Yoshino B4000 SST New Solid-State Portable Power Station

The Yoshino B4000 SST is one of the first consumer-available power stations using solid-state battery technology rather than conventional lithium-ion. This is a meaningful advancement — solid-state batteries offer better thermal stability, faster charge rates, and longer cycle life than standard lithium-ion chemistry. It’s not just a marketing label.

Tech-forward buyers, off-grid enthusiasts, and emergency preparedness-minded homeowners who want the latest and most durable battery technology will find this machine sets a new standard. Conventional lithium-ion batteries use a liquid electrolyte, which is flammable under certain failure conditions. Solid-state batteries use a ceramic or glass electrolyte — non-flammable, more stable at extreme temperatures, and capable of more charge cycles before degradation.

• 4,000Wh capacity — substantial runtime for appliances and devices
• Solid-state battery chemistry — improved safety and significantly longer cycle longevity vs. lithium-ion
• Multiple AC and DC output ports
• Fast charging capability
• Solar input compatible