Ernie Ball USB-C Rechargeable AA Battery By Paleblue 4-Pack P09643

Ernie Ball USB-C rechargeable batteries offer high-performance lithium-ion power in 9V and AA formats, designed for musicians and general use. They recharge quickly via USB-C and come with a storage case.

• The description claims these batteries provide constant, full-power output.
• The description claims these batteries have an advanced environmentally friendly lithium-ion design rated for over 1,000 recharge cycles.
• The description claims these batteries deliver the same long-lasting performance as premium alkaline batteries without voltage drop.