All I can say is… those are really cool cells. Nice to see LiFePO4 getting some love.
Really good idea. Luckily, my bank is OCD with security and questionable purchases, and I just don’t have much money to be stolen, my monthly allotment is generally gone to bills within a week of getting paid. I checked to make certain, and AliExpess did not record my card number for future purchases. But it is possible the sellers saw my numbers, but I hope cancelling the orders during the fraud freeze warning I got was sufficient to remove any possible curiosity. If not, my bank sends a new card, cancelling the old one, about once a year.
But that does leave a window for fraud. I have been meaning to set up using virtual card numbers for one time use. It is really just educating myself how to generate them.
Anyway, I won’t do that again. It is PayPal or no purchase.