I hate to be the bearer of bad news, but, I have one of those TR003 P4 chargers and my experience with it is not good.
Not saying yours won't be just fine. Mine had one dead bay it on it. I didn't realize it until a month or so later because I was only using the first two bays. In addition, the bays that do work always over charge the
batteries slightly to about 4.23 volts.
Probably not a big deal, but could lead to shorter overall battery life.
The
xtar chargers have a good reputation, as well as the Pila chargers. So, if your TR003 doesn't work out, one of those would be my recommendation for your next charger.