Land Rover Monthly - - Classic Q& A -

Take a look at the bat­tery in­stal­la­tion and ex­te­rior condition as part of the weekly un­der­bon­net check Vis­ual checks This is the eas­i­est check and should be car­ried out reg­u­larly. Ex­am­ine the bat­tery case for cracks or leaks, and con­firm the bat­tery is se­curely mounted to pre­vent it moving around. In­spect the ter­mi­nals for cor­ro­sion, and the se­cu­rity and tight­ness of the bat­tery con­nec­tions.

Clean­ing En­sure the bat­tery case is clean, par­tic­u­larly over the top and around the ter­mi­nals. Keep­ing the case clean will ac­tu­ally re­duce self-dis­charge. Re­move the ter­mi­nal clamps and clean them and the bat­tery ter­mi­nals with a wire brush. All con­tact faces should be clean and bright. If cor­ro­sion is ex­ces­sive, re­move the bat­tery and clean the whole thing with a mix­ture of wa­ter and bak­ing soda.

Clamps and con­nec­tions Check the bat­tery re­mains se­curely held and clamped down so that it will not move around as ve­hi­cle mo­tion takes place. Con­firm the ter­mi­nal con­nec­tions are tight and se­cure and can­not be con­tacted by other metal­lic ob­jects.

Top­ping-up On older lead-acid bat­ter­ies with ac­cess to the in­di­vid­ual cells, you can check that the elec­trolyte level is cor­rect. Do this when the bat­tery is charged and in good work­ing or­der. The elec­trolyte should just cover the cells, but no more. If not, top up the cell us­ing dis­tilled wa­ter only, no acid. Don’t use tap wa­ter as this con­tains im­pu­ri­ties that will da­m­age the bat­tery plates.

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