ALLPOWERSR4000 3456Wh LiFePO4 Portable Power Station, Huge 4000W AC Output Portable Home Battery, 0-100% in 1.2 Hours, UPS Solar Generator For Home Backup, Travel, Outdoor Camping

This is the best solar power station you can buy.for the price.it will run anything you want microwave air fryer etc.its that good I bought another one.a bit heavy but it has wheels.very well ɓuilt

I used the R4000 and it works fine, however I had incosistences on what what displayed on the screen with what was displayed in the APP, from time to time, I found that to be intermittent. I had some unexplained things happened, that I cannot always replicate. For example, I wanted to test DC changing and AC charging. I had a Xiaomi phone on a USB C - USB C cable and another one on a USB A-USB C cable. I was plugging them in directly to the USB C and USB A ports and the load was showing on the display. If I was unplugging them and plugging them to a 220V charger that I then plugged to the AC plug of the solar generator / battery, then the phone connected via the USB A - USB C cable was not registering as charging. Another issue I had was inconsistency on readings between the values I had in the App and the values shown in front of the panel. I had load both on AC annd DC circuits, I could see the display registering the loads, however the APP was registering the DC load only, not the AC. I de-installed and rwe-installed the APP n the phone, it made no difference. That was the case for few hours, then the APP fixed itsef . Then again I tested and the charging registering only for DC , not AC. I left it, I reset everthing, then everything was working fine. It maybe me but I felt that I had incossistent results between the display and the APP. Except that, it seeemed to be working fine. The extendable hande is a very good design feature too. I will return the solar generator / battery as I had incossistent display figures with it. I also bought a 600W flexible solar panel, that was charging the R4000 fine. I will return the solar generator / battery and I weill keep the 600W flefible solar panels. They seem to be working great. Also, when going through the menus, I found that the battery has BMS, its funcionality and specs ae not in the advert, or I could not fing any more details on i. BMS = Battery Management System ,for managing charging and protecting the battery.