Stealth Energy Stealth 150 Battery

The Stealth Energy Stealth 150 Battery is a 12V, high‑drain automotive battery designed for demanding car audio installations, delivering 15.0 Ah nominal capacity and a 225A max discharge rating for short, dynamic bursts.

• Nominal Voltage: 12V — standard for automotive electrical systems and compatible with most car audio electronics.
• Nominal Capacity (20HR): 15.0Ah — energy available when discharged at a 0.75A rate over 20 hours (1.80V/cell, 25°C).
• Approx Weight: 4.9 kg (10.8 lb) — provides a solid, robust package for under-hood mounting without excessive mass.
• Terminal: T12 — compatible with common automotive terminals and wiring configurations.
• Container Material: ABS — durable enclosure suitable for vehicle environments.
• Max. Discharge Current: 225A (5s) — supports brief high-current bursts required by loud, dynamic audio playback.
• Internal Resistance: ~18 mΩ — lower resistance helps reduce voltage drop under load and improves efficiency.
• Dimensions: Length 181.5 mm; Width 76.5 mm; Container Height 167.5 mm; Total Height (with Terminal) 167.5 mm — fits typical space constraints while providing roomy internal capacity.
• Rated Capacity: 15.0 Ah/0.75A (20hr, 1.80V/cell, 25°C); 14.0 Ah/1.40A (10hr, 1.80V/cell, 25°C); 12.8 Ah/2.55A (5hr, 1.75V/cell, 25°C); 11.5 Ah/3.83A (3hr, 1.75V/cell, 25°C); 9.42 Ah/9.42A (1hr, 1.60V/cell, 25°C).
• Capacity vs Temperature: 40°C 103%; 25°C 100%; 0°C 86% — higher temperatures preserve capacity, while cold reduces usable Ah.
• Operating Temperature Range: Discharge −15 to 50°C; Charge 0 to 40°C; Storage −15 to 40°C — defines usable conditions for charging, discharging, and long-term storage.
• Cycle Use: Initial charging current < 4.5A; Voltage 14.4–15.0V at 25°C; Temp coefficient −30 mV/°C — guides charger settings for reliable cycling behavior.
• Standby Use: No limit on Initial Charging Current — allows flexible maintenance charging in standby scenarios.
• Self-Discharge: Stored up to 6 months at 25°C; freshening charge required after storage; shorter intervals at higher temperatures — affects planning for infrequent use.

In a high-draw car audio system, this Stealth battery provides power for multiple amplifiers and loud transients, with a clear spec-driven path for mounting, wiring, and charging. The combination of ABS enclosure, T12 terminal, and defined temperature and storage behaviors supports reliable performance in varied vehicles and climates, while the 225A peak discharge capability supports demanding power delivery during dynamic playback.