The Growatt Ark Lithium LV Battery System has a modular design. Extra batteries can be stacked on top of each other. The battery inverter system (ARK-2.5L-A1) has a capacity of 2.56kWh and a maximum (dis)charge current of 25A. The nominal voltage is 51,2V and the operating voltage is between 47,2V and 56,8V. The lithium iron phosphate battery (LFP) is free of cobalt, for example resulting in a less costly battery. The battery has a cycle life of over 6000 the perfect solar battery system.
The battery has a protection rating of IP65 and can be attached to a wall as well as placed on the floor. Install on a floor requires a separate pedestal. The battery is 65cm wide, 26cm deep, 18cm high, and weighs 30kgs.
Some advantages of this type of lithium iron phosphate batteries compared to lead-acid and other batteries are a longer cycle life, little to no maintenance, extremely safe, relatively lightweight, and an improved charge and discharge efficiency.
Each ARK 2.5L-A1 consists of 50Ah cells which form a 51.2V voltage battery module and sixteen serial connections (1P16S). Two to ten ARK 2.5L-A1 can be connected in parallel and extend the capacity and power of the energy storage system. The same type of cell and the same software version of the PACK can be used in parallel. Specifically, the Ark Lithium LV Battery System powers the loads through PCS at nighttime without solar; when solar becomes available during daytime, solar energy powers the loads as a priority and store residual solar power into the ARK batter system
Battery Type: Cobalt Free Lithium Iron Phosphate (LFP)
Nominal Voltage: 51.2V
Operating voltage range: 47.2 – 56.8V
IP Protection: IP65
Installation: Wall Mounted or Floor Installation
Operation Temperature: 0-45°C
Flexible capacity options, 2.56kWh to 23.04kWh
Excellent safety cobalt free LiFePO4 battery
Easy installation with modular stacked design
Long lifespan, 10 years warranty.