Ok so I have a aftermarket stereo double din and big speakers. I read yellow top was better for my use. Is this battery good too?

The Yellow Top might be better for your needs. Red Tops provide more cranking power. Yellow Tops provide more reserve if you listen to your stereo with the engine off. I had a Yellow Top in a car with an underdrive pulley on the alternator and a 1,200 watt system (RMS not that peak rating crap either) and that battery lasted through 5 years of torture.

Right now i have 2 yellow tops, 1 under the hood for engine, and 1 in the trunk for my sub. would i be better off putting a red top for engine/4eat?

From what I have been told---the Red top has higher initial cranking power and the yellow top has better storage capabilities---I have them on my trailers.

will it fit and work with my ford 150?

Most Fords have 65 group batteries in them some have 34 group all that don't matter what matters is what side the positive post is on. If the positive is on the right side then you will need a reverse post battery. I believe a 9020-164 has a reverse post. But for the battery box size these optimas are universal and will fit almost any battery box in the western hemisphere. So just take a peek at yours if the label is facing you and red on right then you have a reverse post, but if not then the standard 34/78 will fit perfectly. On the optima box it's self there is a packaging cover that comes will all optimas and. There is several adapters to make the 34/78 battery fit most cars and trucks.

How far can i run this down before recharging if i used it as a coach battery in an rv

The deeper the discharge, the shorter the battery life. Lots of people who know batteries recommend no lower than 12.2 V.; or say 55%.

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OPTIMA Batteries High Performance 34/78 RedTop Sealed AGM Car, Truck, and SUV Starting Battery, 800 CCA, Dual SAE and GM Terminals, Maintenance Free, Versitile Mounting

Product ID: 2043836

Details

Battery Cell Composition
Lead Acid
Brand
OPTIMA
Item Weight
38.8 Pounds
Number Of Cells
6
OEM Part Number
8004-003
Product Dimensions
6.88"D x 10"W

⚡800 Cold Cranking Amps for instant power

🔋50 Ah C20 Capacity with 100 min reserve

🛠️15x vibration resistance for rugged durability

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$U38652

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Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Power up your ride with the battery that never quits!

BUILT TO OUTLAST - Up to 3x longer lifespan and 15x more vibration resistance than standard flooded batteries.
SPIRAL CELL TECHNOLOGY - 99.99% pure lead spiral cells deliver cleaner, stronger, and longer-lasting power.
UNMATCHED STARTING POWER - 800 CCA ensures your engine fires up instantly, even in the harshest weather.
VERSATILE MOUNTING OPTIONS - Mount it virtually anywhere in your vehicle without worry, thanks to its leak-proof design.
MAINTENANCE FREE CONVENIENCE - Forget topping off fluids—sealed AGM design means zero upkeep and no spills.

The OPTIMA 34/78 RedTop is a 12-volt sealed AGM battery delivering 800 cold cranking amps and 50 Ah capacity with 100 minutes reserve. Featuring SpiralCell technology for superior power and durability, it offers 15 times more vibration resistance and up to three times longer life than conventional flooded batteries. Maintenance-free and versatile in mounting, it’s engineered for reliable starting performance in cars, trucks, and SUVs under all conditions.

Specifications

ASIN	B00075OSC4
Automotive Fit Type	Vehicle Specific Fit
Battery Type	Lead Acid
Best Sellers Rank	#9,895 in Automotive ( See Top 100 in Automotive ) #28 in Automotive Replacement Batteries
Brand Name	OPTIMA
Compatible with Vehicle Type	Passenger Car, Truck
Customer Reviews	4.4 4.4 out of 5 stars (1,892)
Global Trade Identification Number	00721112819778
Included Components	battery
Item Dimensions D x W x H	6.88"D x 10"W x 7.81"H
Item Type Name	lead_acid_battery
Item Weight	38.8 Pounds
Manufacturer	OPTIMA
Manufacturer Part Number	8004-003
Manufacturer Warranty Description	parts
Model Number	8004-003
Number Of Cells	6
OEM Equivalent Part Number	8004-003
Size	10 x 6-7/8 x 7-13/16 inch
Terminal	SAE Terminal
UPC	721112819778 721112824758
Voltage	12 Volts

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