Battery check Mazda RX-8 2003 - 2009 | Haynes Manuals
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Locate the battery
Open the battery cover
Check the Negative (-) terminal clamp is tight
Check the Positive (+) terminal clamp is tight. CAUTION If using a spanner to tighten terminal, be careful not to short it on the bodywork
Check the battery is secure. If loose, tighten using a 13mm socket or spanner. Not too tight because you may damage the battery casing