ZENDURE V4600. Slick,functional,great value Customer service was responsive to shipping updates. Once arrived boxing was clever,safe and extraordinarily made for us and ease of removal. The v4600 and satellite battery are made well, designed well, and have been charging 2.33kw, and discharging into a heat pump daily. Really cutting down the use of the whole house hvac, while giving security of several to 9 kw in case of down grid. Self moving and tricked out lighting for kicks. Little loud, and no input pv cable so 4.8 out of 5 star, but if in market for a big solar battery, I'd look at zendure for sure.

Great product with excellent warranty Had an original Zendure wall charger which stopped working after about a year. Contacted their service which sent me a new knee at no cost. Also have a newer generation wall charger. Both work great! Charge super fastest multiple phones!

I am at my wits end with this company I am at my wits end with this company. I have been waiting over six months (yep, six months) to get the unit returned as it doesn't work. Jamie J emails constantly to say your return label is being generated - nothing transpires. The unit is next to useless. My fridge and freezer have defrosted twice because the thing either switches itself off after firmware issues or runs out of charge with no warning. The battery capacity is useless. My Jackery has half the so-called capacity but lasts twice as long. In short, I'm happy to be patient when a new company has issues but this company treats customers like mugs and ignores issues.

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

Slow support The original power bank had a defective output. While a replacement was shipped quickly it arrived completely defective. It will not charge. I have made multiple attempts to contact and they still refuse to respond. ** Updated - Support finally reached out and sent a third unit that works fine.