Marine Battery Systems

Performance & Reliability using Lithium & advanced lead technologies


Batteries are the backbone of any mobile energy system, so choosing the right product is paramount

OceanPlanet Energy offers only the highest quality, highest performance & most reliable energy systems.  With an upgraded lithium or lead battery system, you can enjoy longer battery life, less maintenance, shorter charging times, longer periods between charging sessions and fuel savings.


Quick links to products we offer

Lithionics Lithium Battery Systems with OPE-Li3 Dual Channel External BMS's

These systems are recommended for anyone who wants the absolute highest performance and reliability.


Lithionics lithium batteries with internal BMS's

These systems are recommended for electric propulsion, thruster/windlass batteries or small house banks where the full protection of the external dual channel BMS is not needed.


Victron Super Cycle AGM batteries

The AGM Super Cycle batteries are the result of recent battery electrochemistry developments.  These lead batteries perform extremely well for deep discharge applications. Contact us for more info on these and all Victron battery options.


Important concepts to understand when upgrading batteries

Battery Capacity

Battery capacity will be defined as Amp hours (Ah) at a certain Voltage (V) or Watthours (Wh).  The battery capacity should be matched to the daily energy usage with a 20%-40% buffer to increase battery life expectancy.

Battery Voltage

Most recreational boats have operated at a system voltage of 12V in years past but more and more boats are moving to 24V & even 48V with higher loads and faster charging capabilities.  Operating at a higher voltage reduces current & voltage drop.  This will reduces cable size resulting in weight & cost savings.

Charging Algorithm

All batteries have a recommended charging algorithm.  For lithium and carbon foam, adhering to these recommended charging parameters is important for safety & battery lifespan.  When considering an upgrade to lithium, it is important to make sure that all chargers are programmable to the recommended charging parameters.

Lithium Battery Chemistry

There are many different types of lithium batteries on the market.  Each one has a different set of attributes related to stability (safety), energy density, & cost.  Lithionics uses exclusively lithium iron phosphate which are known as having a very good balance between energy density and safety.  This is a different and safer chemistry than the batteries that caused many of the boat fires that have been publicized.

Carbon Foam

Absorbed Glass Matt (AGM), flooded, gel & carbon foam or otherwise carbon “enhanced” batteries are all lead-acid batteries. They all share the most basic characteristics of lead batteries.  Carbon foam batteries are set apart from other lead-acid batteries because the presence of carbon blocks the battery from experiencing permanent sulfation during partial state of charge operation.

Curious how much power you use?

Other things to think about when upgrading your battery system


Upgrade your charging capabilities

A high output (HO) alternator  can greatly increase your charging capabilities and improve your system’s performance.  Read our FAQ’s about HO Alternators and lithium batteries for more information


When installing batteries, it is important to ensure that all the batteries in the bank are loaded equally during charging and discharging.  This means that cables of equal gauge and length should be used when connecting the batteries in parallel and to the system positive & negative buses.


Monitoring the state of charge (SOC), the charge rate, the discharge rate & the V of the battery bank is necessary in order to maintain the health of the battery bank.  There is a wide variety of products available depending on the features desired. More Info

Ready to design or purchase your system?