A kind of batteries management system and battery pack management method

The invention discloses a kind of batteries management system and battery pack management method, wherein, the major loop that described system includes the battery pack being composed in series by n cell and ohmic load R is formed, in addition to temperature-detecting device, temperature parameter modulate circuit, light coupling relay array, voltage sensor, current sensor, main control chip, at least one relay logical control circuit, the first drive circuit, the second drive circuit, controlling switch and display panel.The present invention detects to the running parameter of each cell of battery pack; and estimate the residual capacity SOC indexs and SOH health indicators of each cell; and when the running parameter exception of each cell; then it is adjusted protection; avoid the occurrence of " the bucket effect " of single cell; influence the normal work of whole battery pack, and the whole battery pack of damage.