Victron Energy LiFePO battery 25,6V/50Ah Lithium SuperPack

Product detailed description

The battery has an integrated BMS and safety disconnector SuperPack batteries are very easy to install and do not require any additional equipment. An internal switch disconnects the battery in case of over-discharge, overcharging or high temperature. This makes it a great replacement for lead-acid battery systems without the need to install additional protection devices. Resistant to incomplete charging Lead acid batteries fail prematurely due to sulphation: - If the battery is discharged for an extended period of time or is rarely fully charged. - If left partially charged or fully discharged. The lithium battery may not be fully charged. Life even improves slightly if partially charged instead of fully charged. This is the main advantage of a lithium-ion battery compared to a lead-acid battery. High efficiency In certain applications (especially islanded systems), energy efficiency can be crucial. The energy efficiency (discharge from 100% to 0% and back to 100% charge) of the average lead acid battery is 80%. The energy efficiency of a lithium-ion battery is 92%. The charging process of lead-acid batteries becomes particularly inefficient when they reach 80% state of charge, resulting in efficiencies of 50% or less in solar systems where several days of energy reserve is required (batteries operating in the 70% to 100% range state of charge). In contrast, a lithium-ion battery will continue to achieve 90% efficiency even under moderate discharge conditions. In addition, compared to lead-acid batteries, they achieve a significantly higher cycling life at a lower weight. Parallel connection option Batteries can be connected in parallel to increase capacity, but cannot be connected in series. Use only in the upright position. Operating temperature of discharge: -10°C to +50°C Charging operating temperature: +5°C to +45°C Storage temperature -40°C to +65°C Recommended charging/discharging setup parameters: Bulk 28.4V Absorption 28.4V (max. 4 hours) Float 27V Storage 27V Load Disconnect Voltage 11V Product information: LiFePO4 batteries are a type of lithium-ion batteries that have many advantages such as high capacity, long life, safety and durability. However, like other lithium-ion batteries, they also have some disadvantages, including reduced performance at low temperatures. At negative temperatures or freezing, several adverse phenomena occur that affect the performance of LiFePO4 batteries. These include: - Slowing of ion diffusion in the electrolyte and electrodes. This reduces the rate of chemical reactions that generate electric current. This means that the battery has lower capacity and performance when discharging and lower efficiency when charging. - Increasing the internal resistance of the battery. This causes a loss of energy in the form of heat and reduces the battery voltage. This limits the maximum current that can be drawn from or supplied to the battery. - Risk of damage to the battery. If the battery is charged at temperatures below 0°C, lithium dendrite formation on the anode may occur. These are sharp crystals of lithium that can puncture the separator between the electrodes and cause a short circuit or fire. It is therefore recommended to charge LiFePO4 batteries only at temperatures above 0 °C. For these reasons, it is advisable to operate LiFePO4 batteries in the temperature range of 0 °C to 60 °C to ensure optimum performance and lifetime. At lower temperatures, the battery must be protected from frost and charged carefully.