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This is a 48V sodium-ion battery in a wall-mount all-in-one case, built as a drop-in replacement for lead-acid banks in boats, e-bikes and scooters, forklifts, wheelchairs and small power systems. Sodium-ion chemistry is the draw: it holds up across a -40°C to 70°C operating range and is marketed as a safer, cheaper-to-source alternative to lithium. The trade-off is energy density, so it is bulkier and heavier per watt-hour than a comparable lithium pack. It suits off-grid and cold-climate users and buyers who want to move off lead-acid without lithium's fire and supply concerns.
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Lowest price we've seen: $1,061.00 on Nov 13 at JMBatteries. Tracked across 1 store since Nov 13.
The JM Efficient sodium-ion battery is a rechargeable 48V battery in an all-in-one, wall-mount design. The model listed is JM-W-48V 50Ah, and the product name also references a 100Ah version. The anode material is sodium (Na).
It has a voltage range of 40V to 62.4V and operates from -40°C to 70°C. It communicates over RS485. It can be used in place of lead-acid batteries in boats, electric bicycles and scooters, electric forklifts, electric vehicles, electric wheelchairs and electric power systems.
