Product Spec Sheet RT U 4,2 RedTop0 pages
OPTIMA® RedTop U 4,2 Battery Model: RT U 4,2 Part Number: 804 250 000 888 2 Nominal Voltage: 12 volts NSN: 6140 01 457 4339 Description: High power, sealed lead acid, engine starting battery Physical Characteristics: Plate Design: High purity lead-tin alloy. Wound cell configuration utilizing proprietary SPIRALCELL® technology. Electrolyte: Sulfuric acid, H2SO4 Case: Polypropylene Color: Case: Dark Gray Cover: "OPTIMA" Red Group Size: BCI: 34/78 Standard Metric Length: Width: Height: Weight: 10" 6.875" 7.813" 38.8 lb. 254 mm 175 mm 200 mm (height at the top of the terminals) 17.6 kg Terminal Configuration: SAE / BCI automotive and GM style side terminal (3/8 - 16 UNC - 2B, threaded nut). Performance Data: Open Circuit Voltage (fully charged): Internal Resistance (fully charged): Capacity: Reserve Capacity: 12.8 volts 0.0030 ohms 50 Ah (C/20) BCI: 100 minutes (25 amp discharge, 80°F (26.7°C), to 10.5 volts cut-off) Power: CCA (EN -18°C): MCA (BCI 0°C): 815 amps 1000 amps Recommended Charging: The following charging methods are recommended to ensure a long battery life: (Always use a voltage regulated charger with voltage limits set as described below.) Model: RT U 4,2 These batteries are designed for engine starting applications. They are not recommended or warranted for use in deep cycle applications.
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