
iNTRODUCTIONS
Deep cycle 12v Lithium Ion batteries, available in 120Ah or 125 Ah capacity options. These batteries are designed specifically for marine applications and feature advanced Lithium Ion technology, providing exceptional power output and durability.
The Coremax OEM ionic Lithium Ion batteries are ideal for deep cycle use, allowing you to get the most out of your battery. Unlike traditional lead-acid batteries, Lithium Ion batteries have a longer lifespan, are lighter in weight, and offer more consistent performance over time.
Coremax 12 volt 125 ah lithium battery suitable for marine boat and trolling motor, electronics, and other essential equipment. They also come with a built-in Battery Management System (BMS) to protect against overcharging, overheating, and other potential issues, ensuring safe and reliable operation.
Whether you're a recreational boater or a commercial fisherman, these 12v Lithium Ion marine boat batteries are a smart investment for anyone in need of a dependable and efficient power source.
Gearing up for a revolution in marine propulsion, the COREMAX 12V 125Ah batteries, designed for ignition, demonstrate an engineering masterpiece adept at surmounting overcharging tribulations commonly encountered with various outboard marine motors. Particularly, the "COREMAX 12V 125Ah batteries used as starters batteries" demonstrate seamless compatibility with all outboard motors featuring alternators, a lineup inclusive of revered brands such as Mercury and other market leaders.
lithium deep cycle marine battery
12 volt 125 ah lithium deep cycle marine battery is a type of battery that is specifically designed for use in marine vessels. Unlike traditional marine batteries, which are typically made of lead-acid, lithium deep cycle marine batteries use lithium-ion technology to provide power.
125 ah lithium deep cycle marine batteries are designed to be lightweight and durable, making them an ideal choice for use in boats, yachts, and other watercraft. They are also highly efficient, providing a longer lifespan than lead-acid batteries, and can be recharged more quickly.
One of the main benefits of lithium deep cycle marine batteries is their ability to provide consistent power over a longer period of time. This makes them ideal for use in applications where a steady source of power is required, such as powering onboard electronics, lights, and navigation equipment or any other UPS or 12v based solar energy storage systems.


Super BMS
CMX 12 volt 120 /125 ah lithium battery come with Industry leading Management System is guaranteed to last for up to 3000 cycles. CMX 12V OEM Lithium LiFePo4 Batteries go even further as our state-of-the-art battery management system is fully expected to continue with upto 80% of the original performance for 100s, maybe even 1000s of more cycles which in turn extends the lifespan and overall health of the battery far more than the standard 12 volt lithium batteries on the market.
Long Cycle life
When customer Making the decision to upgrade to an COREMAX Lithium Battery will give you a better return on your investment compared with an AGM. Coremax OEM ionic lithium battery package Battery delivers unrivalled cycle life so your power lasts longer. With more than 5 times the cycle life of a lead-acid AGM battery, our 12 volt lithium batteries come in at 3000 life cycles at 100% DoD making CMX Lithium Batteries the superior choice for lithium.
5 year warranty
Have peace of mind knowing your investment is covered by a 5 year warranty. At CMX Lithium Batteries we take pride in our products as we understand the quality of our superior products which is exactly why we offer the industry leading warranty of 5 years. As you know the longer the warranty, the more reliable the product. Our 5 year warranty is simple with 12 month full replacement warranty and 48 month pro-rata replacement warranty. When choosing CMX Lithium Batteries, you’re choosing the most reliable high quality 12V lithium battery in the market.
Drop-in ready
CMX design our batteries to be an easy drop-in replacement for you to save you time and stress with ease. Easy drop-in and easy fast charging. CMX OEM 12V 120ah Lithium Batteries are the only true drop-in upgrade for your existing old AGM or lead-acid heavy batteries. Take the hassle out with our easy drop-in ready 12 volt lithium LiFePO4 batteries. For an easy AGM or lead-acid battery replacement, CMX 12V Lithium Batteries feature an advanced built-in battery management system enabling you to convert battery set up from lead acid/AGM to 12 volt lithium. To make things even easier, you can re-use the same wiring currently set up with your lead acid system with your new deep cycle lithium system.
World Class Safety Features
Coremax Ionic alternative Deep Cycle Lithium Battery 12V125-EP has 12 volts and a 125Ah capacity and is perfect for powering your deep cycle systems. Can be used as a starting – dual Lithium battery comparable to 900A cranking amps for 250hp engines. Ionic Deep Cycle has an internal microprocessor controlled battery management system (BMS) that monitors the key operational parameters during charging and discharging, such as voltages, currents and internal temperatures.
