More of DELTA Max
Double runtime with this add-on battery that plugs into any DELTA Max portable power station. Add up to two Extra Battery units for a total capacity of 6048Wh.
DELTA Max and its Extra Battery charge and discharge in unison. Whether you’re recharging DELTA Max from solar panels, AC outlets, a vehicle, or our Smart Generator, the DELTA Max Extra Battery will recharge alongside.
Independent in emergencies
The extra battery even recharges directly from EcoFlow’s Smart Generator without DELTA Max. That’s more recharging options to fit any situation.
Get all the info on battery percent, time until full, time until empty, and more on the DELTA Max Extra Battery LCD screen. Check the battery’s status anywhere on the EcoFlow app.
*Note: This item is only available for sale in the contiguous United States.
Payment & Security
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All orders are shipped free of charge and are not subject to sales tax.
Business days are Monday through Friday. Holidays, Saturday and Sunday are not included in shipping days.
Shipping process: A newly placed order usually takes 48 hours to be processed/shipped and will be delivered to you approximately 1 to 5 business day after an order has shipped, with most packages arriving within 3 business days. For example, an order made on Monday night will be shipped on Wednesday morning and would arrive about 3 business day later.
Our policy lasts 30 days in most case. Some of our brands are offering 60 days, please refer to the product page. If 30 (or 60 in special cases) days have gone by since your purchase, unfortunately, we can’t offer you a refund or exchange.
To be eligible for a 100% refund, your item must be in the same condition that you received it. It must also be in the original packaging.
In the case you used the product and you would like to return it, you will be responsible for the shipping fee and a restocking fee might apply.
In the rare case that a product becomes faulty or a buyer receives a product with defects, buyers are entitled to request for a product replacement within 30 days of receiving the item. To request a replacement, buyers are required to provide photo/video evidence of the product's manufacturing defects via email