Usage and maintenance:

1.batteries should be stored in a clean ,dry ,draught room with 5-40℃Degrees

2.surface of batteries and pole pillar should be kept clean

3.The electrolyte density poured into at first time and the first charging should be done under the instruction .duting the usage ,the urface will reduce,please add some water up to the fomer level(IF the electrolyte out,please add some with same density)

4.when not use the batteries ,take it off from the car ,and recharge it so as to prolong its use life.

5.charge the batteries under the follwing conditions:

1)the density is less than 1.10

2)the light is faint

3)when discharging ,voltage of terminal is lass than 10.8V