Do Cheap AGM / Sealed Lead-Acid Batteries Last?

Many people have asked if cheap AGM / Sealed batteries last a long time. To address that question, I have 3 batteries that I have owned for years, and they have been in regular use. Here are some links to my videos where I used each battery: Video with 18 AH battery:    • Overnight Off-Grid Power Project   Video with 35 AH Battery:    • Review Everstart 400 Watt Inverter   Video with 100 Ah Battery:    • DIY solar mobile power station. Save money...   Also, here are links where you can purchase your own AGM / Sealed Lead-Acid Battery: Link to 12V, 100 Ah Universal Sealed Lead Acid Battery https://amzn.to/3Uqsv9G Link to 12V 18 Ah Sealed Lead Acid Battery: https://amzn.to/3zMuxt1 Link to 12V, 35 Ah Thunderbolt Sealed Lead Acid Battery https://www.harborfreight.com/12v-35-...