered and will ship as soon as it is back in stock.
Stealth Energy Stealth 550 Battery is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
The Stealth Energy Stealth 550 is a 12V automotive battery for car audio installations. Its 55.0Ah nominal capacity, 660A (5s) maximum discharge current, and T6 terminal give you key figures to compare with your system’s electrical requirements.
Key Features & Benefits
- 55.0Ah nominal capacity: Rated capacities are listed across five discharge periods, helping you compare performance at different loads.
- 660A maximum discharge: The specified 5-second rating helps you assess its short-duration current capability.
- ABS enclosure: The battery uses an ABS container material.
- T6 terminal: Check that this terminal type matches your intended connections.
- Documented charging guidance: Cycle-use and standby-use voltage ranges are provided for charging reference.
Technical Specifications
| Specification | Value |
|---|---|
| Nominal voltage | 12V |
| Nominal capacity (20HR) | 55.0AH |
| Approximate weight | Approx 16.2 kg (35.17lbs) |
| Terminal | T6 |
| Container material | ABS |
| Maximum discharge current | 660A (5s) |
| Internal resistance | Approx 7.5mΩ |
| Nominal operating temperature | 25+3 C (77+5 F) |
| Dimensions | Length: 229+3mm (9.02 inches); Width: 138+2mm (5.43 inches); Container Height: 205+3mm (8.07 inches); Total Height (with Terminal): 211+3mm (8.31 inches) |
| Rated capacity | 57.2 AH/2.86A: (20hr,1.80V/cell,25 C/77 F) 55.0 AH/5.50A: (10hr,1.80V/cell,25 C/77 F) 47.3 AH/9.46A: (5hr,1.75V/cell,25 C/77 F) 42.9 AH/14.3A: (3hr,1.75V/cell,25 C/77 F) 33.6 AH/33.6A: (1hr,1.60V/cell,25 C/77 F) |
| Capacity affected by temperature | 40 C (104 F): 103% 25 C (77 F): 100% 0 C (32 F): 86% |
| Operating temperature range | Discharge: -15~50 C (5~122 F) Charge: 0~40 C (32~104 F) Storage: -15~40 C (5~104 F) |
| Cycle use | Initial charging current less than 15.5A; voltage 14.4V~15.0V at 25 C (77 F); temperature coefficient -30mV/ C |
| Standby use | No limit on initial charging current; voltage 13.5V~13.8V at 25 C (77 F); temperature coefficient -20mV/ C |
| Self-discharge | Batteries may be stored for up to 6 months at 25 C (77 F) and then a freshening charge is required. For higher temperatures the time interval will be shorter. |
Why Choose This Product?
The Stealth 550 provides capacity ratings at 20-, 10-, 5-, 3-, and 1-hour discharge periods. Those figures let you compare its rated output with the load and discharge conditions you expect in your car audio system.
Its stated temperature ranges and charging guidance also give you specific reference points for use, charging, and storage. Review those values alongside your installation requirements when selecting a battery.
Installation & Compatibility Notes
Before installation, compare the battery’s length, width, and total height with the available space. Confirm that the T6 terminal suits your planned connections and that your charging setup follows the stated cycle-use or standby-use guidance.
Discharge, charging, and storage temperature ranges differ. Keep those limits in mind when planning where and how the battery will be used or stored.
Frequently Asked Questions
What is the Stealth 550’s nominal capacity?
Its nominal capacity is 55.0AH at the 20-hour rating. The specification table also lists capacities for shorter discharge periods.
What does the 660A rating mean?
The maximum discharge current is listed as 660A for 5 seconds. It is a short-duration rating, not a continuous current rating.
What charging voltage is listed for cycle use?
Cycle-use voltage is 14.4V~15.0V at 25 C (77 F), with an initial charging current less than 15.5A.
How much space does the battery need?
Its listed length is 229+3mm, width is 138+2mm, and total height with terminal is 211+3mm. Check these dimensions against your available installation space.
Explore More
Explore the Stealth Energy Stealth 550 at 12 Volt Outlet, and explore the brands we sell.
| NOMINAL VOLTAGE | 12V |
| NOMINAL CAPACITY(20HR) | 55.0AH |
| APPROX WEIGHT | Approx 16.2 kg (35.17lbs) |
| TERMINAL | T6 |
| CONTAINER MATERIAL | ABS |
| MAX. DISCHARGE CURRENT | 660A (5s) |
| INTERNAL RESISTANCE APPROX | Approx 7.5mΩ |
| NOMINAL OPERATING TEMP. RANGE | 25+3 C (77+5 F) |
| DIMENSION |
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| RATED CAPACITY |
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| CAPACITY AFFECTED BY TEMPERATURE |
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CYCLE USE |
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 STANDBY USE |
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SELF DISCHARGE |
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