
Mastervolt Battery Mate 2503 IG load distributor
Product rating by our customers :
Mastervolt Battery Mate 2503 IG load distributor. Charge two or three batteries with high capacity

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-5% for 1100€ of purchases*: SB737MVB
from 150€ of purchases**

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Mastervolt Battery Mate 2503 IG high capacity load balancer..
On-board installations usually include at least two independent batteries that supply equipment with 12 or 24 V. These batteries require independent charging with reliable isolators or battery couplers.
Mastervolt offers several smart solutions:
- Load distributors that divide the load current with minimum energy loss.
- The Charge Mate to connect and/or disconnect two batteries.
- The Battery Watch to monitor the state of your batteries (also usable as a main switch).
The Battery Mate is best suited for charging multiple batteries , possibly with various brands of alternators
Since BI load balancers are conventional diode balancers, the Battery Mate technology incorporates electronics and includes MOSFETS (transistors). These components compensate for voltage drop and ensure charging continues at the correct voltage level, even with multiple battery banks.
The Battery Mate is compatible with all types of charger/alternator, whether for a new system or an existing system. Since voltage loss between the alternator and the battery is negligible, the Battery Mate outperforms conventional splitters. It ensures a fast and complete charge of your batteries without necessary adjustment on the alternator.
The Battery Mate is best suited for charging multiple batteries, possibly with various brands of alternators, even if their charging voltage cannot be adjusted. It can charge two or three batteries with very high efficiency and without voltage loss.
The 1602/1603 models are suitable for alternators with a maximum charge current of 160 amps, Mastervolt's Battery Mate is ideal for alternators with a maximum charge current of 250 amps.
Guaranteed safety: The Battery Mate's LED display indicates whether the power input is active.
Completely corrosion resistant material with aluminum heat sink, electronic components are encapsulated in synthetic materials.
The synthetic plates of the ends contain the terminals; and strong threaded connectors with nuts and lock washers ensure easy installation.
Mastervolt is synonymous with autonomous and reliable energy solutions. As specialists in the management, conversion and storage of electrical energy. Mastervolt electrical systems are widely used in demanding business sectors such as marine, vehicle, offshore, industrial, stand-alone solar and infrastructure.
- Range / Type
- dispatchers
- Dimensions
- 87 x 45 x 35mm
- Weight
- 1kg
- Power
- 200A / 250A
- Brand
- Mastervolt
- EAN13
- 0816882021053
- Product
- Charger accessories

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.




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.

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

Collection ONLY from our premises in Perpignan. no shipping!

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

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.

Delivery within 2 to 5 days by relay in France ONLY.

Large volume transportation. Delivery 2 to 4 days France and 2 to 7 days Europe.

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.
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