QUOTE(yhsiau @ Jun 11 2020, 07:27 AM)
I have a Foxsur battery charger with Pulse repair charging function and i have tried on 2 batteries
1. Shorted plate - Cannot be repaired no matter how many days i tried.
2. Weak battery - If its weak better charge it. If there is no sulfate it will cause more damage. Was unknown if there was sulfate inside but I think I killed the weak battery from Pulse charging.
Here is an extract from Battery University
Much has been said about pulse charging of lead acid batteries to reduce sulfation. The results are inconclusive and manufacturers as well as service technicians are divided on the benefit. If sulfation could be measured and the right amount of pulsing applied, then the remedy could be beneficial; however giving a cure without knowing the underlying side effects can be harmful to the battery.https://batteryuniversity.com/learn/article...ad_acid_battery
Here is from Wiki
Lead–acid batteries will experience substantially longer life when a maintenance charger is used to "float charge" the battery. This prevents the battery from ever being below 100% charge, preventing sulfate from forming.https://en.wikipedia.org/wiki/Battery_charger