To revive the battery, we'll follow the procedure below.
We first test the individual cell voltage with a LiPo cracker. The result will let us know the exact number of cells that are dead.
After ascertaining that the battery can be revived. We'll connect it to the battery multi-charger and LiPo charger to monitor cells.
On the battery multi-charger, we'll set the number of cells, type acid (set as Pb, Lead-acid) and set current as 2A.
We then check the LiPo checker to make sure individual cell volts do not exceed 4.2V (to prevent the risk of fire or damaging cells)
A charge will continue until the desired overall Voltage is achieved.