Ionic 12V 125Ah batteries used as starters batteries have been engineered to work with overcharging issues that different outboard marine motors have. “Ionic 12V 125Ah batteries used as starters batteries will work with outboard motors including Mercury and Yamaha.”
Built for Long Lasting Reliable Power
The Ionic Deep Cycle Battery has a cycle life of 3,000 cycles or about 10 calendar years. Our lithium-ion batteries have a usable capacity of 99% compared to 50-60% for traditional lead-acid batteries]. LithiumHub Deep Cycle batteries function in the widest range of temperatures with a discharge temperature range (Functional) of –20°C to 60°C (–4°F to 140°F) and a charge temperature range of 0°C to 45°C (32°F to 113°F). Automatically detects if batteries are too cold to take a charge.
The Ionic Lithium Deep Cycle line has the best weight to power ratio on the market
At 12.55” (L) x 6.5″ (W) x 9.22″ (H) and weighing only 34.2 lbs., the Ionic Lithium Deep Cycle 12V125-EP has the best size to power ratio of any deep cycle battery on the market. Connectors: 3/8 UNC Threads allow the battery to be installed in any direction unlike lead-acid batteries which are fixed. Ionic Lithium Deep Cycle Batteries self-discharge rate per month is between 1-3% compared to lead-acid batteries which are about 30%. Max charge voltage is 14.6V and the discharge cut-off voltage is 10.5V. Max charge current is 80A and max discharge current is 100A / 500A(3s). Can be charged with solar chargers. Can be charged with most traditional lead-acid chargers that do not have “Desulfate” mode, provided the current levels do not exceed lithium battery charge specification. Using a traditional lead-acid charger that reaches 14.4-14.6 volts will allow the battery to be fully charged. Chargers that do not exceed 13.6 volts will only charge the battery to 50% capacity or less.
Who makes ionic lithium batteries
Ionic lithium batteries are made by a variety of companies, both large and small, that specialize in producing lithium-ion batteries for a range of applications. Some of the most well-known manufacturers of ionic lithium batteries include LG Chem, Panasonic, Samsung SDI, and Tesla. These companies are known for their high-quality, reliable batteries, which are used in a wide range of products, from smartphones and laptops to electric vehicles and renewable energy systems.
In addition to these larger manufacturers, there are also many smaller companies that specialize in producing ionic lithium batteries for specific applications, such as marine and RV use. These companies may offer more specialized batteries that are tailored to the needs of their customers, and may also provide additional services such as custom battery design and installation.
Overall, the market for ionic lithium batteries is highly competitive, with many different manufacturers vying for customers in a range of industries. As the demand for clean, renewable energy continues to grow, it is likely that we will see even more companies entering the market and competing to produce the most efficient, reliable batteries for a range of applications.

Product Dimensions
Group 31 measurements
Widest spots. The battery does taper on the very base bottom.
Length : 12.52 in. => 12 1/2 in. => 318mm
Width: 6.496 in. => 6 1/2 in. => 165mm
Height (studs base): 8.465 in. => 8 15/32 in. => 215mm
Height (studs top): 9.2 in. => 9 13/64 in. => 233mm
Lithium batteries should be packaged in a sturdy, non-conductive container that is appropriate for the size and quantity of batteries being shipped. The container should be well-sealed and clearly labeled as containing lithium batteries. If shipping multiple batteries, ensure they are separated from each other to avoid short-circuiting.
When packing and shipping lithium batteries, it's important to choose a sturdy, non-conductive container, follow shipping regulations, and choose a reputable carrier. Monitor the shipment and contact the carrier if there are any issues during transit.
