The Yoshino B330 SST Solar Generator is a 241 Wh portable power station with 330W continuous AC output, sold for camping, road trips, outdoor events and emergencies, and it can be paired with the SP100 solar panel. As of October 28, 2026, the seller’s product page lists the B330 with SP100 kit at a sale price of $299.00, down from a regular $648.00, with Affirm financing “starting at $27/mo or 0% APR.” The seller says unused items bought from its website can be returned for a full refund or exchange within 30 days of receiving the order, and that the unit carries a 5-year limited warranty. The battery figures on this page come from the maker’s own specification sheet, including 4000 cycles to 80% capacity and an AC charge to 80% in about 2 hours. This page covers the specs, what the unit can run, price and financing, refunds and warranty, and the checks to make before you order.
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| What it is | Solid-state portable power station (241 Wh, 330W AC) sold as the B330 with SP100 solar panel kit |
| Who sells it | Yoshino Power, the website of Yoshino Technology, Inc., Southern California |
| Price as shown | $299.00 sale price, $648.00 regular price, for the kit; Affirm from $27/mo or 0% APR |
| Guarantee or returns | Unused items: full refund or exchange within 30 days of receipt (USA); 5-year limited warranty |
| How to contact the seller | Phone 1 (800) 513-2797; [email protected]; 8:00 am to 4:30 pm PST, Monday to Friday |
| Product Page | Where to Buy |
What is the Yoshino B330 SST, and who is it for?
The B330 SST is a battery box with AC outlets, USB and 12V ports, and inputs for wall power, car power and solar. The seller calls it a solid-state portable solar generator. Its product copy says it suits camping trips, outdoor events and emergency situations, and it describes the unit as built for road trips and off-grid charging with optional solar panels.
The seller’s product name is “B330,” not “B3300.”
What does the seller say it does, and how does it work?
The seller says the B330 can be recharged four ways: AC, car, USB-C and solar. It says you can power devices while the unit recharges. The LCD shows the remaining charging time, and the seller says the Yoshino app shows charge levels, runtime and settings on your phone. The product copy also says the unit has a solid-state lithium battery, a fan that turns on to prevent overheating, and an LED light bar.
This is desk research: we have not tested or used the B330, so every figure in this section and the next is the seller’s.
What are the battery, output and charging specs?
| Feature | Seller’s listing |
|---|---|
| Battery capacity | 241 Wh (14.88V, 16.2 Ah) |
| Battery chemistry | Solid-state Li-NCM, as the seller names it |
| AC output | 330W continuous; 500W peak; pure sine wave |
| AC outlets | 2 outlets, 120VAC, 60 Hz, 330W total |
| 12V DC output | 2 ports, 12.6VDC/10A, 126W total |
| USB-C output | 20W max (5VDC/3A, 9VDC/2.22A, 12VDC/1.66A) |
| USB-C PD output | 100W max (5-15VDC/3A, 20VDC/5A) |
| USB-A output | 2 ports, 5VDC/2.4A, 12W each |
| AC input | Charges to 80% in 2 hours (AC), per the product page |
| Solar input | XT60 input 12-30V/5A max, 100W max |
| Car input | 12V/8A, 100W max |
| DC input | 20V/5A, 100W |
| USB-C PD input | 5-20V/3A, 60W max |
| Pass-through charging | Yes |
| Cycle life | 4000 cycles to 80% capacity |
| Size and weight | 10 x 6.1 x 9.6 in (255 x 156 x 242 mm); 9.9 lbs (4.5 kg) |
| Warranty | 5 years |
| Operating temperatures | Discharge 14 to 140°F (-10 to 60°C); charging 32 to 131°F (0 to 55°C); humidity max 90% |
The seller’s pages give two different output ratings. The spec sheet lists 500W peak, and the FAQ refers to a 330W rated and 480W max limit for AC appliances. Use 330W as your planning number and ask support to confirm the peak before you buy for a motor-driven appliance.
How long will it run a fridge, a CPAP or a phone?
A rough runtime is the battery’s watt-hours divided by the device’s watts: 241 Wh ÷ device watts = hours, before losses. The seller’s own worked example takes off 5% for depth of discharge and 10% for inverter efficiency: 241 × 0.95 × 0.9 = 206.06 Wh usable. The seller’s example uses a 60W CPAP, which gives 206.06 ÷ 60 = 3.43 hours. Read your device’s label for its watts, since the numbers below use examples.
| Device (watts) | Raw hours (241 ÷ W) | With seller’s losses (206.06 ÷ W) |
|---|---|---|
| CPAP at 60W (seller’s example) | 4.02 | 3.43 |
| Refrigerator at 150W (example; read your fridge’s label) | 1.61 | 1.37 |
| Device at 100W (example) | 2.41 | 2.06 |
| Phone drawing 10W from a USB port (example) | 24.1 | not given by the seller |
A fridge’s running draw changes through the day, so treat the fridge row as a starting point. For phones, the USB-C port is rated at up to 20W, and the seller’s worked example is written for AC appliances.
