Checking battery acid levels

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[kkmankVw]

Thanks for pointing out and showing that the battery fluid should only come up to the bottom of the plastic in the filler chamber and should not be coming up the sides of the chamber.  Only possible improvement to the video would have been to show what the low cell looked like before and after filling to the correct level,

[zeros_knives_and_bushcraft.]

Thanks for this, I recently made my own crank-a-watt style generator and was thinking about battery up keep.

[popswrench]

good vid and 
another thot as hydrometers get more scarce ; voltmeter .  start red to positive and just set black into electrolyte of nearest cell, usually readings 1.99-2.1 volts for a charge, resting battery . now move leads black out, red in, black into next cell electrolyte, and same ; do not touch plates, just fluid . same reading range . now if memory serves, last cell to NEG term is near 0 volts .   only need 6 readings, total should be near full volt reading across POS. & NEG. and near 12 volts & a setting battery should be BELOW 13 volts .  one just off charger will have surface charge and be 13- 13.5 volt .use a light for 5-15 minutes to remove some of that surface charge for good testing . just another method that parallels your hydrometer well.
   BOTH methods have proven BETTER, more often than fancy electronic wunders costing hundreds to thousands $$ . 

[theeabster]

instead of distilled water would it not be better to replenish the liquid with battery acid?

[cheryldahl]

My battery is leaking... is it safe to drive to the mechanic?