I bought 5 pcs last week for my new Trex 550 dfc. I tested the batteries over the last weekend. I am very satisfied with these batteries. I find the performance to be as good as (if not better than) those famous and expensive brands which I have. The cheapest 60C 22.2V 5000mAh batteries I ever bought was about $155, and the most expensive was TP (65C) which costs more than $300. I can’t tell the difference in performance between TP and Zolta on my Trex 550.


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