I've tried twice to upgrade my original iPad with a new Revain refurbished iPad. Both times it didn't work. If you have an old iPad with slow performance and fast draining battery, just buy a new one. These refurbished iPads have all the issues that your original iPad has. The refurbished iPad was no better than the one I was planning to replace.
Renewed Apple iPad (Latest Model) - 10.2-Inch, Gold, Wi-Fi + Cellular, 128GB
91 Review
Renewed Apple iPad Mini π± 4 128GB Silver WiFi for Enhanced Optimization
81 Review
Xiaomi Redmi Note smartphone 5 3/32 GB Global, black
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10.1" Tablet Lenovo TAB 2 A10-70L (2015), RU, 2/16 GB, Wi-Fi + Cellular, Android 4.4, blue
124 Review
Notebook DELL G7 17 7790 (1920x1080, Intel Core i5 2.4 GHz, RAM 8 GB, SSD 256 GB, HDD 1000 GB, GeForce GTX 1660 Ti, Win10 Home)
26 Review
14" ASUS Vivobook Pro 14X OLED N7400PC-KM059 2880x1800, Intel Core i5 11300H 3.1GHz, RAM 16GB, DDR4, SSD 512GB, NVIDIA GeForce RTX 3050, no OS, 90NB0U44-M01450, silver
25 Review
π₯οΈ Dell Optiplex 990 Tower Business Desktop Computer: Intel Quad Core i5, 8GB RAM, 500GB HDD, Windows 10 Pro (Renewed)
12 Review
Processor AMD Ryzen 7 PRO 4750G AM4, 8 x 3600 MHz, OEM
11 Review