OPTIMA® REDTOP® 78 Ultra high-performance SPIRALCELL TECHNOLOGY® AGM (absorbent glass mat) battery with reliable cranking power for your auto, car or truck and twice the life. The OPTIMA® REDTOP® will outperform and outlast traditional batteries in demanding cranking/starting applications. The ultimate high-CCA starting battery for vehicles that have alternators capable of keeping up with all electrical loads.
If you have demanding electrical accessory loads such as winches, audio systems, and other devices, take a look at the YELLOWTOP® product line.
The OPTIMA® model number for this battery is 78. If you are replacing an OPTIMA® battery you already have, this model is the same as batteries marked 8078-109, 9078-109, 178289-7878, RED78, SC78S, or N9978RED.
Includes applicable installation and/or height adapters for this battery.
|NSN:||Number applied for, product currently available|
|UPC Code:||8 11405 00165 9|
|Cold Cranking Amps:||800|
|Nominal Voltage:||12 volts|
|Open Circuit Voltage (fully charged):||12.8 volts|
|Internal Resistance (fully charged):||.0030 ohms|
|Capacity:||50 Ah (C/20)|
|Reserve Capacity:||BCI: 100 minutes (25 amp discharge, 80°F (26.7°C), to 10.5 volts cut-off)|
High purity lead-tin alloy. Wound cell configuration utilizing proprietary
Sulfuric acid, H2SO4
|Case Color:||Dark Gray|
|Cover Color:||“OPTIMA” Red|
|Group Size:||BCI: 78|
|Post Type:||Side Terminal|
|CCA (BCI 0°F):||800 amps|
|MCA (BCI 32°F):||1000 amps|
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.)
Recommended Charging Information
|Alternator:||13.3 to 15.0 volts|
|Battery Charger:||13.8 to 15.0 volts; 10 amps maximum; 6-12 hours approximate|
|Float Charge:||13.2 to 13.8 volts; 1 amp maximum; (indefinite time at lower voltages)|
|Rapid Recharge (Constant voltage charger):||Maximum voltage 15.6 volts. No current limit as long as battery (Constant voltage charger) temperature remains below 125°F (51.7°C). Charge until current drops below 1 amp. – All limits must be strictly adhered to.|