Mannesmann M 040 Acid r (Product Code:

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🔋 Know your battery’s mood at a glance — never get stranded again!

The Mannesmann M 040 Acid r is a compact, lightweight battery acid tester featuring a suction ball and a color-coded measuring spindle (red, blue, yellow) for instant, accurate battery charge status. Designed for ease of use without batteries, it’s a must-have tool for proactive vehicle maintenance.