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The EcoFlow RIVER 3 Plus Smart Extra Battery EB300.

Designed as the perfect companion for the EcoFlow RIVER 3 Plus, the EcoFlow RIVER 3 Plus Smart Extra Battery EB300 brings unmatched flexibility and power expansion, adding an additional 286Wh of battery capacity. Whether you’re venturing off-grid or preparing for emergencies, the EcoFlow EB300 extends your RIVER 3 Plus to a robust 572Wh, ensuring a reliable energy supply when you need it most.

High-Efficiency Output and Recharge Options

Equipped with a 140W USB-C output, the EB300 isn’t

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Designed as the perfect companion for the EcoFlow RIVER 3 Plus, the EcoFlow RIVER 3 Plus Smart Extra Battery EB300 brings unmatched flexibility and power expansion, adding an additional 286Wh of battery capacity. Whether you’re venturing off-grid or preparing for emergencies, the EcoFlow EB300 extends your RIVER 3 Plus to a robust 572Wh, ensuring a reliable energy supply when you need it most.

High-Efficiency Output and Recharge Options

Equipped with a 140W USB-C output, the EB300 isn’t just about capacity; it’s about capability. Delivering high-power output that’s perfect for charging demanding devices like laptops and cameras, the EB300 also supports rapid recharging from 0 to 100% in just 3.5 hours via USB-C, allowing you to quickly replenish power and stay prepared.

Durable and Long-Lasting LFP Battery Chemistry

Built with LFP (LiFePO4) battery chemistry, the EcoFlow EB300 offers reliable performance over time with 3000 cycles to 80% capacity—that’s over 11 years of daily use. The robust LFP cells are ideal for those looking for a long-term energy solution, and they guarantee a stable, high-quality power source you can count on.

Quick and Convenient Connection with Pogo Pin Technology

Expanding your power system is seamless with EcoFlow’s Pogo Pin technology. The EcoFlow EB300 battery connects wirelessly and securely using fasten-and-clip technology, eliminating the need for cumbersome cables or screws. Whether adding it to your EcoFlow RIVER 3 Plus or using it as a standalone power bank, this extra battery keeps setup simple and effective.

Standalone Power and Portability

The EB300’s 140W USB-C charging and recharging port allows it to function independently, making it a versatile solution for powering devices on the go. Compact, easy to transport, and backed by a 5-year warranty, the EcoFlow RIVER 3 Plus Smart Extra Battery EB300 is the ideal power expansion solution for anyone who needs more energy without compromise.

What’s In the Box?

RIVER 3 Plus Smart Extra Battery EB300 (286Wh), Quick Start Guide and warranty

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Extra Battery B300:

  • Battery capacity in Wh 286 / 89600mAh
  • Battery type LFP lithium iron phosphate (LiFePO 4)
  • Battery Cycle Life 3000 cycles to 80% capacity
  • Waterproof No
  • Overcharge protection Yes

USB-C Output:

  • 1 x 5V/9V/12V/15V⎓3A Max, 20V/28V⎓5A Max, 140W Max

USB-C Recahrge:

  • 0-100% in 3.5 hr

EB Interface:

  • 17.5-25.5V⎓14A Max

Dimensional Data:

  • Length (L) cm 23.4
  • Width (W) cm 22.4
  • Height (H) cm 11
  • Weight Kg 3.3

Delivery

When will I receive my order?

In most cases, a product on our website will give you an indication of the current stock availability, but shipping is not uniform for all products. We maintain fantastic relationships with all of our suppliers and we aim to get products to customers within 3 business days of the order being taken. This ava

...

When will I receive my order?

In most cases, a product on our website will give you an indication of the current stock availability, but shipping is not uniform for all products. We maintain fantastic relationships with all of our suppliers and we aim to get products to customers within 3 business days of the order being taken. This availability is based on information from our suppliers and from sales and supply patterns. The availability information given is a guide only and not a guarantee as there are external factors that we may not have control over.

Coronavirus Update – UK couriers and transport companies will not currently guarantee delivery times and we are seeing a slight delay in deliveries – please bear this in mind when ordering.

Specialist Couriers – Some items such as the larger portable power stations are sent by specialist courier as standard couriers will not accept them. These specialist couriers are very reliable but sometimes don’t have tracking or timed delivery.

Split deliveries – We sometimes need to send orders for more than one item by different courier networks (portable power stations for example) – so you may receive items at different times.

1500rpm machines or larger diesel gensets however are typically priced on application and all depend on the destination. We will be happy to quote on any large diesel generator and discuss your needs over the phone or via email.

Most orders placed before 12pm on a business day will be shipped from our suppliers on the same day provided the product is in stock. If you need to be certain an item is in stock and available, or if you need a lead time, it’s worth calling our sales team on 01329 722390. Pricing for extended shipping areas like Northern Ireland, the Scottish Highlands and outlying Islands, Outer Hebrides, Channel Islands, Isle of Man, Scilly Isles, and other postcodes not considered as UK mainland can be obtained also by calling our offices.

Please note that the processing of a payment and acknowledgement email does not constitute a legally binding contact. In the case of mispricing, changes in stock quantity, or if we believe the machine will be misused, we reserve the right to cancel the order and provide a full refund.

Heavy Items

You will be contacted by phone after ordering a larger item to confirm a delivery date before your order is dispatched. Large or heavy items are dispatched through a pallet network, so if we can’t get in contact with you, we may be unable to send out your item on a next day delivery. Please be sure to include a working phone number with your order.

Heavy items will require the recipient to make arrangements to take delivery of the goods and may require the recipient to help the courier unload the item. For items that are delivered on a pallet the courier will leave the pallet as close to your door as possible.

1500rpm diesel generators will require forklift (or similar) offloading; if this is not available then we can arrange a Hiab offload at an additional price – please call us to discuss any delivery requirements.

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Have any questions on the EcoFlow RIVER 3 Plus Smart Extra Battery EB300?

Get in touch with us today and we'll be happy to answer any questions you have.

  • CALL US

    01329 722390

  • EMAIL

    info@hampshiregenerators.co.uk

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