Our company wants to buy a lithium battery charging and discharging device, because we don't know much about these devices, so please consult your predecessors.

Your requirements are relatively routine. Maybe the voltage range from 1.5 to 36V is too wide. I don't know if you mean 1.5 to 3.6V. If the upper limit is 36V, I personally think that a single device can't meet the requirements.

Recommended domestic brands are: Blue Power, Qingtian.

Foreign brands are: Maccor, Arbin.

Foreign professional large capacity/power battery test systems: Bitrode (required test) and digatron (Decalon).