Review on 🔋 8PCS NiMH 1.2V AAA 600mAh Rechargeable Batteries – Ideal for Solar Lights, Garden Light, String Lights, Wireless Mouses, Flashlight - Dynpower Pre-Charged Triple A High Performance, Wide Temperature Range by Quas Santiago

They didn't work in standard Panasonic cordless phones until I cut the plastic off the negative end. I used a single bladed razor to clean the perimeter of the battery base. They were then able to contact the telephone terminal and then continue to work normally. The plastic covering the battery compartment not only encloses the sides but extends to the bottom of the battery. The charger also had no contact. Other than that, their specs and performance are decent. I gave them one star instead of stars because they had the lowest price. I didn't send them back because I needed them immediately.