Lithium-Ion VITOLUX batteries with 80 Ah capacity with built-in Battery Management System (BMS). Especially efficient for applications in solar, photovoltaic and wind independent systems. Their purpose is also to store energy and power UPSs and Inverters for power when there is no main power supply from the mains. As an initial investment, lithium-ion batteries are more expensive than lead-acid batteries. The high initial price, however, is offset by a significantly longer life, superior reliability and very good CPA - more than 92%. They save 70% of the space and 70% of the weight. Lithium-ion accumulators are charged much easier and faster than lead-acid and do not need to be completely diluted before charging. These batteries have built-in cell balancing, temperature control and BTV. Up to 10 accumulators can operate in parallel connection. The accumulators can also be connected in series, depending on the voltage you need: 24V or 48V. Featuring this super compact Battery, you also get an easily portable Electric Bank with which you can charge up to 60 times your mobile phone and charge your Laptop or Table over 40 times. Built-in smart protectors for: - overvoltage of the battery - against recharging the battery - against overheating of the battery - Switch off the load when the cell voltage drops below 2.5V. - Stopping the charge when the cell voltage increases above 4,2V. - Switch off the battery when the temperature of any cell exceeds 50 ° C. SPECIFICATIONS: - Super small size: 348 x 265 x 63 mm. - Battery weight: only 4.5 kg. - Exit to charge the battery with its own charger. - Included in the price and 5Ah fast charger. - USB output for charging of all kinds of electronic devices. - Display of the battery charge level.  *** SELL FOR RETAIL AND WHOLESALE !!!!