What to care when design battery bms?

It should be fully charged when charging, and the accuracy of the termination charging voltage should be protected by ± 1%.
No overcurrent during charging and discharging, and short circuit protection.
It is forbidden to continue discharging when the terminal discharge voltage is reached, and the accuracy of the terminal discharge voltage is about ± 3%.
Pre-charge the deeply discharged battery (below the end-of-discharge voltage) in a trickle mode before charging.
In order to work stably and reliably and prevent the interference of transient voltage changes, there are delay circuits for overcharge, overdischarge, and overcurrent protection inside to prevent malfunction caused by transient faults.
When charging multiple battery packs in series, it is necessary to protect the matching balance of the voltages of each battery, and the matching accuracy is required to be about ±10%.
The battery bms has simple circuit, few peripheral components, and occupies a small space, and can be placed into battery or battery pack.

Company