How do you recharge it, and how long does solar take?
The seller says AC charging reaches 80% in about 2 hours, and that it takes 3 hours of sunlight to reach 80% capacity with its solar panels. Those are the seller’s figures; sunlight conditions and panel setup will change the result. The solar input takes up to 100W through its XT60 port. The SP100 panel ships separately, and the seller says its panels carry an IP67 rating and ETFE lamination. The product copy does not give the SP100’s wattage, so get that number from support before you buy. For more on solar gear, see solar-powered gadgets.
Can you add batteries, use it as a backup, or control it from an app?
The seller says the B330 has pass-through charging, which means you can run devices while the unit recharges. The seller also says the Yoshino app shows charge level, runtime and settings. For expansion, ask support whether an extra battery works with the B330 before you buy one. If you plan to pair solar and home devices, see smart home devices compatible with renewable energy systems.
What does it cost, and how do financing and shipping work?
The product page shows one kit: the B330 with SP100 Solar Generator, New User Power Starter Kit.
| Item | As the seller shows it | Notes |
|---|---|---|
| B330 with SP100 kit, sale price | $299.00 | Regular price $648.00 |
| Affirm financing | “Starting at $27/mo or 0% APR with Affirm. See if you qualify” | Check the term and total at checkout |
| Shipping | Free standard shipping | Contiguous US only; UPS or FedEx; 5-10 days |
| Sales tax | Calculated at checkout | Refunded with returns |
| Solar panel SP100 | Ships separately | Part of the kit as listed |
The seller says all orders ship within 48 business hours, and orders that include a power station ship by ground only. It does not ship to Hawaii, Alaska, U.S. territories, PO boxes or APO/FPO addresses. The shipping page also says lithium-ion items over 300 Wh are checked by the carrier before release, which can add 48 hours. The B330 is rated 241 Wh. The product page shows “Coming soon” near its purchase area, so confirm at checkout that the kit can be ordered now.
The store menu also lists a Flash Sale, and the seller’s 30-day price match guarantee covers orders on its official store or Amazon store when the same item drops in price on the same platform. It does not cover distributor orders or orders with extra discount codes. Check the price at checkout on the Product Page.
How do refunds, returns and cancellations work?
- Cancel within 24 hours. Buyers who ordered on the seller’s website can request a full refund within 24 hours of placing the order. The seller also says orders cannot be canceled after shipping 30 days or fewer before the request.
- Get a Return Authorization Number first. Email [email protected] with your proof of purchase and ask for a Return Authorization Number (RAN). The seller says no return is accepted without one.
- Return within 30 days. US customers can return unused items for a full refund or exchange within 30 days of receiving the order. Keep all original components in the package and make sure they have not been tampered with.
- Pay return costs. The seller charges return shipping plus a transaction fee on returned US orders: 3% for credit cards, 3.5% for PayPal or Affirm, and 3.3% for Klarna. If you decline a shipment, the seller says the original payment may still be subject to a double shipping fee.
- Wait for the refund. The seller says it will endeavor to process refunds within 14 business days after it receives the returned item, and that sales tax is refunded with the order.
What does the 5-year warranty cover?
The seller offers a 5-year limited warranty to the original consumer of a product bought directly from its website or from an authorized reseller in North America. The warranty starts on delivery or pickup. For a defect, the seller says it will replace or repair the product and reimburse the return shipping, after you get a RAN. Separately, the seller says it grants a one-time free replacement for a quality issue within 30 working days of delivery.
The warranty excludes products used outside the literature provided with them, products with water damage or used in rain or dust or sandstorms, products modified or repaired by anyone other than Yoshino, and products bought from auction sites or unauthorized third-party sellers. The seller says it is responsible for loss or damage only while the product is in its possession, not in transit. Keep the tracking details from delivery in case of a claim.
What are the safety limits, and who should check first?
