
A sulfated battery is the most common malady of a dead battery, but as long as an used lead acid battery is mechanically sound, a sulfated battery can be revived.. Then i though battery was fault and i was right, this 4.0v 2.0ah rechargeable sealed lead acid battery even not charged with a power pack(i tried adjusting voltage from 3v to 6v even 12v, even not charged).. How to revive a sealed lead acid battery what stores sell 12v lead acid battery lead acid battery tests deep cycle battery brisbane mobility scooter batteries...