[SOLVED] doubt about the lead acid battery charging procedure.

[vignesh ssvv]

hi,
I just want to know whether applying the charging voltage continuously to the battery will cause any damage to the battery.

 

[chuckey]

To much voltage causes too much charging current, causes too much heat, causes electrolyte to boil off. For long term charging use 13.8 V on a trickle charge, this will not hurt the battery.
Frank

 

[tpetar]

Lead Acid start to boiling on 14,2V at 25-27C.

 

[D.A.(Tony)Stewart]

Just for clarity, although there is power dissipation from the current thru the ESR of the battery, the "boiling" that commonly occurs in lead-acid batteries is due to electrolysis, not heat.

However batteries under high drain and charge cycles may experience high temperatures and causing thermal boiling.

If excess boiling lowers the electrolyte level, it needs maintenance.

Some battery basics