Yoshino B4000 SST Solid-State Portable Power Station, 2611Wh Capacity, 4000W Output

The Yoshino B4000 SST represents a fundamental technology advance in portable power storage — it’s one of the first consumer-available portable power stations to use Solid-State Battery (SST) chemistry instead of traditional liquid-electrolyte lithium-ion or LiFePO4. Removing the liquid electrolyte eliminates the risk of leakage, fire, and thermal runaway that makes conventional lithium batteries a safety concern in enclosed spaces and extreme conditions, while delivering serious continuous power for home backup and heavy-duty jobsite use.

Key Features

• Solid-State Li-NCM battery chemistry removes the liquid electrolyte, improving safety against leakage and thermal runaway
• 2,611Wh capacity with 4,000W continuous / 6,000W peak pure sine wave AC output
• Rated for 4,000 charge cycles to 80% capacity, backed by a 5-year warranty
• Fast AC charging reaches 80% in about 70 minutes
• 600W max solar input for renewable off-grid recharging
• Three AC outlets including a 30A TT-30R for RV use, plus car and solar charging inputs