Thanks to the characteristic of lithium-ion, the Fuvaly rechargeable AA/ AAA batteries deliver a longer lifespan, and integrated microUSB port allows for easy charging.
The lithium-ion battery is available in two standard sizes: AA and AAA. The rechargeable AA battery features 1500mAh battery capacity, while the AAA battery has 450mAh capacity. With constant 1.5V output, both batteries work more stable, and unlike NiMH, lithium-ion has no voltage depression effect as time passes. The ultra-low self-power consumption ensures it features about 1-year standby time.
The lithium-ion AA/ AAA battery comes equipped with an integrated microUSB port. Using an included 4-in-1 charging cable, you can charge up to four batteries at the same time. The built-in LED indicator turns red from green when the battery has been fully recharged. Moreover, the batteries can be recharged over 1000 times, and there are no Mercury, Cadmium and Lead in these batteries.
The USB rechargeable AA lithium-ion battery 4-pack is priced at $25.99 USD ($24.99 for the AAA battery 4 pack). If you’re interested, jump to the product page (AAA batery pack) for its more details.