Super rank replacement I bought a zendure supertank power bank via amazon in Nov 22. I began experiencing issues in Jun 23 and contacted their customer service department directly to enquire if my power bank was still under warranty. Grace Huang took my query and resolved within a week. I received a brand new replacement power bank within two weeks. At this point I would like to say that zendure brand of power bank are extremely durable and reliable. My family have three in total with two being almost 4 years old with no problems. Thanks Grace for your help, much appreciated, Neville.

Scam Returned my new sealed order.. never refunded I paid 172.64 USD .. I requested a return for a refund for my order 7798 for power bank ..as soon as I received the package as it’s under 30 days money back guarantee, after emailing them hundred times they finally answered me with a return address .. I send the item back to Canada address ..It was send by purolator under tracking number 334532883686.. they received the package on 31 January .. after that they never replied .. and no refund has been made!! Scam And by the way the item was new and sealed .. stay away from Zendure .. customer service is big ZERO

Solarflow problems after adding new AB2000 After some starting issues our Solarflow with 2 AB1000 was working properly and we were happy to have them. So we decided to add another AB2000 to the system. Unfortunatly there was an unsolveable software bug as soon as we added the AB2000 to the system and made the update to the AB1000 akkus. After contacting the support via e-mail it took some time till we got an answer. Finally Mrs. Jessica Wen took over our case and we got the needed answers and help very quickly. The system will be replaced and we are looking forward that finally everything will work again as properly as it did before. Thanks to Mrs. Jessica Wen for her great support!

Happy but careful. I'm thankful and pleased that I have received my SBV 4600 + battery about a week ago. I haven't installed it or used it yet, because l'm a little concerned about the firmware updates (and others having problems on which versions). I asked for and quickly received my MCA series cable (female) plugs, but they don't match the XT90 (also female) plugs to my 3 - 1000 watt solar panels (bought separately). So I can't use Solar for now.

these devices are fine until you need… these devices are fine until you need them, they require constant management else they run into a firmware problem and them whatever was plugged into them like a refrigerator is no longer backed up, no warning nothing. unless you can afford to constantly monitor the device, you cannot rely on it to just "be dumb" until the firmware is updated. by time this happens its out of warranty. also currently cannot explain to anyone how it will not charge over the amp demand in ac wall mode. no one would take the time to understand that just plugging it into the 120v ac outlet isn't good enough for it to be a backup battery in ups mode. it still requires a 12vdc source to provide additional charge over the ac demand it may currently need. in short fine for someone who will charge it and use it as a massive cell phone booster battery, no someone who needs it to be an uninterrupted power supply