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

🔋75 AH Capacity

🛥️Dual Terminal for versatile mounting

€ 1519.97

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Description

🔋 Power your adventures with OPTIMA – where endurance meets innovation!

SPIRAL CELL TECHNOLOGY - 99.99% pure lead spiral cells deliver 3x longer life and superior vibration resistance.
DUAL PURPOSE VERSATILITY - Perfect for both deep cycle and starting needs in boats and RVs.
UNMATCHED STARTING POWER - 900 CCA ensures reliable ignition even in the harshest conditions.
EXTENDED RESERVE CAPACITY - 155 minutes of reserve power keeps your accessories running longer without compromise.
MAINTENANCE FREE CONVENIENCE - Sealed AGM design means no spills, no maintenance, and flexible mounting options.

The OPTIMA D31M BLUETOP is a 12-volt, maintenance-free AGM battery designed for dual-purpose use in boats and RVs. Featuring 900 cold cranking amps, 75 AH capacity, and advanced SpiralCell technology, it offers up to 3 times longer life and 15 times more vibration resistance than standard batteries. Its dual terminals and spill-proof design allow versatile mounting, making it the ultimate reliable power source for high-demand recreational vehicles.

Specifications

ASIN	B00099DW6G
Automotive Fit Type	Vehicle Specific Fit
Battery Type	Lead Acid
Best Sellers Rank	#94,210 in Automotive ( See Top 100 in Automotive ) #280 in Automotive Replacement Batteries
Brand Name	OPTIMA
Compatible with Vehicle Type	Boat
Customer Reviews	4.2 4.2 out of 5 stars (451)
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	1.0 Count
Voltage	12 Volts

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€ 1519.97

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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