Marine Battery SystemsPerformance & Reliability using Lithium & Carbon Foam
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 carbon foam battery system, you can enjoy longer battery life, less maintenance, shorter charging times, longer periods between charging sessions and fuel savings.
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These batteries provide unparalleled resistance to sulfation during partial state of charge (PSOC) operation. This provides shorter charging times & longer battery life at a fraction of the cost of lithium.
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.
Important concepts to understand when upgrading batteries
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.
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.
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 or Firefly carbon foam, 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.
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.
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Other things to think about when upgrading your battery system
Lithium "Drop-in" Replacements
A lithium “drop-in” solution is not a solution. All lithium batteries require special operating parameters and dropping lithium into a system that is not set up for it will result in shorter battery life and in many cases, safety issues.
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.