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.
Warranty: 3 years private use, all OPTIMA® have their warranty details on the top label and are honoured by the warranty stated on that label.
|CCA (BCI 0°F):||720 amps|
|MCA (BCI 32°F):||910 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.)
Model: 25 and 35
These batteries are designed for engine starting applications. They are not recommended or warranted for use in deep cycle applications.
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.|