ST-750 American Bass Audio Stealth 750 | 75Ah AGM Battery | Maintenance-Free, Sealed Power for Car Audio & More

Up To 1800 Watt Amplifiers

12V AGM Battery, 75 AH

The Stealth 750 from Stealth Energy by American Bass delivers the deep reserve power that demanding car audio systems need. With 75 amp-hours of capacity and support for amplifier setups up to 1800 watts, this sealed AGM battery is engineered to reduce voltage drop, maintain stable output during hard bass hits, and keep your system sounding clean — whether you're competing or just enjoying the ride.

Designed specifically for car audio, the ST-750 uses Absorbed Glass Mat technology in a fully sealed, maintenance-free ABS housing. Mount it in virtually any position without worrying about spills, corrosion, or topping off fluids. A 900A max discharge current (5-second burst) and ultra-low 6.6mΩ internal resistance ensure fast power delivery when your amplifiers need it most.

Why Choose the Stealth 750?

The ST-750 sits in the sweet spot of the Stealth Energy lineup — enough capacity to anchor a serious multi-amplifier build without the weight and footprint of a full 100Ah battery. Use it as a dedicated secondary battery or as your primary power source for systems that demand more than a stock battery can provide.

NOMINAL VOLTAGE	12V
NOMINAL CAPACITY(20HR)	75.0AH
APPROX WEIGHT	Approx 22.3 Kg (49.2Ibs)
TERMINAL	T14
CONTAINER MATERIAL	ABS
MAX. DISCHARGE CURRENT	900A (5s)
INTERNAL RESISTANCE APPROX	Approx 6.6mΩ
NOMINAL OPERATING TEMP. RANGE	25+3 C (77+5 F )
DIMENSION	Length: 260+3mm (10.20 inches) Width: 168+2mm (6.61 inches) Container Height: 208+3mm (8.19 inches) Total Height (with Terminal): 14+3mm (8.43 inches)
RATED CAPACITY	80.4 AH/: (20hr ,1.80V/cell,25 C/77 F) 75.0 AH/7.50A: (10hr ,1.80V/cell,25 C/77 F) 65.8 AH/13.2A: (5hr ,1.75V/cell,25 C/77 F) 59.6 AH/19.9A: (3hr ,1.75V/cell,25 C/77 F) 48.5 AH/48.5A: (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 TEMP.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 22.5A.Voltage 14.4V~15.0V at 25 C(77 F)Temp. Coefficient -30mV/ C
STANDBY USE	No limit on Initial Charging Current Voltage 13.5V~13.8V at 25 C(77 F)Temp. 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.

Support

• Specification Sheet (PDF)