MADE IN THE USA!
Free ShippingProduct Specifications for DEKA 9A34M Marine Master AGM Deep Cycle Battery - 12V Group 34M
| BM Part #: | SLA-9A34M |
|---|---|
| Brand: | Deka |
| Made In: | U.S.A. |
| Battery Polarity: |
|
| Voltage: | 12 Volt |
| Cold Cranking Amps: | 750 CCA |
| Capacity: | 55 Ah |
| Terminals: | DIN |
| Type: | AGM |
| Battery Size: | Group 34 |
| Length: | 10.75" |
| Width: | 6.86" |
| Height: | 7" (8.38" Top of Terminal) |
| Shipping Weight: | 47.00Lbs |
| Warranty: | 12 Month |
| Rechargeable: | Yes |
| Reserve Capacity: | 120 Minutes |
- Made in the USA. Why it matters:
- Superior craftsmanship; rigorously tested; high-quality parts.
- BCI Group Size 34M: Designed for marine applications
- 12 Volt AGM Battery: Combines deep cycle & starting power in one battery
- Ideal for Marine Use: Perfect for trolling motors, depth finders, and marine electronics
- AGM Technology: Maintenance-free, spill-proof, and vibration-resistant
- Rugged, Corrosion-Resistant Construction: Built for harsh marine environments
- Fast Recharge & Long Cycle Life: Designed for repeated deep discharges
- Made in the USA: Manufactured by East Penn, a leader in battery technology
- 1-Year Warranty: Supported by Battery Mart’s expert team
Product Description
Deka Marine Master 9A34M AGM Battery – 12 Volt, Group 34M
The Deka Marine Master 9A34M AGM Battery is a premium 12-volt marine battery built for reliable starting power and long-lasting performance in harsh marine environments. Designed with Absorbed Glass Mat (AGM) technology, this maintenance-free battery delivers exceptional durability, fast charging, and spill-proof operation—making it ideal for boats, RVs, and other demanding applications.
Engineered for Marine and RV Use
Whether you need dependable starting power for your boat or consistent performance for your RV's lighting and instrumentation, the Deka 9A34M is built to handle the job. With high cranking amps and a rugged, sealed design, it's ready for rough conditions on or off the water.
- Perfect for marine, RV, and other starting and accessory power needs
- Sealed, non-spillable design for safer installation and transport
- Maintenance-free Absorbed Glass Mat (AGM) technology
- Top post design with left-side positive terminal
Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling.
Frequently Asked Questions
What type of charger should I use with the Deka 9A34M?
A: We recommend using a 12-volt battery charger that is compatible with AGM batteries. The charger should regulate its voltage automatically to avoid overcharging or undercharging, both of which can shorten the battery’s service life.
How should I store the Deka 9A34M AGM battery in the off season?
A: Fully charge the battery before placing it in a cool, dry location. Check its charge periodically and recharge it with an AGM-compatible maintainer when necessary. Avoid storing a discharged battery in freezing conditions, since a low state of charge makes lead acid batteries more vulnerable to freeze damage.
Can the Deka 9A34M replace a flooded marine battery?
A: In many applications, an AGM battery can replace a similarly sized flooded lead-acid marine battery, but compatibility should not be determined by group size alone. Confirm the required voltage, dimensions, terminal placement, cranking power, and capacity before purchasing. The Deka 9A34M has a left-positive terminal arrangement, so the battery cables must comfortably reach the correct terminals without being stretched or crossed.
Can the Deka 9A34M battery be connected in parallel with another battery?
A: Two compatible 12-volt batteries may be connected in parallel to increase available capacity while maintaining a 12-volt system. For the best performance, the batteries should be the same model, age, capacity, and state of charge. Mixing a new battery with an older or differently rated battery can cause uneven charging and discharging.
How can I tell when my Deka 9A34M AGM battery needs to be replaced?
A: Possible signs include slower engine cranking, noticeably reduced accessory runtime, difficulty holding a charge, or repeated need for recharging. Before replacing it, inspect the terminals and cables, fully charge the battery, and have both the battery and charging system tested.
Cross Reference & Compatibility
- Alliance Truck Parts ABP A9A34M
- Astrolite 34/78AGM
- Astrolite AGM34M-1
- Autocraft 34M-1050
- AutoPride AP34M
- Batteries Plus SLI34MAGM
- Blain's Farm & Fleet 34MAGMS
- Bosch S6-34M
- Carquest NG34M
- Deka 9A34M
- Diehard 50032
- Duracell 9A34M
- Duracell AGM34M
- Federated AP34M
- Ferguson AGM34M-1
- Fisher AP34M
- NAPA 9834M
- NAPA 34M-9AGM
- Parts Master AGM34M
- Parts Master AP34M
- Parts Plus AP34M
- Pep Boys BLUE34
- Perfect Start AGM34DP36
- Resource Power AP34M
- Road Runner Batteries M34AGM
- Sam's Club SL34MAGM
- SuperStart 34MAGM
- Truck Pride AP65
- West Marine 15020175
Customer Reviews
I love Deka batteries. Always reliable, always there when I need them. I wouldn't have anything else, maybe lithium, but they are to expensive.
As described
I purchased a 24M7 lead acid Marine Master battery, in July 2000. I just load tested it and it finally would not hold a charge. After almost 6 full years of marine life! It had an 800 CCAmp rating. I cant seem to find it (800 CCA) anymore. So I purchased a new Marine Master AGM 750 CCAmp battery from battery mart online. In just a few days, it arrived. I fully charged it last note. Did a load test that fully passed, ant installed it in my boat. I would highly reccomend Deka for marine batteries. It cost about 100 bucks extra, but I depend on only 1 battery to bring me back when I am way off shore. I wouldn't have it any other way. I am not getting paid for this review. I thought everyone out there, who needs reliability, should know how Deka Batteries served me.
Ordering and shipping were easy and quick. Battery went in without any issues.
COMPARED WITH OTHERS, THIS IS BEST VALUE FOR THE SPECIFICATIONS. aLSO,I DIDN'T HAVE TO BE BOTHERED WITH CORE DEPOSITS AND CORE RETURNS.
i us it for my 5th wheel power and chang it with solar power and works very well...
So far I am very please with this purchase. Battery mart had the best prices around. Time will tell if the battery holds up but when not in use it is on a trickle charger so all should be good. I will update if it fails prematurely. Good STRONG battery