The seller’s own limits are the ones to follow. It asks you to check that an appliance’s power is within the rated power before you connect it, and it gives these care limits:
| Limit | Seller’s wording |
|---|---|
| AC appliance power | Within 330W rated (480W max, per the FAQ) |
| Storage | 32 to 104°F (0 to 40°C), humidity within 90% |
| Long-term storage | Recharge to at least 80% every 3-6 months |
| Charging | 32 to 131°F (0 to 55°C) |
| Cleaning | Soft dry towel |
The seller’s warranty exclusions also name water damage and bad weather, so keep the unit dry. If a CPAP or other medical device depends on the B330 during an outage, check the runtime with your equipment supplier or clinician before you rely on it. The seller says the unit is for camping, road trips, outdoor events and emergency situations.
Is the Yoshino B330 legit, or is it a scam?
The product is sold on the maker’s own website, Yoshino Power, and the website’s terms name Yoshino Technology, Inc. as the company that owns and operates the site. The product page gives a phone number, a customer support email and operating hours, and the contact page gives a City of Industry, California address. You can check the company’s registration with your state before you order.
What you can check yourself before ordering:
- Call 1 (800) 513-2797 and confirm the kit, the sale price and the current status of “Coming soon.”
- Ask for the warranty and return terms in writing, including the RAN process.
- Ask for the ETL certificate for this model. The product page says the B330 is ETL certified, which is the seller’s statement.
- Check the model name on the box and the order. The product copy’s description names a “K3SP11 Portable Solar Generator,” which differs from the B330 name in the headline.
- Keep your order confirmation, your RAN and the warranty details.
The seller’s terms say disputes go to arbitration in Los Angeles County, California, under California law, and the terms include a class-action waiver. Buyers can opt out of arbitration by mailing written notice to Yoshino Technology, Inc. within 30 days of first purchase. The seller’s warranty page caps liability at actual direct damages, up to the amount paid for the product. Product claims on any seller’s page remain the seller’s to back up, and a separate Cleveland Clinic massage-gun article on non-Cleveland Clinic products or services is a different product category.
Do plug-in energy savers work, and is the power saver device real or fake?
The B330 is a portable battery, not a plug-in energy saver. Plug-in savers are a different category. Gexa Energy, an electricity retailer, publishes a guide to electricity-saving devices for homes that lists power strips, LED bulbs, smart meters, smart routers, programmable thermostats and energy-saving appliances. Gexa says smart power strips can completely cut off power to devices that are not in use, and that programmable thermostats can save close to 25% on energy charges. Gexa sells electricity plans, so read its guide with that in mind.
For a plug-in saver, see ecoserve energy saver review, and for the general question, see energy-saving devices really work.
How does it compare with other Yoshino models and other solar generators?
The seller’s own range puts the B330 at the small end of its lineup. The names and figures below come from the product page menu and the sales images.
| Model | Battery capacity | AC output as listed |
|---|---|---|
| Yoshino B330 | 241 Wh | 330W; 500W peak |
| Yoshino B660 | 602 Wh | 600W AC (sales image) |
| Yoshino B2000 | 1326 Wh | 2000W (menu listing) |
| Yoshino B4000 | 2611 Wh | 4000W (menu listing) |
Check each model’s price on its own product page. For a solar generator from another maker, put the same numbers side by side: watt-hours, continuous watts, outlets, warranty, and the total price with shipping and tax. If you choose not to buy any portable power, you keep the power you have now, and the B330 is for when you need power away from an outlet.
Who should buy it, and who should skip it?
The seller points the B330 at campers, road-trip drivers, people at outdoor events and anyone who wants solar charging for emergencies. It may fit you if your devices together draw under 330W at one time and you need roughly 241 Wh of stored power. Skip it if you need more continuous power than 330W, or if you live in Hawaii, Alaska or a U.S. territory, because the seller does not ship there. Anyone who relies on a CPAP or other medical equipment should confirm runtime with a clinician first.
Before you order
- Confirm the $299.00 kit price and the “Coming soon” status at checkout.
- Check the Affirm term and total if you finance.
- Ask for the SP100 panel’s wattage and the B330’s switchover time.
- Ask for the ETL certificate and confirm the peak output (500W on the spec sheet, 480W max in the FAQ).
- Calculate your own runtimes from your devices’ labels.
- Save the warranty terms, your order confirmation and any RAN.
Quick answers
Is the B3300 SST the same as the B330?
The seller’s product is named B330. If you searched B3300, use the B330 product page to confirm the model before you order.
Does the B330 reduce my electric bill?
The seller describes the B330 for camping, road trips, outdoor events and emergencies. Its product copy does not describe it as a way to lower a power bill.
Can I return it if it does not suit me?
US customers can return unused items for a full refund or exchange within 30 days of receiving the order, after getting a RAN. Return shipping and a transaction fee apply.
Does it come with a solar panel?
The kit lists the SP100 solar panel, which the seller says ships separately.
By InfinitePowerSolutions.com Technology Desk
