1.5V rechargeable Li-ion battery is an emerging battery, and there is no unified discharge rate. For this kind of battery, the energy of AA size is generally around 2000mWh-4000mWh, and the energy of AAA size is generally below 2000mWh. According to the testing experience of XTAR lab engineers, it is recommended to discharge AA batteries at 0.5A and AAA batteries at 0.2-0.3A for capacity testing.
When Admiral134 tested four XTAR AA 4150mWh (2500mAh) Li-ion batteries, he also found that 0.5A discharging provided the most accurate test results, closely matching the rated 2500mAh, with capacity fluctuation not exceeding 70mAh.
However, for ordinary users who do not have load machines or a capacity grading machines, there is a lack of household devices on the market for testing the capacity of these batteries. To address this issue, XTAR developed the first VX4 charger that can testing the capacity of 1.5V rechargeable lithium-ion battery. It uses a constant discharge current of 0.3A, effectively protecting battery life and providing accurate capacity testing results.
There are more information about how to choose the right discharge rate for different batteries capacity testing online:
https://www.xtar.cc/news/how-to-choose-the-right-discharge-rate-for-battery-capacity-testing.html
When Admiral134 tested four XTAR AA 4150mWh (2500mAh) Li-ion batteries, he also found that 0.5A discharging provided the most accurate test results, closely matching the rated 2500mAh, with capacity fluctuation not exceeding 70mAh.
However, for ordinary users who do not have load machines or a capacity grading machines, there is a lack of household devices on the market for testing the capacity of these batteries. To address this issue, XTAR developed the first VX4 charger that can testing the capacity of 1.5V rechargeable lithium-ion battery. It uses a constant discharge current of 0.3A, effectively protecting battery life and providing accurate capacity testing results.
There are more information about how to choose the right discharge rate for different batteries capacity testing online:
https://www.xtar.cc/news/how-to-choose-the-right-discharge-rate-for-battery-capacity-testing.html
