CCA 800
Capacity 50Ah(C/20)
CA 900
BCI Group Size BCI 78
Reserve Capacity BCI: 100 minutes (25 amp discharge, 80 degree F(26.7 degree C), to 10.5 volts cut-off)
MCA 1000
Bullet Points

” Strongest five-second starting burst
” Up to two times longer life
” More than 15 times the vibration resistance
” Completely spillproof, mountable in virtually any position
” Maintenance-free
” Faster recharging
” Optimal starting power

Specifications Details Optima Redtop 78 Ultra high performance SprialCell 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.
Model 78
Part Number 8078-109
NSN Number applied for, product currently available
UPC Code 8.11E+11
Open Circuit Voltage 12.8 Volts
Internal Resistance 0.0030 ohms
Plate Design High purity lead-tin alloy. Wound cell configuration utilizing proprietary SpiralCell Technology.
Electrolyte Sulfuric acid, H2SO4
Case Polypropylene
Case Color Dark Gray
Cover Color Optima Red
Post Type Side Terminal
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: 78. These batteries are designed for engine starting applications. They are not recommended or warranted for use in deep cycle applications.
Alternator 13.3 to 15.0 volts
Battery Charger 13.8 to 15.0 Volts, 10 amps maximum, 6-12 hours approximate
Float Charger 13.2 to 13.8 Volts, 1 amp maximum current (indefinite time at lower voltages)
Rapid Recharge Maximum voltage 15.6 volts. No current limit as long as battery temperature remains below 125 degree F (51.7 degree C). Charge until current drops below 1 amp. All limits must be strictly adhered to.
Nominal Voltage 12 Volts
CCA (Amps) 800
Overview The REDTOP® high-performance AGM battery is the ultimate starting battery designed to deliver a powerful burst of ignition power for a reliable start-up every time. The REDTOP will outperform and outlast traditional batteries in demanding cranking/starting applications. With impressive high-power delivery and extreme resistance to the most common causes of battery failure, the REDTOP is ideal for trucks, SUVs, hot rods, street cars and other applications that require a spillproof starting battery.



Sask Battery provides high quality 8078-109 78 optima battery with best price and great value. Our battery comes already charged, sealed, maintenance free, and ready to install. We insures that almost 100% of the old battery can be rechargeable, recycled and protect the environment.

8078-109 78 Red Top is designed as a dual purpose battery, both starting and deep cycle for people who need a sure-starting, strong cranking, and maintenance free power source for their boat or RV, even in harsh conditions.

The unique SpiralCell design provides a strong and clean power source, ensuring the safety of you, your family and the environment. The higher reserve capacity gives you a longer shelf-life to give you the power when you need it, where you need it. This battery is designed to be used with recreational vehicles or boats with large accessory loads.

Our customer service staff will help you find the best kind of optima batteries for your need. Please call us or email us if you have any further consideration.

8078-109 78 Red Top Optima has the following features:

  • Battery Name : 8078-109 78
  • Battery Model: 10978
  • Part Number: 8078
  • Nominal voltage : 12 Volt
  • Dimensions: 10.06 x 7.31 x 7.35 (inches
  • Capacity: 50 AH (C/20)
  • Weight: 39.5 lbs
  • Group size: 78
  • Post Type: Side Terminal
  • Cold Cranking Amps: 800
  • Cranking Amps : 1000 CA
  • Reverse capacity : BCI: 100 minutes (25 amp discharge, 80°F (26.7°C), to 10.5 volts cut-off)
  • Case: Polypropylene
  • Case Color: Light Gray
  • Cover Color:  “OPTIMA“ Red

Why you shoud choose our 8078-109 78 Red Top Optima: 

  • Both dual-purpose and starting applications available
  • Up to 3x more recharges than other marine batteries
  • More than 15 times the vibration resistance
  • Spill-proof
  • Mountable in virtually any position
  • Maintenance-free
  • Optimal starting power (dual purpose and starting applications available)
  • Works well as a boat battery or RV battery


There are no reviews yet.

Be the first to review “8078-109 78”

8078-109 78

LENGTH: 10.06" HEIGHT: 7.25" WIDTH: 7.31"







Please contact us for Bulk, Wholesale, Government and Business Pricing (204)-783-8787



SKU: 8078-109 78 Category: