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Enter the promo code above: CLEANBOAT
*ONLY available for products with carriers: Mondial Relay, Colissimo, Chronopost
Mastervolt MLI Ultra Lithium 12V 1250 - 1.25 kWh battery
The Mastervolt MLI series offers extreme lithium-ion performance even under the most difficult conditions, such as high charge and discharge currents
SPECIAL LIMITED TIME OFFER
Current promotion
-5% for 1100€ of purchases*: SB737MVB
from 150€ of purchases**
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This product will be shipped with the carrier
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ANY INFORMATION ABOUT THIS PRODUCT?
Contact us by chat!Monday to Saturday 10 a.m. to 12 p.m. and 2 p.m. to 5 p.m.
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Available everywhere in Europe
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Possible on request for quote
MLI Ultra Lithium 12V 1250 - 1.25 kWh Mastervolt battery. Robust, extreme performance...
Ultimate performance, rugged lithium-ion batteries .
The MLI series offers extreme lithium-ion performance even under the most difficult conditions, such as high charge and discharge currents, humid environments, mechanical shocks or vibrations. This is achieved by combining our best-in-class Lithium-Iron Phosphate (LiFePO4) cells with a proprietary Battery Management System (BMS) inside a rugged, waterproof enclosure.
The sophisticated Mastervolt BMS guarantees optimal use of each individual cell. Built-in battery monitoring gives you accurate and up-to-date information about your battery's status. Integrated NMEA2000, CZone and MasterBus communication allows for complete system integration, to ensure the best possible charge, while maximizing your battery life.
Self-balancing algorithm
MLI Ultra batteries are equipped with a self-balancing algorithm that predicts the behavior of each battery cell and proactively balances itself, resulting in a faster and more efficient charge cycle. This system helps eliminate unnecessary stress on the cells, resulting in even longer battery life.
Performance in freezing cold weather
The MLI Ultra 1250 comes with an integrated thermal heating pad and sophisticated low temperature control to ensure maximum charging performance in freezing temperatures. In cold weather, it uses the attached charger to power the heating pad and keep the battery cell temperature above freezing. This ensures the fastest possible charge and full power capabilities, even on the coldest days. Integrated battery switch
The integrated battery safety switch disconnects the battery cells in the event of anomalies. This is based on smart algorithms analyzing all battery status details such as charging current, temperature, cell details, etc. Where other integrated switches have current limitations, the MLI Ultra 1250 will continue to supply power up to 200 amps continuously.
Plug-and-play by automatic configuration
Installing a Lithium Ion battery has never been easier. Connect the MLI Ultra 1250 to any compatible Mastervolt charger, connect the communication cable and the battery automatically configures the charger to match the battery. This way, a smooth and hassle-free charging experience is ensured without the need for configuration tools.
Main characteristics
- Ultimate performance, rugged lithium-ion batteries.
- BMS and LiFePO4 chemistry to the highest safety standards.
- Instant replacement for Group 31 and Group 49 size batteries (85-90Ah).
- More than three times the life of traditional batteries.
- Up to 70% space and weight savings.
- High charge/discharge rate up to 2C.
- Quick charge in 60 minutes.
- Serial connection up to 48V possible.
- Integrated battery switch.
- Integrated thermal heating pad with control.
- Integrated battery monitoring (Voltage, Current, State of charge, Remaining time).
- MasterBus communication with any Mastervolt battery charger or smart remote control.
- CZone and NMEA2000 compatible.
- Fully waterproof.
- UN 38.3, CE, E-Mark and FCC certified.
- Conforms to UL1973 and RVIA standards, TEI listed.
Mastervolt is synonymous with autonomous and reliable energy solutions. As specialists in the management, conversion and storage of electrical energy, we offer a complete catalog of products in powers ranging from 300 W to 40 kWatts. Our electrical systems are widely used in demanding business sectors such as marine, vehicle, offshore, industrial, stand-alone solar and infrastructure.
