OPTIMA® REDTOP® 25 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 25. If you are replacing an OPTIMA® battery you already have, this model is the same as batteries marked 8025-160, 9025-160, 27925, RED25, SC25A, or N9925RED.
Includes applicable installation and/or height adapters for this battery.
|NSN:||Number applied for, product currently available|
|UPC Code:||8 11405 00160 4|
|Cold Cranking Amps:||720|
|Nominal Voltage:||12 volts|
|Open Circuit Voltage (fully charged):||12.8 volts|
|Internal Resistance (fully charged):||0.0030 ohms|
|Capacity:||44 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: 25|
|Post Type:||SAE Post|
|CCA (BCI 0°F):||720 amps|
|MCA (BCI 32°F):||910 amps|
The following charging methods are recommended to ensure a long battery life:
Model: 25 and 35
Recommended Charging Information
|Alternator:||13.3 to 15.0 volts; no amperage limit|
|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 current (indefinite time at lower voltages)|
|Rapid Recharge (Constant voltage charger):||Maximum voltage 15.6 volts. No current limit as long as battery temperature remains below 125°F (51.7°C). Charge until current drops below 1 amp. All limits must be strictly adhered to.|