Routine maintenance of lead acid batteries should include ().
A、keeping the terminals clean
B、coating cable connections with petroleum jelly
C、maintaining a trickle charge
D、All of the above
A、keeping the terminals clean
B、coating cable connections with petroleum jelly
C、maintaining a trickle charge
D、All of the above
A、changing the air filter B、recharging the system C、changing compressor lubricant D、renewing container vacuum