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Adding water to battery

>Date: Tue, 12 Aug 1997 11:18:40 -0400
>From: Chris Newbold <cnewbold@transarc.com>
>Subject: Topping-off a battery (low Audi content)
>So, I notice that the electrolyte level in the battery in my '93 90CS
>is looking low (it no longer covers the plates).
>Can I just fill'er up with distilled water, or do I need to use
>electrolyte? If the latter, where to obtain?
>I'm hoping that if I take care of this now, it'll last a bit longer
>before stranding me... :-)
>- -Chris

Chris - 

Add DISTILLED WATER ONLY. Open doors (if battery is under rear seat), open
caps, NO SMOKING - add distilled water only, close it up.

Why no smoking? Batteries make hydrogen gas when charged - remember the

Where did the water go? Normal evaporation & usage (charge/discharge) lowers
the level - batteries need to be topped off from time to time.

Sealed batteries are supposed to recycle the gasses - some do, some don't.
If the battery finally dies, check archives for best replacement - not
Sears!, and again, if under rear seat, height is a factor.

Best Regards,

Mike Arman