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This is a 48V 100Ah (4.8 kWh) rechargeable sodium-ion battery built for off-grid solar storage. Sodium-ion cells are the standout: they hold up better than lithium in cold and are less prone to thermal runaway, and sodium is abundant, so the chemistry is positioned as a cheaper, safer alternative to lithium iron phosphate. The trade-off is lower energy density, so it is heavier and bulkier than an LFP pack of the same capacity. It suits off-grid cabins, backup power and small solar arrays where weight matters less than durability and a long service life; the 10-year warranty is long for this class.
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This is a 48V 100Ah sodium-ion battery with 4.8 kWh of capacity, model JM-W-48V100AH. It is a rechargeable battery for off-grid solar systems and can be used in place of a lead-acid battery.
It has a built-in BMS rated for 100A charge current and 150A discharge current. It communicates over RS485, and a customized protocol is available. The charge voltage is 58.4V and the discharge voltage is 44.8V.
The battery is listed for use in boats, electric bicycles and scooters, electric forklifts, electric vehicles, electric wheelchairs, golf carts, RVs, camping, UPS and electric power systems.
