⚡[Final $368] Redodo 12V 100Ah 900 CCA Group 27 Dual Purpose Marine Battery with OTA Bluetooth Auto-Heating
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Redodo 12V 100Ah Group 27 marine battery vs. AGM
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Redodo 12V 100Ah Group 27 dual purpose marine battery with two restart modes
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Redodo Group 27 marine battery with bluetooth
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⚡[Final $368] Redodo 12V 100Ah 900 CCA Group 27 Dual Purpose Marine Battery with OTA Bluetooth Auto-Heating

$379.99 $699.99
Save 45%
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Redodo 12.8V 100Ah lithium dual purpose marine battery Redefines Marine Energy Standards-Experience the car-grade reliability delivering instant max 300HP engine starts and 1KWh power for up to 10hr nonstop marine electronics performance. Rigorously validated on YAMAHA, Honda, Mercury, Suzuki, Evinrude & Tonatsu marine engines for over one year, this marine cold-cranking champion provides the peace of mind only Redodo delivers. Take on every voyage with confidence. 

  • Dual-Purpose Power Revolution: Enjoy the advanced 2-in-1 Lithium power solution that combines engine starting and deep-cycle power - replacing 2 lead-acid batteries with a single unit 75% lighter. No more wiring headaches thanks to simplified setup. Even in the pursuit of trophy bass fishing in shallow waters, where traditional heavy lead-acid batteries can't reach.
  • Endurance Powerhouse: Integrated LiFePO4 technology enables 5,000+ engine starts & 4,000+ cycles at 100% DOD(10-year deep cycle lifespan), outperforming lead-acid batteries' 200-300-start lifespan or 2-3 year lifespan in deep cycle use with zero maintenance. Ideal for even chasing fish in shallow bays or powering navigation systems during offshore voyages; Spend more time adventuring.
  • Unchained Marine Power: Exclusive Reserve Lock technology auto-preserves 25% charge for emergency starts. The dual-purpose battery packs 900 CCA punch, compatible with all outboard motors, backed by 4P (starting) or 4P4S (deep cycle) expandable architecture. With quard-mode charging (outboard/shore/solar/alternator)  and 1kWh capacity for 8-10hr nonstop gear – Fish from sunup to sundown, free from power anxiety.
  • Smart Zero-Retrofit Power: With industry-first Bluetooth OTA upgrades, this Group 27 marine battery offers continuous performance optimization and real-time status monitoring via a smart app. Its drop-in design fits seamlessly into Group 27 / 31 battery compartments (90% boats)—no retrofitting or dual-battery hassles.
  • All-Weather Marine Power: Constructed with IP67 waterproof & salt-spray-proof, this dual-purpose lithium marine battery activates auto-heating at 5°C to ensure charging readiness even in -20°C Arctic conditions, eliminating lead-acid batteries' fatal flaws of freezing-induced failure and acid leakage risks. No more winter charging delays or saltwater corrosion nightmares — just all-weather power for starting, trolling motors, navigation systems, and emergency calls.
  • ABYC-Plus Marine Safety: Crafted with UL-certified LiFePO4 cells withstand 5000+ cranking & 4000+ deep cycles (10-year lifespan). Redodo BMS triggers protection against HIGover-current/voltage/discharge +20 risks, eliminating thermal hazards. Secures your marine ecosystem: outboards, fishfinders, trolling motors, and nav gear in extreme conditions.
  • 5-Year Full-Coverage Warranty: Redodo 12V 100Ah Group 27 dual purpose marine battery extends industry-leading 5-year protection. Enjoy 5 years of worry-free use, knowing your investment is fully protected.

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Options:12V 100Ah Dual Purpose
12V 100Ah Dual Purpose -  $379.99
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⚡[Final $368] Redodo 12V 100Ah 900 CCA Group 27 Dual Purpose Marine Battery with OTA Bluetooth Auto-Heating

⚡[Final $368] Redodo 12V 100Ah 900 CCA Group 27 Dual Purpose Marine Battery with OTA Bluetooth Auto-Heating

$379.99 $699.99

  • FEATURES

  • SPECS

  • FAQ

  • REVIEWS

Redodo 12V 100Ah Group 27 dual purpose lithium marine battery
Redodo 12V 100Ah Group 27 dual purpose lithium marine battery
Redodo 12V 100Ah Group 27 lithium marine battery vs. AGM
Redodo 12V 100Ah Group 27 marine battery with save-power function
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safety design of Redodo 12V 100Ah Group 27 dual purpose 900 CCA marine battery

