Victron Lithium Batteries Smart
Victron Lithium Batteries Smart
- With integrated cell balancing
- Can be connected in parallel and in series
- Bluetooth app available to monitor cell voltage and temperature
Lithium iron phosphate (LiFePO4 or LFP) is the safest of the main lithium-ion battery types. The nominal
voltage of an LFP cell is 3.2 V (lead-acid: 2 V/cell). A 12.8 V LFP battery therefore consists of 4 cells connected in series; and a 25.6 V battery consists of 8 cells connected in series.
Robust
A lead-acid battery will fail prematurely due to sulfation:
• If it operates in the deficit mode for extended periods (if the battery is rarely or never fully
charged).
• If it is stored partially charged, or even worse, fully discharged (in a boat or caravan
during the winter). An LFP battery does not need to be fully charged. Its lifespan is even slightly extended by partially charging the battery instead of fully charging it. This is a major advantage of LFP compared to lead-acid.
Other advantages are a wide operating temperature range, excellent cycle performance, low internal resistance, and high efficiency (see below).
LFP is therefore the choice for demanding applications.
Efficient
Energy efficiency can be of vital importance in various applications (especially in autonomous solar and/or wind energy). The round-trip energy efficiency (discharging from 100% to 0% and charging back to 100%) of the average lead-acid battery is 80%.
The round-trip energy efficiency of an LFP battery is 92%.
The charging process of lead-acid batteries becomes particularly inefficient once the state of charge reaches 80%, resulting in efficiencies of 50% or even less in solar energy systems that require a few days of reserve energy (battery operating with a state of charge from 70% to 100%).
However, an LFP battery still has an efficiency of 90% during light discharges.
Available in 12.8V or 25.6V in various versions.