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Deep-cycle Marine Batteries
Deep-cycle Marine Batteries from Interstate
When it comes to powering your marine adventures, choosing the right battery can make or break your experience. Deep-cycle marine batteries are essential for providing reliable energy, especially when consistent power is crucial for various applications, from trolling motors to onboard electronics. Whether you're a seasoned sailor or a weekend boater, these vital power sources will enhance your time on the water.
Designed to provide reliable power over an extended period, our deep-cycle marine batteries are ideal for powering your boat and all its accessories, whether your engine is running or not.
Our deep-cycle lineup is designed to be discharged and recharged repeatedly, offering durability and efficiency. Among the varieties available are marine enhanced flooded batteries (EFB), sealed reserve marine (SRM) batteries and our all-new lithium deep-cycle marine batteries.
Each of these options has unique benefits and applications, ensuring that there is a battery to meet every mariner's need. Browse the lineup below.
Marine Enhanced Flooded Batteries (EFB): Power Beyond The Ordinary
Spend more time on the water with Interstate. Our marine enhanced flooded batteries provide the tough, long-lasting, deep cycles needed to power boating accessories like trolling motors, fish finders, sound systems and more. EFB batteries differ from traditional flooded batteries by their ability to endure deep discharges, making them optimized for marine use. These batteries adeptly handle the high electrical demands of modern marine accessories, assuring top-tier performance and reliability.
Sealed Reserve Marine (SRM) Batteries
Our SRM batteries deliver dependable power for marine settings, functioning as dual-purpose deep-cycle batteries. They can start engines and energize on-board equipment such as stereos and refrigerators, meeting the needs of marine environments effectively. With a minimum marine cranking amp rating of 750, they support vital onboard electronics and are chosen for their cost-effectiveness, performance and capacity to maintain consistent energy delivery critical for marine applications.
SRM Battery Features and Benefits:- Sealed design and maintenance-free construction
- Reliable starting power
- Extended life cycle and faster recharge rate
- Versatile applications
Deep-cycle Marine Batteries
Deep-cycle battery sizes and capacities can vary, making it crucial to choose the right battery size for your needs. Selecting the correct size ensures optimal performance, extending the life of your battery for consistent power delivery.
| Part Number |
MSRP
USD |
Group Size
|
CCA
|
CA
|
RC
|
Ah
|
Length | Width | Height | Weight | Voltage | Wet/Dry |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 24M-EFB | $209.95 | 24M | 590 | 700 | 140 | 77 | 10 1/4 | 6 13/16 | 8 11/16 | 45.7 | 12 | W |
| 27M-EFB | $214.95 | 27M | 675 | 800 | 160 | 90 | 12 3/4 | 6 3/4 | 9 1/2 | 50.9 | 12 | W |
| SRM-24 | $154.95 | 24M | 550 | 690 | 140 | 81 | 11 | 6 7/8 | 9 | 46.3 | 12 | W |
| SRM-27 | $164.95 | 27M | 600 | 750 | 160 | 88 | 12 3/4 | 6 7/8 | 9 | 50.3 | 12 | W |
| SRM-31 | $189.95 | 31M | 675 | 845 | 210 | 98 | 13 | 6 3/4 | 9 5/8 | 59.7 | 12 | W |
| SRM-4D | $354.95 | 4DM | 1314 | 1645 | 390 | 195 | 21 | 8 1/4 | 9 5/8 | 117.0 | 12 | W |
| M-24M-MDC | $129.95 | 24M | 400 | 500 | 120 | N/A | 10 1/4 | 6 3/4 | 8 11/16 | 28.4 | 12 | W |
Lithium Deep-cycle Marine Batteries
Lithium deep-cycle marine batteries are designed for high-performance, ensuring reliable power for applications including boats, trolling motors and fish finders. These batteries integrate Battery Management Systems (BMS) to prevent overcharging and extending their lifespan. Offering prolonged battery life, they require less frequent charging, providing more uninterrupted time on the water.
