FIELD: manufacture and servicing of storage batteries. SUBSTANCE: case has box 2 closed with cover 1 and divided by partitions 4 into separate compartments. Vertical channel 5 is made in corner formed by partition 4 and wall of box 2 which is used to pour electrolyte; it is adjacent to similar channel of next compartment and does not reach box bottom. Cover 1 is provided with filler hole 6 communicating via channels 72-76 with channels 51 which communicate with case channels 5. Cover has additional electrolyte vessel communicating with channels 81, 8, 9, and with hole 11. EFFECT: enhanced battery charging. 7 cl, 4 dwg
