These are reconditioned 10ah (10000mah) 3.2v lifepo4 reconditioned (used) battery cells. They are very small yet powerful. You can use these cells to make small IPS UPS, small solar systems, and AC/DC solar fan lights. With a long life and higher capacity, you can easily use them for 2 to 4 years, and the backup time is also much higher. You will only get these at retail rates; I do not have stock for wholesale right now. There are only 300 pieces available, which will be sold at retail.