Victron Lithium Smart 12.8V 100Ah Battery

Product Code : BAT512110510

$1,698.00 $1910.00
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Victron Energy LiFePO4 Smart 12.8V 100Ah 

 Victron Lithium Batteries

Why Lithium-iron-phosphate?

Lithium-iron-phosphate (LiFePO4 or LFP) is the safest of the mainstream li-ion battery types. The nominal voltage of an LFP cell is 3.2V(lead-acid: 2V/cell). A 12.8V LFP battery, therefore, consists of 4 cells connected in series; and a 25.6V battery consists of 8 cells connected in series. 

Rugged

A lead-acid battery will fail prematurely due to sulphation:

• 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 (yacht or mobile home during wintertime).

An LFP 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 LFP compared with lead-acid. Other advantages are the wide operating temperature range, excellent cycling performance, low internal resistance and high efficiency. LFP is, therefore, the chemistry of choice for very demanding applications.

Efficient 

In several applications (especially off-grid solar and/or wind), 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 an LFP 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 is required (battery operating in 70% to 100% charged state). In contrast, an LFP battery will still achieve 90% efficiency under shallow discharge conditions. 

Size And Weight

Saves up to 70% in space and weight.

Expensive?

LFP batteries are expensive when compared to lead-acid. But in demanding applications, the high initial cost will be more than compensated by longer service life, superior reliability, and excellent efficiency. 

Bluetooth

With Bluetooth cell voltages, temperature and alarm status can be monitored. Very useful to localize a (potential) problem, such as cell imbalance. The LFP batteries have integrated cell balancing and cell monitoring. Up to 5 batteries can be paralleled, and up to four batteries can be series connected so that a 48V battery bank of up to 1500Ah can be assembled. The cell balancing/monitoring cables can be daisy-chained and must be connected to a Battery Management System (BMS). 

Battery Management System (BMS)

The BMS will:

1. Disconnect or shut down the load whenever the voltage of a battery cell decreases to less than 2.5V.

2. Stop the charging process whenever the voltage of a battery cell increases to more than 4.2V.

3. Shut down the system whenever the temperature of a cell exceeds 50°C. 

 


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