Page 32 www.enersys.com Publication No. US-RE-IOM-002 January 2012
12.1.3 Heavy Corrosion Cleaning
If the routine cleaning of bolted connections has been neglected, heavy post
corrosion may occur. The performance of the battery under load could be adversely
affected, and this condition could present a safety hazard.
To perform the heavy corrosion cleaning, follow the procedure below:
1. Unbolt and remove connectors.
2. Apply a solution of bicarbonate of soda and water to the cell posts and connectors/cable
lugs to neutralize the corrosion (as described in Section 12.1.2, Procedure 2).
3. Clean the contact surfaces by rubbing the surface of the post or terminal and plated contact
surfaces with a stiff-bristle nonmetallic brush/pad. Exercise care so you do NOT remove
the plating on the connectors, terminal plates or lugs, exposing copper.
4. Recoat the contact surfaces with a thin application of the NO-OX-ID grease, heated to a
liquid form and applied with a small paintbrush.
5. Reinstall and tighten connections to appropriate retorque value (see section 7.4). DO NOT
use any type of oil, solvent, detergent, petroleum-based solvent or ammonia solution
to clean the jars or covers. These materials may cause permanent damage to the
battery jar and cover and will void the warranty.
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