This feature is not available right now. please try again later.. The cells may explode if you use a solder directly onto the cell, so it's best to ask the vendor/seller if they can add solder tabs for you. generally, your dead battery is the kind of battery that can't charge or supply any power.. Just check the voltage. if its below 12 volt then you have a dead cell. each battery has 6 cell ( 2 volts each cell.).
If any cell shows a specific gravity more than 0.05 less than the others, the cell is dead and the battery will have to be replaced. for example, if five cells read 1.260 and one reads 1.254 (a difference of 0.06) the cell is dead.. To day we will learn how to bring dead sealed lead acid battery to live again this method i tried with alot of dead and expired batteries and 90% of them back to work again p.s : this method may be not bring the battery to full performance of the original condition but at my rate the battery will work for 50%~70% of it. you need : - 3cm syringe - voltmeter or multimeter - battery charger or. The repair of a faulty or weak cell within a battery involves the restoration of the chemical balance. tl;dr (too long; didn't read) if your battery hasn't been permanently damaged by sulfation, restoring a weak cell battery is as easy as monitoring and refilling its acid and electrolyte stores..
