Pathetic product

Purchased 3 Tevo magnito rechargeable lights. Within a couple of months the 1st one battary packet up and was sent in for repairs. Just booked in the second light with the same problem last week, but they want R 130 to repair it. Last night during a 7hr black out the 3rd one packet up. Really not a good product extremely disappointed in this product. That's R750 down the drain, ridiculous