EF ECOFLOW DELTA 2 Max Power Station Extra Battery, 2048Wh LiFePO4 (LFP) Battery, Compatible with DELTA 2&DELTA Max 2000&DELTA 2 Max Outdoor Generators

This EcoFlow 2Max Extra Battery was delivered today and I am very pleased to say it so far functions very good and nothing was broken or damaged during the shipping and delivery process as before in a previous same purchase. I can confirm that the operation and functionality is exactly as described in the advertisement for this product and additional 2048 Watts to my solar generator system will definitely cover my electricity needs during this upcoming summer months and fire season when the main power supply grid is shutdown for public safety. I would recommend these devices be purchased for your homes in case of any future power outages because they are very efficient and and very easy to use and will save you money and discomfort during the upcoming months. Long story short, the EcoFlow company works with customers to help purchase their products by offering different types of payment plans that are compatible with many budgets so anyone can afford to pay for a important product that will help them during power outages that occur very frequently nowadays. Thank you (I’m pretty sure I will purchase one more extra battery so I can run my air conditioner when the heat is causing the power grid to be shut down and instead I will be enjoying my regular life without disruption and sweating in the heat waiting for the power company to turn back on the grid power supply to every house )

Very nice just plugged it into my Deta 2 Max working seamlessly doubled my battery capacity.

Love it works better then I thought

Prices finally reasonable when on a Black Friday sale. Perfect expansion for a great power station. Working flawless as expected

I bought the additional battery to go with my Delta 2 Max and four solar panels. Setting up is very straight forward and the connect cable is easy to use. The Delta 2 Max instantly recognizes the battery and it even shows on the Eco Flow app. I connected both to my solar panels and charged them to 100% as I was curious to see how they would balance out as the new battery arrived at 60% charge and my Delta 2 Max was at 75%. Charging was quick from my solar panels as the Delta 2 Max shunted much of the power to the extra battery until they were both at the same charge level and then the load evened out. I bought the extra battery on sale and think it’s a great addition as now I can generate and store 4 KW hours of power. My plan is to add a second smart battery so as to max out at 6 KW hours. The smart battery weighs almost 10 pounds less than the Delta 2 Max and is easy to move around. It’s size allows for easy storage in a on top of the D2 Max.

Update: now charging at 296 W. Much better.. originally charged it only 65 W so I contacted Eco flow. They claimed they would do an online update but after four weeks I had not seen it. Now some six months after giving up I plugged it in again to find it is now charging better. Perhaps the software update was done online. Still may take six hours to fully charge, but that’s much better than the 65 W charging speed it had before. Up to four stars on this review OLD REVIEW:Will only charge at 65 W… hooked up to my plugged in Eco flow Delta two unit. This unit charges at only 65 W taking over 24 hours to recharge with the combined unit plugged into a wall outlet. I contacted Eco flow and they said they would send a “firmware update” to the unit as it’s registered in the phone app. Well that’s been 2 1/2 weeks and nothing has happened. Until this is resolved, this is going to be a lousy unit too late to return it now I just plugged it in last week. Will probably discharge and add capacity but recharging this is ridiculously slow

Freak storms and power outages seem to be the norm these days. A year ago, I purchased the Delta 2 Max and added a battery to provide emergency power in the event of a blackout. I just added a second battery to ensure uninterrupted power. Ecoflow products are user friendly and very reliable. I power these with 2 400 watt solar panels and these have maintained a steady supply of power. I cannot say enough about the peace of mind that the Ecoflow system has brought to my household.

I wanted another battery for my existing Delta Max 2000. It is an older design using an NCM battery rather than the better LFP in this extra battery. Did some research and it looked like this battery would work with my older Delta Max 2000. Plugged it in and also my solar panels and the new battery appeared in the EcoFlow app showing 30% charge and everything worked great. Had about 700 watts coming in the solar input and the new battery charged to 100% in just over 2 hours.