Yoshino B4000 SST New Solid-State Portable Power Station 2,611Wh, 4,000W Continuous6,000W Peak Solar Optional Generator,UPS Backup Battery
$699.76 USD
Product description
Weighing only 53.6 lbs. and delivering 4,000W AC output and 2,611Wh capacity, the B4000 SST provides truly portable power – ensuring your devices are powered wherever your adventure takes you. This portable power station is both an essential and sustainable battery-powered backup system to meet your needs whether for outdoor, home backup, power tools, or off grid use. This unit includes two fixed 15-watt wireless charging pads, allowing you to charge devices like the iPhone 14 Pro, Samsung Galaxy S22, or any other smart device simultaneously while charging other electronics or power tools. It features optional Wi-Fi and Bluetooth enabled APP control and a bright LED light. The control panel has 10 total ports including AC, DC, RV, USB-A and C ports with 2 wireless charging pads on top for a total of 11 supported connections. Perfect for emergency UPS power backup needs and will power most home devices, including refrigerators. Portable, lightweight, and powerful enough to use during outdoor camping, off-grid, RV, and recreational activities. This portable power station also features Smart Link which allows you to expand the overall capacity so whether you are looking for 10-15k Wh of battery capacity there are no limits with Smart Link. Quiet with zero gas emissions and harmful fumes, the B4000 SST can be recharged quickly using AC power (fast charges from 0-100% within 90 minutes), optional fast solar charging (5.5 hours), and car charging (22 hours)
• NEW SOLID-STATE TECHNOLOGY
Solid-State Technology (SST), is the evolution in lithium batteries which are safer, more compact& lighter than its conventional lithium-ion counterparts. New solid-state battery provides safer & compact power output for off-grid and emergency backup use.
• POWER AND CAPACITY
4,000 watts continuous (6,000 peak watts) power and a capacity of 2,611Wh provides power for devices and most all home appliances. Safety features include over voltage, over current, over charging, over discharging, thermal, and short circuit protection. The SST battery is rated to 2,500 cycles to 80% (7 years of everyday use). Integrated GaN technology allows for more efficient power delivery, and Yoshino’s U.S. based support is here to assist with any service needs.
• EXPANDABLE WITH SMART LINK
Smart Link allows the ability to connect additional 2,611Wh batteries together to increase capacity. There are no limits with Smart link, allowing the ability to match capacity to any application.
• POWER ON THE GO
Whether you are on an adventure, a jobsite, or in the middle of an emergency, this portable power station weighs only 53.6 lbs. and functions as an integrated UPS backup system when all else fails. Charge compatible devices on top of the unit using it’s 2 fixed 15-watt wireless charging pads. Featuring a built-in aluminum carry handle and mobile app for remote access – connecting via Wi-Fi or Bluetooth. Quiet with zero gas emissions and harmful fumes, keeping you connected, always.
• 3 WAYS TO RECHARGE
The B4000 SST can be recharged using AC fast charging (0-100% within 90 minutes), optional solar charging (5.5 hours) and car charging (22 hours).
• SUPPORTS 11 CONNECTIONS
Ports include AC (pure sine wave, 120V x2, 120V/30A RV x1), DC (12V) x2, USB-A x2, USB-Type C (20W) x1, Type C PD (100W) x1, Wireless Charging Pad (15W) x2
Shipping Destination
We currently ship exclusively to the United States (US). Orders placed for delivery outside the US will not be processed.Shipping Costs
We offer Free Shipping on all orders within the United States. There are no hidden fees or minimum order requirements.Delivery Timelines
We work hard to process your order quickly. Our delivery timeline is divided into two stages. We ship Mowtra lawn mowers across the United States.1. Order Processing Time (Handling)
Time: 1–2 Business Days (Monday to Friday) Order Cut-Off Time: 5:00 PM (ET) Orders placed after 5:00 PM (ET) or on weekends/public holidays will be processed on the next business day.2. Shipping Time (Transit)
Time: 4–6 Business Days (Monday to Friday) Carrier: We ship using FedEx to ensure reliable delivery. Total Estimated Delivery Time: 5–8 Business DaysOrder Tracking
Yes, we provide tracking for every order. Once your order has been dispatched (usually within 1–2 business days), you will receive an email confirmation containing your tracking number. You can use this number to monitor your shipment from dispatch to final delivery.Duties and Taxes
For customers in the United States, there are no additional duties or taxes to pay upon delivery. The price you see at checkout is the final price you pay.Lost or Delayed Packages
In the rare event that your package is delayed significantly beyond our estimated delivery time, please contact our support team via email. We will work directly with the carrier to locate your package and resolve the issue as quickly as possible.Contact Us
If you have any questions regarding our Shipping Policy or the status of your order, please contact us.Business Information
- Mowtra
- Monday – Friday
- 9:00 AM – 5:00 PM (ET)
- support@mowtra.shop
- 1067 N High St, Columbus, OH 43201, United States
At Mowtra, we offer lawn mowers designed for routine lawn care and everyday outdoor maintenance. Your satisfaction is important to us. If you are not completely satisfied with your purchase, we provide a clear and transparent return process.
1. Return Window
We offer a 30-day return policy, meaning you have 30 days after receiving your item to request a return. If 30 days have passed since delivery, unfortunately, we cannot offer a refund or exchange.
2. Eligibility for Returns
To qualify for a return, your item must meet the following conditions:
Item must be unused
Returned in original packaging
All tags, accessories, and inserts must be included
Proof of purchase or order confirmation is required
Items returned without meeting these conditions may not be approved.
3. Return Shipping Costs
We are committed to maintaining clear and transparent return policies for our customers.
Defective, Damaged, or Incorrect Items
If your item arrives damaged or defective, please use the prepaid return label included in the package to return the item to us.
Customer Remorse (Change of Mind)
If you wish to return an item due to a change of mind, ordering the wrong size or color, or personal preference, you are responsible for arranging the return label and covering all return shipping costs. Shipping fees are non-refundable.
4. Restocking Fees
We value our customers. Mowtra does NOT charge any restocking fee.
Restocking Fee: $0
5. How to Start a Return
Follow these simple steps:
Step 1 — Contact Us
Email us at support@mowtra.shop with your:
Order Number
Reason for return
Photos (required for damaged items)
Step 2 — Receive Instructions
Our support team will review your request and respond within 24 hours with return instructions.
Step 3 — Ship the Item
Pack the item securely in its original packaging and send it to our return address 1067 N High St, Columbus, OH 43201, United States
6. Refunds
Once your return is received and inspected:
You will be notified of approval status.
Approved refunds will be issued to your Paypal account.
Refund Processing Time
Refunds are typically processed within 7 business days after the returned item has been received, inspected, and approved by our team.
7. Exchanges
The fastest way to receive a different item is:
Return the original item.
Place a new order once the return is approved.
8. Non-Returnable Items
The following items cannot be returned:
Personalized or custom-made products
Final sale items (if marked at purchase)
Need Help?
If you have any questions or need assistance with your return, please contact us at:
Email: support@mowtra.shop

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