Review on 🔋 PKCELL 9V Dry Battery (100 Count) – Ultra Long-Lasting 9 Volt Carbon Zinc Battery: Ideal for Smoke Detectors, 3-Year Shelf Life & Leak-Proof Design by Robert Zander

The durability of these batteries is absolutely terrible. We use these batteries in our wireless microphones at church. Duracell batteries are enough for 2-3 services with rehearsals in between. These batteries only lasted for 2, but for 2 songs. We had to change trains several times on each service. The seller accepted the return BUT I had to pay the postage as we didn't use these bad batteries straight away and didn't find how bad they were. The return cost me over 20€. Don't waste your money on them. There is nothing SUPER or HEAVY about them.