- Range / Type
- Lithium battery
- Voltage
- 12 Volt
- Capacity
- 1250Wh
- Connection terminals
- M8
- Brand
- Mastervolt
- EAN13
- 0816882022944
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Shipping / Delivery
Our products are shipped within 24/48 hours from Monday to Friday (excluding public holidays) for items in stock. Delivery time varies depending on the weight of the package, region and country of delivery and ranges from 2 to 5 days depending on the mode of transport you choose. Furthermore, our packages are insured against breakage, loss or theft from 300 euros.![](/img/cms/generale/bl-livraison-colissimo.png)
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French company
We are located in France in the Pyrénées-Orientales department. Our customer service speaks and writes in French and English. The satisfaction of our customers is our priority.With more than 35 years of experience in the world of boating, we are perfectly competent to help and guide you in all your needs.
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Customer service at your service
Need a specific delivery time on this product? technical information? contact by telephone or online messaging from Monday to Friday from 10:00 a.m. to 12:00 p.m. and from 2:00 p.m. to 5:00 p.m. in French at +33 (0) 4 22 91 22 20 .You can also contact us via our online form outside of the above times.
Product status
Here are the different statuses on the product sheet
new_releases ONLY on order : This item will be produced by the manufacturer when an order is placed. The delay can be from 30 days to 90 days.
Some items have a variable deadline. For information on a delivery date, you can contact us.
Shipping and collection of orders
Here are the transport methods and times available during shipping (delivery time) on Aquanautique.com
![Click & Collect](/img/s/379.jpg)
Collection ONLY from our premises in Perpignan. no shipping!
![Chronopost Express](/img/s/370.jpg)
Next day delivery before 1 p.m. for France, 2 to 4 days for Europe and 3 to 5 days for the rest of the world
![Colissimo Collection points](/img/s/377.jpg)
Home delivery against signature and delivery to the post office, to Pickup relays & Pickup Station lockers in 24 to 48 hours and in France ONLY.
![Mondial Relay](/img/s/373.jpg)
Delivery within 2 to 5 days by relay in France ONLY.
![DB Schenker](/img/s/374.jpg)
Large volume transportation. Delivery 2 to 4 days France and 2 to 7 days Europe.
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We deliver to the following countries
Andorra, Austria, Belgium, Bulgaria, Canada, Cyprus, Croatia, Denmark, Estonia, Vatican City State, Finland, France, Germany, Greece, Guadeloupe, French Guiana, Hungary, Ireland, Iceland, United States, Italy, Reunion, Latvia, Lithuania, Luxembourg, Malta, Martinique, Mauritius, Mayotte, Monaco, Montenegro, Norway, New Caledonia, Netherlands, Poland, French Polynesia, Portugal, Romania, United Kingdom, Saint Barthélemy, Saint Martin, Saint Pierre and Miquelon, Slovakia, Slovenia, Sweden, Switzerland, Czechia, French Southern Territories, Wallis and FutunaSpecialist in marine electricity and IT
Mastervolt stands for autonomous and reliable energy solutions. As specialists in the management, conversion and storage of electrical energy, we offer a complete catalog of products in powers ranging from 300 W to 40 kWatts. Our electrical systems are widely used in demanding industries such as marine, vehicle, offshore, industrial, stand-alone solar and infrastructure.
Mastervolt will allow people to ensure their energy autonomy, regardless of their geographic location. Through innovation and collaboration, we want to play a leading role in the niches of our preferred markets by 2022. Thanks to our specialization in the areas of electricity management, monitoring, conversion and storage, we bring something extra to our customers. The work environment we offer is the best there is for those who share our passion.
Mastervolt is part of the Navico Group and part of the Marine, Mobile & Industrial division with other major brands. Ancor, Attwood , BEP, B&G , Blue Sea Systems, C-MAP , CZone, Garelick, Lenco, Lowrance , Marinco, Mastervolt , Motorguide, Progressive Industries, ProMariner, RELiON, Simrad and Whale have all worked together as independent suppliers of innovative electrical solutions for decades. Together we offer the broadest and most comprehensive range of electrical products for every application imaginable.