Tenergy Premium Rechargeable C Batteries, High Capacity 5000mAh NiMH C Size Battery, C Cell Battery, 4-Pack

Customers find these rechargeable C batteries to be of good quality, with high capacity and excellent power output. They work well in various devices, with one customer specifically mentioning they perform well in a Sangean rechargeable portable radio. Customers consider them worth the higher cost, noting they save money compared to regular batteries. The battery life receives mixed feedback - while some report good lifetime on a charge, others mention they die after only a few uses.