Optima Batteries, Inc.
Attn: Cust. Service, X-33 Optima Batteries
5757 N. Green Bay Ave.
Milwaukee, WI 53209 US
P: 888-867-8462
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BlueTop Group 31 Dual Purpose (Deep Cycle & Starting) picture
BlueTop Group 31 Dual Purpose (Deep Cycle & Starting)
USD$ 284.99
Item is available.
Part #: D31M
Service and warranty claims must be handled through Optima Batteries.

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Description
Optima BlueTop D31M group 31 batteries are our most powerful and have the largest energy storage capacity. Usually they can be mounted anywhere a (slightly shorter) group 27 would be used. Ultra high-performance Spiralcell AGM (absorbed glass mat) dual-purpose battery for marine and RV. Blue Top has 3x the cycling capability (rechargeability) with ultimate cranking power for your boat or RV in a maintenance-free package. Perfect for multiple high-demand accessories and trolling motors with 15x the vibration resistance and lighter weight Lower internal resistance provides more efficient power output and faster recharges.

The Optima model number for this battery is D31M. If you are replacing an Optima battery you already have, this model is the same as batteries marked 8052-161, 9052-161, 27931, D31M-1125, BLUED31M, 27551, SC31DM, or N99D31MBLUE. .

Marine Application Guide

Detailed Product Specifications
The Optima model number for this battery is D31M. If you are replacing an Optima battery you already have, this model is the same as batteries marked 8052-161, 9052-161, 27931, D31M-1125, BLUED31M, 27551, SC31DM, or N99D31MBLUE.
Specifications
Weight 59.8lbs.
Length 12.19inches
Height 9.38inches
Width 6.56inches
Cold Cranking Amps900
Cranking Amps1125
Reserve Capacity155
Capacity (c/20 rate)75
Post TypeDual SAE & 5/16 Stainless Stud
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