A geuine Hytera product, the BL2001 7.4V 2000mAh Li-Ion battery. Higher capacity than the battery originally received giving you much longer talk time between charges. A lower capacity version is also available, the same that came with your radio originally - see product BL1204.
Suitable for the HYT TC-610 and TC-620 models. Also suitable for Power446 license free model.
This battery should be charged using the HYT original charger CH10A03.
This battery chemistry is Lithium Ion. As such it does not suffer from memory effect like older Nickel chemistry batteries, and requires no maintenance. It does however have a safety cut-off if left to discharge past a certain point, which will render the battery useless. If you are considering purchasing this battery as a spare, ensure you charge it fully upon receipt and charge again every 2-3 months if not in use. If using the battery constantly, please be aware that although this chemistry does not require maintenance for best performance, it does only have a life span of around 300 charge cycles. Therefore if you are charging it everyday it will likely only last a year.