PerryJack, can you please ask your friend
which Chinese supplier he used? Was it KingKong, Yabo/BrandBattery, or someone else?
Based on the price, it sounds like he got KingKong batteries (the blue ones
here).
We already know that the KingKong batteries are not suitable for HEV use, and we already know that the BumbleBee batteries are fine.
The question is, what about the Yabo batteries? It certainly appears that they must at least be much better than the KingKong batteries! The question (& argument) is whether they're comparable in quality to the BumbleBee batteries.