---
product_id: 633116838
title: "Heavy Duty Marine Deep Cycle Battery 12V 100Ah 925CCA (31-AGM7) Pure Matrix Power Commercial AGM Cranking Replacement (Group Size 31) GEM Cars, Yachts, Extra Fuel Tank Trucks"
brand: "interstate batteries"
price: "R18827"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Interstate Batteries"
url: https://www.desertcart.co.za/products/633116838-heavy-duty-marine-deep-cycle-battery-12v-100ah-925cca-31
store_origin: ZA
region: South Africa
---

# 400 extreme deep cycles 100Ah capacity powerhouse 10% more power at -20°F Heavy Duty Marine Deep Cycle Battery 12V 100Ah 925CCA (31-AGM7) Pure Matrix Power Commercial AGM Cranking Replacement (Group Size 31) GEM Cars, Yachts, Extra Fuel Tank Trucks

**Brand:** interstate batteries
**Price:** R18827
**Availability:** ✅ In Stock

## Summary

> ⚡ Power that never quits, even when the cold bites!

## Quick Answers

- **What is this?** Heavy Duty Marine Deep Cycle Battery 12V 100Ah 925CCA (31-AGM7) Pure Matrix Power Commercial AGM Cranking Replacement (Group Size 31) GEM Cars, Yachts, Extra Fuel Tank Trucks by interstate batteries
- **How much does it cost?** R18827 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/633116838-heavy-duty-marine-deep-cycle-battery-12v-100ah-925cca-31)

## Best For

- interstate batteries enthusiasts

## Why This Product

- Trusted interstate batteries brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual-Purpose Power:** Combines high-cranking amps (925 CCA) with extreme deep-cycle capability for versatile performance.
- • **Unmatched Cycle Life:** Delivers 4X the deep cycles of conventional AGM batteries for unbeatable longevity.
- • **Pure Matrix Technology:** Advanced pure lead AGM design extends battery life and power delivery beyond standard options.
- • **Eco-Conscious & Dependable:** Backed by 70 years of trusted power and a robust recycling program for sustainable energy solutions.
- • **Extreme Temperature Resilience:** Outperforms in freezing conditions with 10% more power at -20°F, ensuring reliability when it matters most.

## Overview

The Interstate Batteries 31-AGM7 is a premium 12V 100Ah marine deep cycle battery featuring Pure Matrix AGM technology. It delivers 925 cold cranking amps and an industry-leading 400 deep cycles, doubling the lifespan of conventional AGM batteries. Engineered for extreme temperatures and heavy-duty applications like yachts, trucks, and GEM cars, it offers reliable, long-lasting power with eco-friendly recycling support.

## Description

Buy Interstate Batteries Heavy Duty Marine Deep Cycle Battery 12V 100Ah 925CCA (31-AGM7) Pure Matrix Power Commercial AGM Cranking Replacement (Group Size 31) GEM Cars, Yachts, Extra Fuel Tank Trucks: Batteries - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: The Best Diesel Batteries - These are the perfect heavy duty batteries we needed for our Dodge Ram 350 Diesel Truck! Perfect cranking power for cold mornings as well as any time of day! And a great value for our money to boot! Thank You 😊
Review: Great Battery - AWESOME BATTERY, LUV IT

## Features

- COMMERCIAL PURE LEAD AGM: lnterstate's 31-AGM7 is a premium performing battery for both cranking & extreme cycling applications. Delivers 400 extreme deep cycles while conventional alloy AGM products only deliver 100 cycles. With this impressive cycle life advantage, 31-AGM7 offers the lowest cost per cycle & can be stored for up to 2 years. This is 2X that of conventional AGM batteries
- IDEAL APPLICATIONS: Refrigeration units, APU units, Uninterruptible power supply, GEM cars, Large yachts, Oil-field equipment, Trucks with extra fuel tanks requiring batteries in cab, Applications requiring high-power & high-energy, Applications in extreme temperatures
- 2X-3X MORE BATTERY LIFE: The 2-in-1 pure lead AGM battery delivers high-cranking & extreme deep-cycle power, plus a service life 3X longer than conventional flooded batteries & 2X longer than alloyed lead AGM batteries
- PURE MATRIX ADVANTAGE: Equipped with Pure Matrix power to deliver super-premium battery life & power for starting & accessories. Some batteries serve up more starts, & others deliver deep cycling. Our line does both - in a bigger way. The Pure Matrix power battery doesn't come to its end of life as quickly as conventional lead alloy AGM products. This battery is also not as affected by extreme cold temperatures as a conventional AGM; this battery delivers 10% more power at -20° F (-6.67 ° C), making it Outrageously Dependable
- MOST TRUSTWORTHY POWER SOURCE: For 70 years, Interstate Batteries purpose has been to deliver the most Outrageously Dependable source of power to the world. Our customers come first, so we strive to create a positive experience for all. We recycle more batteries than we sell; please return to an Interstate All Battery Center near you so we can continue recycling

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BHX4F6LX |
| Batteries | 1 12V batteries required. (included) |
| Best Sellers Rank | #58,096 in Automotive ( See Top 100 in Automotive ) #199 in Automotive Replacement Batteries |
| Brand | Interstate Batteries |
| Customer Reviews | 4.1 4.1 out of 5 stars (41) |
| Date First Available | October 11, 2022 |
| Item Weight | 69.5 pounds |
| Item model number | 31-AGM7 |
| Manufacturer | Interstate Batteries |
| Manufacturer Part Number | 31-AGM7 |
| Package Dimensions | 16 x 14 x 11.5 inches |
| Special Features | Rechargeable |

## Product Details

- **Battery Cell Composition:** Lead Acid
- **Brand:** Interstate Batteries
- **Item Weight:** 69.5 Pounds
- **Manufacturer:** Interstate Batteries
- **Terminal:** Marine Terminal
- **Vehicle Service Type:** Passenger Car, Truck
- **Voltage:** 12 Volts

## Images

![Heavy Duty Marine Deep Cycle Battery 12V 100Ah 925CCA (31-AGM7) Pure Matrix Power Commercial AGM Cranking Replacement (Group Size 31) GEM Cars, Yachts, Extra Fuel Tank Trucks - Image 1](https://m.media-amazon.com/images/I/71+NS81N40L.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The Best Diesel Batteries
*by E***S on February 1, 2026*

These are the perfect heavy duty batteries we needed for our Dodge Ram 350 Diesel Truck! Perfect cranking power for cold mornings as well as any time of day! And a great value for our money to boot! Thank You 😊

### ⭐⭐⭐⭐⭐ Great Battery
*by S***. on February 23, 2026*

AWESOME BATTERY, LUV IT

### ⭐⭐⭐⭐⭐ Warranty unavailable
*by L***D on November 11, 2025*

Arrived on time but with no paperwork. I hope they last in my class A.

## Frequently Bought Together

- Interstate Batteries Heavy Duty Marine Deep Cycle Battery 12V 100Ah 925CCA (31-AGM7) Pure Matrix Power Commercial AGM Cranking Replacement (Group Size 31) GEM Cars, Yachts, Extra Fuel Tank Trucks
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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-25*