PowerOne ACCU Plus Size 13 NiMH rechargeable hearing aid batteries, sold in a 2-pack. These 1.2V nickel metal hydride batteries feature a 28mAh capacity and are designed for hearing aids that accept size 13 rechargeable cells. Each battery measures 7.9mm in diameter and 5.4mm in height, weighing just 0.9 grams.

The batteries utilize PowerOne's patented cathode technology for optimal sound quality and can be recharged over 600 times using a PowerOne Pocket Charger or Pen Charger. A single rechargeable battery replaces up to 57 conventional zinc air batteries over its lifespan, providing significant long-term cost savings. Charging takes approximately 5 hours with a standard charger or 2.5 hours with a quick charger.

These batteries are mercury-free, lead-free, and cadmium-free. They are compatible with most hearing aids that use size 13 batteries, but are not compatible with Oticon hearing aids, ZPower chargers, or hearing aids with built-in batteries that charge by docking. Due to the lower capacity of NiMH chemistry compared to disposable zinc air batteries, a second charged battery may be needed to last through a full day of use. This item is available in-warehouse only at Costco.