Following Guidelines increase the life and performance of lead –acid batteries.
The most important part is the care during initial filling and charging which determines the life & performance and knowledge about how a lead –acid battery works.
Do not use any metallic vessel, only use plastic vessel & protective wears. Never take open flame near . Never connect the cable loosely with the cells/ batteries to avoid sparks & charge of explosion/melting.
If dilute acid prepared from concentrated acid at site, care to be taken. Do not use wooden or any other metal stirrer but to sue plastic /lead wooden oar only to avoid contamination. Compressed air can be used for mixing but care should be taken to trap oil acid to be used.
To follow all laid down safety rules for diluting acid from 1.840-concentrated acid.
The acid to be used after cooling, sp. Gravity corrected to 27.c.
Use ‘acid fill pump’ or siphoning with spring loaded control lever trap, during acid filling to avoid spillage and surface /earth leakage.
Inspect the battery physically:The battery physically for any damages/visible cracks and cleaned prior to filling of acid.
Check the sp. Gravity of acid of all the jerry cans corrected to 27.c prior to filling.
Pour cool dilute battery grade sulphuric acid of 1.220/1.190 sp. Gravity up to the max. level by ‘acid fill pump’ siphoning pipe or with funnel & jug carefully. Do not over fill to avoid spillage.
Polarity check & Rest period Procedure:
Just after acid filling , to check polarity of the cells by checking the voltage of all the cells, if any cell wrongly reverses assembled. The voltage observed is not that important at this point. Also check for any leakage visible after filling.
Allow 12 hours rest for the cooling; allow the plates & separators to soak acid, but not more than 24 hours. Top up again with acid, same as filling –in so. Gravity