Brand: Runshang charging operating temperature: about 25 ℃ at normal temperature Product type: medium rate Product certification: MSDS discharge operating temperature: about 25 ℃ at normal temperature Specification: 502030 cell 250mAh, 502030 add line 250mAh, 502030 add line 250mAh Chemical type: polymer lithium battery protection function: with charge and discharge protection plate Storage temperature: about 25 ℃ at normal temperature