The Yoshino B4000 is a solid-state portable power station featuring a 2611Wh Li-NCM solid-state battery with 4000W rated output and 4000W surge capacity. It uses a GaN bidirectional inverter achieving 96% conversion efficiency and supports ultra-fast AC charging at up to 1800W, reaching 80% charge in 90 minutes. The unit operates across an extended temperature range of -0.4°F to 140°F and includes UPS functionality with a 20ms switch time. It offers multiple output options including two 120V AC outlets (20A each), a TT-30R outlet (30A), USB-C PD (100W max), USB-A (2 ports), 12V DC outputs, wireless charging pads, and a 48V DC output adaptor. It supports solar input up to 600W within 12–60VDC range, car charging up to 120W, and pass-through charging. The device weighs 24.3 kg and measures 543 x 260 x 240 mm.
Yoshino
Yoshino B4000 Solid-State
Capacity
2611 Wh
Rated Output
4000 W
Battery Type
Solid-State Li-NCM
Weight
24.3 kg
AC Input
1800 W
Solar Input
600 W
UPS
Yes
Overview
Full Specifications
| Capacity | 2611 Wh |
|---|---|
| Rated Output | 4000 W |
| Surge Output | 4000 W |
| Battery Type | Solid-State Li-NCM |
| Battery Cycles | 4000 |
| AC Input | 1800 W |
| AC Recharge Time | 90 min |
| Solar Input | 600 W |
| Solar Voltage Range | 12-60V |
| UPS | Yes |
| UPS Switch Time | 20 ms |
| Pass-through | Yes |
| App Control | Yes |
| Expandable Battery | Yes |
| Weight | 24.3 kg |
| Dimensions | 543 x 260 x 240 mm |
| AC Outlets | 2 |
| USB-A | 2 |
| USB-C | 1 |
| USB-C Max | 100 W |
| Car Port | 1 |
| Car Input | 120 W |
| Car Charging | Yes |
| Inverter Type | GaN Bidirectional |