Specifications
Items | Parameter |
---|---|
Battery Type | 12V-120AH Lithium-Ion Battery(LiFePO4) |
Nominal Voltage | 12.8V (12 volt) |
Nominal Capacity | 120Ah (120000mAh) |
Energy | 1536 WH |
Dimensions (L x W x H) | 406*173*208MM |
Weight | 12KG |
Case Material | ABS/ Blue PVC |
Certifications | CE/ISO/UN38.3/MSDS |
Efficiency | 99% |
Self Discharge | <1% per Month |
Series & Parallel Application | max. 4 series LiFePo4 battery cells |
Peak Discharge Current | 150 A |
Peak Charge Current | 50 A |
Operation Temperature Range | -20~60℃ |
Voltage at end of Discharge | 12 Volt |
Working Voltage | 12-14.6V |
Discharge Temperature | -4 to 140 ºF (-20 to 60 ºC) |
Charge Temperature | 32 to 113 ºF (0 to 45 ºC) |
Storage Temperature | 23 to 95 ºF (-5 to 35 ºC) |
Cycle Life | > 3000 cycles |
Self-Discharge Rate | Residual capacity: ≤3%/month; ≤15%/years |
Reversible capacity: ≤1.5%/month; ≤8%/years | |
Storage Temperature & Humidity Range | Less than 1 month: -20℃~35℃, 45%RH~75%RH |
Less than 3 months: -10℃~35℃, 45%RH~75%RH | |
Recommended storage environment: 15℃~35℃,45%RH~75%RH |
Power Your Applications with Dependable Deep Cycle 12V Lithium Ion Batteries
If you're in need of a dependable and potent battery for your specific application, Deep cycle 12v Lithium Ion batteries might be just what you're looking for. These batteries are available in a variety of capacities to suit your needs and are perfect for a wide range of applications, such as marine and RV use, backup power, and solar systems. Utilizing advanced Lithium Ion technology, they provide longer lifespan, lighter weight, and more reliable performance compared to traditional lead-acid batteries.
The ionic Lithium Ion batteries are particularly well-suited for deep cycle use, making them an ideal choice for powering electric motors, electronics, and other critical equipment. They also include a built-in Battery Management System (BMS) that safeguards against overcharging, overheating, and other potential issues, ensuring a safe and dependable operation.
Whether you require a reliable power source for your boat, RV, off-grid home, or need a high-performance battery for your solar system or backup power supply, these 12v Lithium Ion batteries are a smart investment. With their exceptional strength, power output, and cutting-edge technology, they are the perfect choice for any challenging application.




Unleashing Unrivaled Safety Features with COREMAX Deep Cycle Lithium Battery 12V125-EP
COREMAX provide custom OEM service for different brand. Please feel free to contact us. We hope to help more brands like rebelcell bateria to build high quality brand.
In the realm of cutting-edge safety solutions, the COREMAX Deep Cycle Lithium Battery 12V125-EP stands as a true marvel. Boasting a potent 12 volts coupled with a robust 125Ah capacity, this powerhouse emerges as the ultimate choice for energizing your deep cycle systems. Its versatility extends to functioning as both a starting battery and a dual Lithium battery, rivaling even the performance of 900A cranking amps tailored for formidable 250hp engines. What sets the COREMAX Deep Cycle apart is its internal microprocessor-controlled Battery Management System (BMS), vigilantly overseeing crucial operational facets during the charging and discharging processes, encompassing voltages, currents, and internal temperatures.
FAQ
Welcome to contact the Online Services. If it’s not our working time, please click “Send Inquiry” above or “Leave a Comment” below, We will offer you the best quote in 24 hours after we get the product specifications such as voltage capacity application etc.
We advice to get samples and evaluate in advance before bulk order. We will make the bulk order exactly the same as you request.
It depends on your order quantity.Normally 1-2days if we have sample in stock, 5-7days for newly produced samples.10-20 day for big order.
By Express (3-7 working days), suitable for urgent time or small quantity. By Sea (15-30 days), it suitable for mass production. By Air (4-7 days), from airport to airport.
Shelia –
La batterie au lithium DCS LiFePO4 120ah est conçue pour
la longévité et l’efficacité, parfaite pour diverses applications.
La technologie de notre batterie 125 amp hour deep cycle battery
profond 12 V 120 Ah garantit des performances et une fiabilité supérieures.
Harriet –
Les batteries DCS LD (Low Draw) sont le remplacement et la mise à niveau idéaux des batteries AGM, Gel ou autres batteries Batterie au lithium 100ah
plomb. DCS vous donne la possibilité de mettre à
niveau vos batteries actuelles vers la technologie lithium-ion qui peut fournir un minimum de 2000 XNUMX cycles
et présente d’énormes avantages en termes de poids, de performances, de fiabilité
et de durée de vie par rapport aux batteries au plomb
traditionnelles aux prix du plomb.
Elvera –
AGM, Gel, and other lead-acid 120ah battery types are perfect substitutes and upgrades for the DCS LD (Low Draw) batteries.
With the help of DCS, you can replace your old batteries with lithium-ion ones that
have a minimum of 2000 cycle life and offer significant weight, performance, reliability, and service
life benefits over conventional lead-acid batteries at lead acid
pricing.