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

🔋50 Ah Reserve Capacity

🛠️15x Vibration Resistance

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VT166693

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Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔴 Power up your ride with OPTIMA RedTop — start strong, last longer!

LONG LASTING DURABILITY - 15x more vibration resistance means your battery outlives the competition.
UNMATCHED STARTING POWER - 800 CCA delivers instant ignition, even in the coldest mornings.
RAPID RECHARGE TECHNOLOGY - Faster charging keeps you ready to roll with minimal downtime.
VERSATILE MOUNTING OPTIONS - Dual SAE & GM terminals plus spill-proof design for flexible installation.
MAINTENANCE FREE CONVENIENCE - Sealed AGM design eliminates leaks and hassle—set it and forget it.

The OPTIMA 34/78 RedTop is a 12V AGM battery engineered for superior starting power with 800 Cold Cranking Amps and 50 Ah reserve capacity. Its patented SpiralCell technology ensures 15 times more vibration resistance and up to 3x longer life than standard flooded batteries. Maintenance-free and spill-proof, it features dual SAE and GM terminals for versatile mounting in cars, trucks, and SUVs, making it the ultimate reliable power source for demanding drivers.

Specifications

ASIN	B00075OSC4
Automotive Fit Type	Vehicle Specific Fit
Battery Type	Lead Acid
Best Sellers Rank	#11,542 in Automotive ( See Top 100 in Automotive ) #46 in Automotive Replacement Batteries
Brand Name	OPTIMA
Compatible with Vehicle Type	Passenger Car, Truck
Customer Reviews	4.4 4.4 out of 5 stars (1,864)
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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