| Part Number |
MSRP
USD |
Group Size
|
CCA
|
CA
|
RC
|
Ah
|
Length | Width | Height | Weight | Voltage | Wet/Dry |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LI24M12V60 | $599.95 | 24M | 135 | N/A | 10 1/4 | 6 5/8 | 8 3/16 | 15.4 | 12 | D | ||
| LI27M12V100 | $799.95 | 27M | 240 | N/A | 12 1/16 | 6 5/8 | 8 3/16 | 26.9 | 12 | D | ||
| LI31M24V60 | $1099.95 | 31M | 135 | N/A | 13 | 6 3/4 | 8 7/16 | 28.7 | 24 | D | ||
| LI31M36V50 | $1199.95 | 31M | 103 | N/A | 13 | 6 3/4 | 8 7/16 | 32.0 | 36 | D |
New Lithium Battery Technology from Interstate®
Key features of Interstate lithium marine batteries:
MORE CYCLE LIFE
Lasts up to 10X longer
than AGM batteries
LIGHTWEIGHT
Less than half the weight
of regular batteries
FASTER RECHARGE
Recharges up to 3X faster
than regular batteries
HIGHER USEABLE CAPACITY
Can use 100% of
its available capacity
CONSISTENT PERFORMANCE
Maintains consistent performance
throughout the entire discharge
MAINTENANCE FREE
Contains no battery acid
and is noncorrosive
10-YEAR LIMITED WARRANTY
Lithium Deep Cycle Battery
10-Year Limited Warranty
IPX-7 PROTECTION
Safe against water immersion
up to 1 meter for 30 minutes
| Feature | Flooded Lead Acid | AGM | Interstate LiFeP04 |
|---|---|---|---|
| Cycle Life | 70-100 Cycles | 100-250 Cycles | > 2,500 Cycles |
| Lifespan | 2-3 Yrs | 3-4 Yrs | 10+ Yrs |
| Weight (100Ah) | 60 lbs | 65 lbs | 27 lbs* |
| Useable Capacity | 50% | 50% | 100% |
| Rechargeability | Standard | Standard | Up to 3x Faster |
| Continuous Discharge Current | No | No | Yes |
| Self-Discharge Rate | Standard | Standard | Excellent |
| Corrosive | Yes | Yes | No |
| Spillable | Yes | No | No |
| Maintenance Free | No | Yes | Yes |
| *Approximate weight using 100 Ah battery |
Lithium Battery Accessories
The lithium accessories lineup includes:
Chargers
Multi-Voltage/Multi-Chemistry Testers
Busbars and Terminal Blocks
Customizable Cables
Trays for Marine and RV Use
Find a Location
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Warranty registration provides fast support, easy claims and ensures protection for your product.
Register NowGet comprehensive installation and usage instructions for your Interstate lithium battery. Explore the manual today.
Download ManualTake a Deep Dive Into Marine Deep-Cycle Batteries
Deep-cycle batteries are designed to provide continuous power over extended periods, making them ideal for powering trolling motors and supporting marine equipment. Unlike starter batteries that deliver short bursts of energy, these 12V lead-acid batteries are perfect for applications like recreational boating where consistent energy is crucial. Whether you're searching for reliable power boating accessories or need dependable marine equipment, deep-cycle batteries are essential.
The lifespan of deep-cycle batteries varies, as they can be recharged and drained multiple times over their use. Manufacturers recommend avoiding discharging below 45% to prolong battery lifespan and maintain efficiency. Following expert battery advice and using resources at Interstate All Battery Center can help extend battery life and ensure it serves you well for long periods. Regularly checking connections and battery cables is advised for optimal maintenance.
To evaluate a lead-acid deep-cycle battery's condition, apply a load test for 15 seconds at 50% of the battery's Cold Cranking Amps (CCA) rating, then compare the voltage against load tester specifications. If the result falls below the minimal threshold, a replacement is necessary to prevent a dead battery. Employing a reliable battery charger and consistent testing can reveal issues early on, reducing the chance of severe problems. Be cautious of fast charging, which can boil the water out of the battery and cause damage. Consult troubleshooting guides suited to your SRM or EFB motor battery for more tailored advice and longevity tips.