What does the "Amp-Hour" rating of this battery translate to in deep-cycle mode?

For trolling motor use you would divide the current draw of the motor into the number of amp hours to find out how long the battery would perform at that level.

Does this come with any 5/16 wing nuts for the studs or something's similar?

Yes it does. I'd have to go check, but I think it has a 3/8" stud for the positive and 5/16" for the negative, along with standard battery posts.

I hear these batteries are damaged if they go below 80% charge, is there a guarantee I will receive a fully charged battery?

My boat mechanic is a optima dealer he told me a standard battery charger will never get the battery to full charge you need to get a optima charger. I had a battery that wouldn’t charge. I used the optima charger and it finally got a full charge.

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OPTIMA® Batteries D31M BLUETOP® Boat and RV Dual Purpose Sealed AGM Battery | High Performance Deep Cycle and Starting Battery, 900 CCA, Dual Terminal, Maintenance Free, Versatile Mounting

OPTIMA® Batteries D31M BLUETOP® Boat and RV Dual Purpose Sealed AGM Battery | High Performance Deep Cycle and Starting Battery, 900 CCA, Dual Terminal, Maintenance Free, Versatile Mounting

Product ID: 7352946

Details

Automotive Fit Type
Vehicle Fit
Battery Cell Composition
Lead Acid
Brand
OPTIMA
Item Weight
59.8 pounds
Product Dimensions
6.5"D x x
Size
12-13/16 x x

⚡900 Cold Cranking Amps for instant power

🔋75 AH capacity for long-lasting energy

🛥️15x vibration resistance for rugged durability

$U56457

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Description

🔋 Power your adventures with confidence—never get left stranded again!

VERSATILE MOUNTING - Install it virtually anywhere with dual terminals and spill-proof design—flexibility that fits your lifestyle.
UNMATCHED DURABILITY - With 15x more vibration resistance and up to 3x longer life, this battery keeps you powered through every journey.
SPIRAL CELL TECHNOLOGY - 99.99% pure lead spiral cells deliver cleaner, stronger, and longer-lasting power than conventional batteries.
DUAL PURPOSE POWERHOUSE - Seamlessly switches between deep cycle and starting needs—perfect for your boat or RV adventures.
MAINTENANCE FREE CONVENIENCE - Forget topping off—sealed AGM design means zero maintenance and spill-proof peace of mind.

The OPTIMA D31M BLUETOP is a 12-volt, dual-purpose AGM battery delivering 900 CCA and 75 AH capacity. Featuring SpiralCell technology for superior power and durability, it offers 15 times more vibration resistance and up to three times longer life than standard flooded batteries. Maintenance-free and spill-proof, it supports versatile mounting and is ideal for boats and RVs with high electrical demands.

Specifications

ASIN	B00099DW6G
Automotive Fit Type	Vehicle Specific Fit
Battery Type	Lead Acid
Best Sellers Rank	#102,469 in Automotive ( See Top 100 in Automotive ) #315 in Automotive Replacement Batteries
Brand Name	OPTIMA
Compatible with Vehicle Type	Boat
Customer Reviews	4.2 4.2 out of 5 stars (452)
Global Trade Identification Number	00811405001611
Included Components	battery
Item Dimensions D x W x H	6.5"D x 12.81"W x 9.38"H
Item Type Name	lead_acid_battery
Item Weight	59.8 pounds
Manufacturer	OPTIMA
Manufacturer Part Number	8052161
Manufacturer Warranty Description	See manufacturer
Model Number	8052-161
Number of Items	1
Size	12-13/16 x 6-1/2 x 9-3/8 inch
Terminal	SAE Terminal
UPC	811405001611 721112819839
Unit Count	1 Count
Voltage	12 volts

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$U56457

Duties & taxes included

In stock

Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Uruguay.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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