LP 2-Pack Rechargeable 9V Batteries 1100mAh USB-C Lithium-Ion

Customers find these rechargeable batteries excellent in quality, easy to use, and appreciate their charging speed, with one customer noting they can charge two batteries at once. They consider them cost-effective, with one mentioning they save money on replacements. The battery life receives mixed feedback - while some say they last longer than Energizer 9V batteries, others report they only last about two days. The voltage performance is also mixed, with several customers noting they don't generate enough voltage.