The Victron Energy 12,8V & 25,6V Lithium SuperPack batteries are extremely easy to install, not needing any additional components
Lithium-iron-phosphate (LiFePO4 or LFP) is the safest of the mainstream li-ion battery types. The nominal voltage of a LFP cell is 3,2V (lead-acid: 2V / cell). A 12,8V LFP battery therefore consists of 4 cells connected in series; and a 25,6 V battery consists of 8 cells connected in series
Integrated BMS and safety switch
The internal switch will disconnect the battery in case of over discharge, over charge or high temperature.
A lead-acid battery will fail prematurely due to sulfation:
• If it operates in deficit mode during long periods of time (i.e. if the battery is rarely, or never at all, fully charged).
• If it is left partially charged or worse, fully discharged.
A Lithium-Ion battery does not need to be fully charged. Service life even slightly improves in case of partial charge instead of a full charge. This
is a major advantage of Li-ion compared to lead-acid.
The Victron Energy 12,8V & 25,6V Lithium SuperPack batteries will cut-off the charge or discharge current when the maximum ratings are exceeded.
In several applications (especially off-grid solar), energy efficiency can be of crucial importance.
The round-trip energy efficiency (discharge from 100% to 0% and back to 100% charged) of the average lead-acid battery is 80%.
The round-trip energy efficiency of a Li-ion battery is 92%.
The charge process of lead-acid batteries becomes particularly inefficient when the 80% state of charge has been reached, resulting in
efficiencies of 50% or even less in solar systems where several days of reserve energy are required (battery operating in 70% to 100% charged
In contrast, a Li-ion battery will still achieve 90% efficiency even under shallow discharge conditions.
Can be connected in parallel
The Victron Energy 12.8V & 25.6V Lithium SuperPack batteries can be connected in parallel. Series connection is not allowed.Use in upright position only