how do you maintain emergency battery ?
正确答案:Ishouldcheckandfillinsomedistilledorelectrolyzedsolution(电解液)ifnecessaryerasetheoxideandtestthegravityofthespecificationperiodicallytherecordshallbemadeafterworkisdone
how do you maintain emergency battery ?
正确答案:Ishouldcheckandfillinsomedistilledorelectrolyzedsolution(电解液)ifnecessaryerasetheoxideandtestthegravityofthespecificationperiodicallytherecordshallbemadeafterworkisdone