Promier® Platinum AA Rechargeable Ni-Mh Battery 4 Pack

These are 4 AA Ni-Mh rechargeable batteries with 1350 mAh capacity, designed for multi-purpose use.

• The description warns against opening the battery, putting it in backwards, mixing with other batteries, or short-circuiting it, as this may cause ignition, explosion, leakage, or overheating.
• The description recommends pre-charging batteries before use for optimal performance.