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

OPTIMA® Batteries High Performance D31M BLUETOP® Dual Purpose Deep Cycle and Starting Sealed AGM Boat and RV 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 CCA for instant power

🔋75 AH capacity for long-lasting energy

🛥️Dual terminal for versatile mounting

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Description

🔋 Power your journey with OPTIMA® — where endurance meets innovation!

SPIRAL CELL TECHNOLOGY - 99.99% pure lead spiral cells provide 3x longer life and 15x vibration resistance over standard batteries.
DUAL PURPOSE VERSATILITY - Perfect for both deep cycle and starting needs—ideal for boats and RVs with heavy accessory loads.
UNMATCHED STARTING POWER - 900 Cold Cranking Amps deliver reliable ignition even in the harshest weather.
EXTENDED RESERVE CAPACITY - 155 minutes of reserve power ensures your adventures never get stranded.
MAINTENANCE FREE CONVENIENCE - Sealed AGM design means no spills, no maintenance, and mounting flexibility in any position.

The OPTIMA® D31M BLUETOP® is a 12-volt, maintenance-free AGM battery engineered for dual purpose use in boats and RVs. Featuring 900 Cold Cranking Amps, 75 AH capacity, and SpiralCell technology, it offers superior vibration resistance and up to three times longer life than conventional flooded batteries. Its dual terminals and spill-proof design provide versatile mounting options and reliable power delivery, making it the go-to choice for professionals demanding consistent, high-performance energy on the move.

Specifications

ASIN	B00099DW6G
Automotive Fit Type	Vehicle Specific Fit
Battery Type	Lead Acid
Best Sellers Rank	#130,274 in Automotive ( See Top 100 in Automotive ) #378 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
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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In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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

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