SPECS

BATTERY
Cell Type：
LiFePO4 Starting Cells
Warranty：
5 years
Cycle Life：
4000+
Nominal Voltage：
12.8V
Rated Capacity：
100Ah
Energy：
1280
Max. Expansion (Parallel & Series)：
For Starting and Deep cycle: 4P1S; For ONLY Energy Storage: 4P4S
Internal Resistance：
<40mΩ
Certifications：
UL-1973, FCC, CE, RoHS, UN38.3, CE RED, FCC ID
Hot Cranking Amps (HCA)：
1200A
Marine Cranking Amps (MCA)：
1000A
Cold Cranking Amps (CCA)：
900A
Bluetooth：
5.0
BMS
BMS：
100A
Max. Continuous Output Power：
1280Wh
Max. Continuous Charge Current：
100A 1C
Max. Continuous Discharge Current：
100A 1C
Max. Charge Current (Outboard Alternator)：
150A
Max. Charge Current (Outboard Charger)：
100A
CHARGE
Charge Method：
CC/CV
Charge Voltage：
14.4V±0.2V
Recommend Charge Current：
20A 0.2C
TEMPERATURE
Charge Temperature：
-20°C to 50°C/-4°F to 122°F
Discharge Temperature：
-20°C to 60°C /-4°F to 140°F
Storage Temperature：
-10°C to 50°C/14°F to 122°F
Low-Temperature Protection：
Support
Low-Temperature Charging Protection Auto Recovery：
Support
SELF-HEATING
Heating Temperature：
-20°C to 5°C/-4°F to 41°F
Approx. Heating Time：
40-60 mins(From-10°C/14°F); 60-80 mins (From-20°C/-4°F)
Required Minimum Charge Current for Heating Function：
10A
OTHERS
Terminals：
M8 bolt
Weight Approx.：
22.82 lbs
Size：
L12.13*W6.69*H8.31 inch
Housing Material：
ABS Housing
Protection Class：
IP67

FAQ

Q: What does CCA mean on a battery​?

A:

CCA stands for Cold Cranking Amps, which is a measure of a battery's ability to start an engine in cold temperatures. Higher CCA ratings mean the marine battery can provide more power in cold conditions, making it an essential factor for boats used in colder climates.

Read the blog: What Are Cold Cranking Amps (CCA)

Q: What does Group 27 mean on a marine battery?

A:

"Group 27" is a classification defined by the Battery Council International (BCI) that refers to the physical dimensions and general specifications of a battery. A Group 27 marine battery typically measures around 12.1 x 6.8 x 8.9 inches. This size is commonly used in dual-purpose marine batteries due to its balance of cranking power and deep cycle performance.

Q: What's the Max.charging current for the 900 CCA battery?

A:

If you charge the battery with a AC charger, the max.charging current is 100A;

If you charge the battery with the alternator in the fuel engine, the max.charging current is 150A.

Q: What's the waterproof rating of the dual purpose lithium marine battery?

A:

The dual purpose lithium marine battery can support IP67 protection. To avoid potential issues, it is recommended to install the 12V marine battery in a waterproof battery container and/or position it at a higher level. This will prevent the battery from being partially or wholly submerged in the water accumulated at the bottom of the boat.

Q: Can the Group 27 dual purpose marine battery be connected in series and parallel?

A:
  • For Starting:

You can connect up to 4 identical batteries in parallel for a battery system of up to 12V (12.8V) and 4000Ah.

  • For Energy Storage Only:

You can connect up to 16 identical batteries in the following ways:

  1. 4 in series to create a 48V (51.2V) battery system, or
  2. 4 in parallel for a 560Ah battery system.

Q: Can the 900 CCA marine battery be used to start a vehicle?

A:

DO NOT use this 900 CCA battery to start any type of vehicle, including cars, motorcycles, or tractors.

Q: What is the difference between Group 24 and 27 marine batteries?

A:

The main difference lies in size, weight, capacity, and power:

  • Size: Group 27 batteries are physically larger than Group 24 batteries.
  • Weight: Group 27 batteries are heavier due to their larger size and higher capacity.
  • Capacity: Group 27 batteries usually provide higher amp-hour (Ah) ratings, meaning they can run devices longer.
  • Power Output: With the higher capacity, Group 27 batteries tend to offer more power than Group 24 batteries.

If space and weight aren't an issue, Group 27 is ideal for users who need more capacity in marine applications.

Read more: Group 24 vs. Group 27 Marine Batteries

REVIEWS

Why buy from Redodo?

Grade-A cells at super friendly price

We do 100% testing of all Redodo batteries before shipping to you, with grade-A cells and high-quality materials at radically prices than comparable retails.

2-5 working days fast and free delivery

In order to let you start your quality life faster, our team is able to deliver your order from our US local warehouse to your front door within 2-5 business days.

Lifetime technical consult service

Redodo provides 5-year warranty for batteries (2-year for chargers) and lifetime consultation support, we hope you can feel easy and enjoyable when you use the battery.

We love to help

Our Team injects passion, integrity, respect, and professionalism into our LiFePO4 batteries and business, if you have any questions, please feel free to contact us, we love to help.